{"title":"Zehnder MVHR Units","description":"\u003cp\u003eZehnder MVHR heat recovery units are the backbone of whole-house ventilation in energy-efficient homes across the UK. We stock the full Zehnder ComfoAir range — from the wall-mounted ComfoAir 155 and 185 WM for smaller properties, to the ComfoAir Q350, Q450 and Q600 for larger dwellings and light commercial applications. Every unit delivers continuous filtered fresh air with heat recovery efficiencies up to 94%, helping meet Building Regulations Part F and Part L without wasting energy. All Zehnder ventilation units are in stock with next-day delivery and trade pricing.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/heat-recovery\/brand_zehnder\"\u003eMVHR \u0026amp; Heat Recovery\u003c\/a\u003e \/ \u003ca href=\"\/collections\/replacement-filters\/brand_zehnder\"\u003eReplacement Filters\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat Zehnder MVHR units do you stock?\u003c\/h3\u003e\n\u003cp\u003eWe stock seven Zehnder products covering airflow rates from 285 m³\/h to 600 m³\/h. The ComfoAir 155 WM and ComfoAir 185 WM are wall-mounted heat recovery units designed for apartments and smaller homes, delivering up to 285 m³\/h with 92–93% heat recovery efficiency. For larger properties, the ComfoAir Q350 (350 m³\/h), Q450 (450 m³\/h) and Q600 (600 m³\/h) are ceiling- or floor-mounted units with app-based speed control. We also carry the ComfoSense C 67 controller. \u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between the Zehnder ComfoAir Q350, Q450 and Q600?\u003c\/h3\u003e\n\u003cp\u003eThe three units share the same ComfoAir Q-series platform but differ in maximum airflow rate, heat recovery efficiency and duct size. The Q350 delivers up to 350 m³\/h at 94% thermal efficiency with 160–190mm duct connections, suiting properties up to around 250m². The Q450 delivers up to 450 m³\/h at 93% efficiency with 180–200mm connections for larger homes. The Q600 delivers up to 600 m³\/h at 90% efficiency, also on 180–200mm connections, and is suited to large detached houses or light commercial spaces. All three use EC motors, support left or right hand installation, app-based speed control via Modbus, and are Passivhaus Institute (PHI) certified. All Q-series units include an integrated heating element for frost protection.\u003c\/p\u003e\n\u003ch3\u003eWhat airflow rates do Zehnder ComfoAir units deliver?\u003c\/h3\u003e\n\u003cp\u003eThe wall-mounted ComfoAir 155 WM and 185 WM both deliver up to 285 m³\/h — sufficient for a typical 2–3 bedroom flat or house. The ComfoAir Q350 delivers 350 m³\/h, the Q450 delivers 450 m³\/h, and the ComfoAir Q600 delivers up to 600 m³\/h. Zehnder rates these at standard duct pressure drops, so real-world performance depends on your ductwork layout. \u003c\/p\u003e\n\u003ch3\u003eHow often should Zehnder MVHR filters be replaced?\u003c\/h3\u003e\n\u003cp\u003eMVHR filters need regular replacement to maintain airflow and indoor air quality — the frequency depends on local air quality and the environment around the property. The Q-series units use ISO Coarse grade filters as standard with 65% filtration efficiency. We don't currently stock Zehnder replacement filters, but you can order them directly from Zehnder or contact us on \u003ca href=\"tel:01613993825\"\u003e0161 399 3825\u003c\/a\u003e and we'll point you in the right direction. If you need filters for other MVHR brands we stock, use our \u003ca href=\"https:\/\/apps.efans.co.uk\/filter-finder\"\u003eFilter Finder tool\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eAre Zehnder MVHR units suitable for new builds and retrofits?\u003c\/h3\u003e\n\u003cp\u003eZehnder ComfoAir units are used in both new build and retrofit projects. In new builds, the ducted Q-series (Q350, Q450, Q600) are typically specified at design stage and installed with rigid or semi-rigid ducting in the ceiling void — they can be floor, wall or ceiling mounted with left or right orientation. For retrofits or smaller properties, the wall-mounted ComfoAir 155 WM and 185 WM offer a more compact installation, designed for wall or cupboard mounting in properties up to around 125m². All units meet the ventilation requirements of Building Regulations Part F and contribute to SAP compliance under Part L, making them a solid choice for achieving energy efficiency targets on any project type.\u003c\/p\u003e\n\u003ch3\u003eWhat makes Zehnder different from other MVHR brands?\u003c\/h3\u003e\n\u003cp\u003eZehnder was founded in Switzerland in 1912 and has over a century of experience in indoor climate solutions. They hold more than 1,400 global patents and registered designs, and operate in over 70 countries. The ComfoAir Q-series units are certified by the Passivhaus Institute (PHI), meaning they have been independently tested and verified for airtightness, heat recovery efficiency, and low electrical consumption. All Q-series units use cross-counter-flow heat exchangers and EC motors for high efficiency at low power consumption, with thermal efficiencies ranging from 90% (Q600) to 94% (Q350) at 70% airflow. The Q-series accepts duct connections from 160mm to 200mm depending on the model.\u003c\/p\u003e\n\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BreadcrumbList\",\n  \"itemListElement\": [\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 1,\n      \"name\": \"Home\",\n      \"item\": \"https:\/\/www.efans.co.uk\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 2,\n      \"name\": \"MVHR \u0026 Heat Recovery\",\n      \"item\": \"https:\/\/www.efans.co.uk\/collections\/mvhr\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 3,\n      \"name\": \"Zehnder\",\n      \"item\": \"https:\/\/www.efans.co.uk\/collections\/zehnder\"\n    }\n  ]\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Organization\",\n  \"name\": \"eFans\",\n  \"url\": \"https:\/\/www.efans.co.uk\",\n  \"description\": \"UK supplier of commercial and industrial ventilation fans, MVHR heat recovery units, fire dampers, controllers, ducting and louvres. Trade pricing and next-day delivery.\",\n  \"contactPoint\": {\n    \"@type\": \"ContactPoint\",\n    \"contactType\": \"sales\",\n    \"email\": \"info@efans.co.uk\",\n    \"availableLanguage\": \"English\"\n  },\n  \"sameAs\": [\n    \"https:\/\/www.linkedin.com\/company\/efans-direct-ltd\",\n    \"https:\/\/www.facebook.com\/efansdirect\"\n  ]\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"WebPage\",\n  \"speakable\": {\n    \"@type\": \"SpeakableSpecification\",\n    \"cssSelector\": [\"h3\", \"h3 + p\"]\n  }\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What Zehnder MVHR units do you stock?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"We stock seven Zehnder products covering airflow rates from 285 m³\/h to 600 m³\/h. The ComfoAir 155 WM and ComfoAir 185 WM are wall-mounted heat recovery units designed for apartments and smaller homes, delivering up to 285 m³\/h with 92–93% heat recovery efficiency. For larger properties, the ComfoAir Q350 (350 m³\/h), Q450 (450 m³\/h) and Q600 (600 m³\/h) are ceiling- or floor-mounted units with app-based speed control. We also carry the ComfoSense C 67 controller.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between the Zehnder ComfoAir Q350, Q450 and Q600?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The three units share the same ComfoAir Q-series platform but differ in maximum airflow rate, heat recovery efficiency and duct size. The Q350 delivers up to 350 m³\/h at 94% thermal efficiency with 160–190mm duct connections, suiting properties up to around 250m². The Q450 delivers up to 450 m³\/h at 93% efficiency with 180–200mm connections for larger homes. The Q600 delivers up to 600 m³\/h at 90% efficiency, also on 180–200mm connections, and is suited to large detached houses or light commercial spaces. All three use EC motors, support left or right hand installation, app-based speed control via Modbus, and are Passivhaus Institute (PHI) certified. All Q-series units include an integrated heating element for frost protection.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What airflow rates do Zehnder ComfoAir units deliver?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The wall-mounted ComfoAir 155 WM and 185 WM both deliver up to 285 m³\/h — sufficient for a typical 2–3 bedroom flat or house. The ComfoAir Q350 delivers 350 m³\/h, the Q450 delivers 450 m³\/h, and the ComfoAir Q600 delivers up to 600 m³\/h. Zehnder rates these at standard duct pressure drops, so real-world performance depends on your ductwork layout.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How often should Zehnder MVHR filters be replaced?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MVHR filters need regular replacement to maintain airflow and indoor air quality — the frequency depends on local air quality and the environment around the property. The Q-series units use ISO Coarse grade filters as standard with 65% filtration efficiency. eFans does not currently stock Zehnder replacement filters, but you can order them directly from Zehnder or contact eFans on 0161 399 3825 for guidance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are Zehnder MVHR units suitable for new builds and retrofits?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Zehnder ComfoAir units are used in both new build and retrofit projects. In new builds, the ducted Q-series (Q350, Q450, Q600) are typically specified at design stage and installed with rigid or semi-rigid ducting in the ceiling void — they can be floor, wall or ceiling mounted with left or right orientation. For retrofits or smaller properties, the wall-mounted ComfoAir 155 WM and 185 WM offer a more compact installation, designed for wall or cupboard mounting in properties up to around 125m². All units meet the ventilation requirements of Building Regulations Part F and contribute to SAP compliance under Part L.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What makes Zehnder different from other MVHR brands?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Zehnder was founded in Switzerland in 1912 and has over a century of experience in indoor climate solutions. They hold more than 1,400 global patents and registered designs, and operate in over 70 countries. The ComfoAir Q-series units are certified by the Passivhaus Institute (PHI), meaning they have been independently tested and verified for airtightness, heat recovery efficiency, and low electrical consumption. All Q-series units use cross-counter-flow heat exchangers and EC motors for high efficiency at low power consumption, with thermal efficiencies ranging from 90% (Q600) to 94% (Q350) at 70% airflow. The Q-series accepts duct connections from 160mm to 200mm depending on the model.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","products":[{"product_id":"zehnder-comfoair-q350-heat-recovery-unit-471502015","title":"Zehnder ComfoAir Q350 Heat Recovery Unit - 471502015","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Zehnder ComfoAir Q, with state of the art design and intelligent technology, regardless of whether you are working on a new build or an old building, with Zehnder comfortable ventilation you have an innovative, tried and tested complete system. It contains features such as its automatic modulating true summer by-pass, world class heat recovery efficiency and integrated humidity sensor to provide a comfortable, healthy and energy-efficient indoor climate.\u003c\/p\u003e\n\u003cdiv class=\"page\" data-page-number=\"1\" role=\"region\" aria-label=\"Page 1\" data-loaded=\"true\"\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cspan role=\"presentation\" dir=\"ltr\"\u003eWall mounted mechanical supply and extract ventilation with heat\u003c\/span\u003e\u003cbr role=\"presentation\"\u003e\u003cspan role=\"presentation\" dir=\"ltr\"\u003erecovery (MVHR) with humidity sensor\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cspan role=\"presentation\" dir=\"ltr\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cp class=\"sectionheader\"\u003e\u003cstrong\u003eAdvantages\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"advantages__list\"\u003e\n\u003cli\u003eComfort ventilation unit with air volume of up to\u003cspan\u003e \u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e3\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e50 m3\/h at 200 Pa\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeft or right hand unit configuration combined in one device, providing installation flexibility\u003c\/li\u003e\n\u003cli\u003eSimple and quick installation\u003c\/li\u003e\n\u003cli\u003eCommissioning wizard and intuitive device display for simple commissioning in three steps\u003c\/li\u003e\n\u003cli\u003eNew diamond heat exchanger with larger surface area for higher heat recovery and less air resistance ensuring lower energy consumption\u003c\/li\u003e\n\u003cli\u003eLatest fan technology for quiet and energy-efficient operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e World class 96% efficiency.\u003c\/li\u003e\n\u003cli\u003e 100% full and filtered modulating summer bypass.\u003c\/li\u003e\n\u003cli\u003e First unit to be recognised by the PHI for its \"cold recovery\" efficiency\u003c\/li\u003e\n\u003cli\u003e Left or right hand configuration through software alone, no mechanical alteration required.\u003c\/li\u003e\n\u003cli\u003e Commissioning wizard for a quick and simple set-up process.\u003c\/li\u003e\n\u003cli\u003e Flow control to maintain commissioned flow rates.\u003c\/li\u003e\n\u003cli\u003e Adaptive comfort technology.\u003c\/li\u003e\n\u003cli\u003e Automatic passive temperature boost in summer.\u003c\/li\u003e\n\u003cli\u003e Humidity boost continuously monitors the humidity level within the home and looks for a man-made spike before boosting the unit, irrespective of distance or dilution.\u003c\/li\u003e\n\u003cli\u003e  Tool free filter access.\u003c\/li\u003e\n\u003cli\u003e ISO ePM1 \u0026gt;65% (F7) filter option.\u003c\/li\u003e\n\u003cli\u003e App for installer and end user option.\u003c\/li\u003e\n\u003cli\u003e Wireless commissioning option.\u003c\/li\u003e\n\u003cli\u003e Remote access option.\u003c\/li\u003e\n\u003cli\u003e KNX compatibility option.\u003c\/li\u003e\n\u003cli\u003e 0-10V input option.\u003c\/li\u003e\n\u003cli\u003e Internal pre-heater option.\u003c\/li\u003e\n\u003cli\u003e Post heater control option.\u003c\/li\u003e\n\u003cli\u003e Enthalpy cube option.\u003c\/li\u003e\n\u003cli\u003e Passive House certified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManuals \u0026amp; Guides\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Zehnder_ComfoAir_Q_350_A3.pdf?v=1679343759\" title=\"Zehnder ComfoAir Q350 - MVHR - 471502015 Data Sheet\"\u003eZehnder ComfoAir Q350 - MVHR - 471502015 Data Sheet\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Zehnder","offers":[{"title":"Default Title","offer_id":44786628657473,"sku":"471502015","price":2464.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/csm_40397_8649f081eb.png?v=1679342957"},{"product_id":"zehnder-comfoair-q450-heat-recovery-unit-471502019","title":"Zehnder ComfoAir Q450 Heat Recovery Unit - 471502019","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Zehnder ComfoAir Q, with state of the art design and intelligent technology, regardless of whether you are working on a new build or an old building, with Zehnder comfortable ventilation you have an innovative, tried and tested complete system. It contains features such as its automatic modulating true summer by-pass, world class heat recovery efficiency and integrated humidity sensor to provide a comfortable, healthy and energy-efficient indoor climate.\u003c\/p\u003e\n\u003cdiv data-loaded=\"true\" aria-label=\"Page 1\" role=\"region\" data-page-number=\"1\" class=\"page\"\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cspan dir=\"ltr\" role=\"presentation\"\u003eWall mechanical supply and extract ventilation with heat\u003c\/span\u003e\u003cbr role=\"presentation\"\u003e\u003cspan dir=\"ltr\" role=\"presentation\"\u003erecovery (MVHR) with humidity sensor\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cspan dir=\"ltr\" role=\"presentation\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cp class=\"sectionheader\"\u003e\u003cstrong\u003eAdvantages\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"advantages__list\"\u003e\n\u003cli\u003eComfort ventilation unit with air volume of up to \u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e450 m3\/h at 200 Pa\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeft or right hand unit configuration combined in one device, providing installation flexibility\u003c\/li\u003e\n\u003cli\u003eSimple and quick installation\u003c\/li\u003e\n\u003cli\u003eCommissioning wizard and intuitive device display for simple commissioning in three steps\u003c\/li\u003e\n\u003cli\u003eNew diamond heat exchanger with larger surface area for higher heat recovery and less air resistance ensuring lower energy consumption\u003c\/li\u003e\n\u003cli\u003eLatest fan technology for quiet and energy-efficient operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e World class 96% efficiency.\u003c\/li\u003e\n\u003cli\u003e 100% full and filtered modulating summer bypass.\u003c\/li\u003e\n\u003cli\u003e First unit to be recognised by the PHI for its \"cold recovery\" efficiency\u003c\/li\u003e\n\u003cli\u003e Left or right hand configuration through software alone, no mechanical alteration required.\u003c\/li\u003e\n\u003cli\u003e Commissioning wizard for a quick and simple set-up process.\u003c\/li\u003e\n\u003cli\u003e Flow control to maintain commissioned flow rates.\u003c\/li\u003e\n\u003cli\u003e Adaptive comfort technology.\u003c\/li\u003e\n\u003cli\u003e Automatic passive temperature boost in summer.\u003c\/li\u003e\n\u003cli\u003e Humidity boost continuously monitors the humidity level within the home and looks for a man-made spike before boosting the unit, irrespective of distance or dilution.\u003c\/li\u003e\n\u003cli\u003e  Tool free filter access.\u003c\/li\u003e\n\u003cli\u003e ISO ePM1 \u0026gt;65% (F7) filter option.\u003c\/li\u003e\n\u003cli\u003e App for installer and end user option.\u003c\/li\u003e\n\u003cli\u003e Wireless commissioning option.\u003c\/li\u003e\n\u003cli\u003e Remote access option.\u003c\/li\u003e\n\u003cli\u003e KNX compatibility option.\u003c\/li\u003e\n\u003cli\u003e 0-10V input option.\u003c\/li\u003e\n\u003cli\u003e Internal pre-heater option.\u003c\/li\u003e\n\u003cli\u003e Post heater control option.\u003c\/li\u003e\n\u003cli\u003e Enthalpy cube option.\u003c\/li\u003e\n\u003cli\u003e Passive House certified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManuals \u0026amp; Guides\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Zehnder_ComfoAir_Q_450_A3.pdf?v=1680688225\" title=\"Zehnder ComfoAir Q450 - MVHR - 471502019 Data Sheet\"\u003eZehnder ComfoAir Q450 - MVHR - 471502019 Data Sheet\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Zehnder","offers":[{"title":"Default Title","offer_id":44877188661569,"sku":"471502019","price":3133.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/csm_40397_8649f081eb_b888b8c3-8aee-4505-b667-2fc819bb9ee8.png?v=1680551865"},{"product_id":"zehnder-comfoair-q600-mvhr-471502023","title":"Zehnder ComfoAir Q600 MVHR - 471502023","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Zehnder ComfoAir Q, with state of the art design and intelligent technology, regardless of whether you are working on a new build or an old building, with Zehnder comfortable ventilation you have an innovative, tried and tested complete system. It contains features such as its automatic modulating true summer by-pass, world class heat recovery efficiency and integrated humidity sensor to provide a comfortable, healthy and energy-efficient indoor climate.\u003c\/p\u003e\n\u003cdiv class=\"page\" data-page-number=\"1\" role=\"region\" aria-label=\"Page 1\" data-loaded=\"true\"\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cspan role=\"presentation\" dir=\"ltr\"\u003eWall mechanical supply and extract ventilation with heat\u003c\/span\u003e\u003cbr role=\"presentation\"\u003e\u003cspan role=\"presentation\" dir=\"ltr\"\u003erecovery (MVHR) with humidity sensor\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cspan role=\"presentation\" dir=\"ltr\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"textLayer\"\u003e\n\u003cp class=\"sectionheader\"\u003e\u003cstrong\u003eAdvantages\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"advantages__list\"\u003e\n\u003cli\u003eComfort ventilation unit with air volume of up to \u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e60\u003c\/strong\u003e\u003cstrong\u003e0 m3\/h at 200 Pa\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeft or right hand unit configuration combined in one device, providing installation flexibility\u003c\/li\u003e\n\u003cli\u003eSimple and quick installation\u003c\/li\u003e\n\u003cli\u003eCommissioning wizard and intuitive device display for simple commissioning in three steps\u003c\/li\u003e\n\u003cli\u003eNew diamond heat exchanger with larger surface area for higher heat recovery and less air resistance ensuring lower energy consumption\u003c\/li\u003e\n\u003cli\u003eLatest fan technology for quiet and energy-efficient operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e World class 96% efficiency.\u003c\/li\u003e\n\u003cli\u003e 100% full and filtered modulating summer bypass.\u003c\/li\u003e\n\u003cli\u003e First unit to be recognised by the PHI for its \"cold recovery\" efficiency\u003c\/li\u003e\n\u003cli\u003e Left or right hand configuration through software alone, no mechanical alteration required.\u003c\/li\u003e\n\u003cli\u003e Commissioning wizard for a quick and simple set-up process.\u003c\/li\u003e\n\u003cli\u003e Flow control to maintain commissioned flow rates.\u003c\/li\u003e\n\u003cli\u003e Adaptive comfort technology.\u003c\/li\u003e\n\u003cli\u003e Automatic passive temperature boost in summer.\u003c\/li\u003e\n\u003cli\u003e Humidity boost continuously monitors the humidity level within the home and looks for a man-made spike before boosting the unit, irrespective of distance or dilution.\u003c\/li\u003e\n\u003cli\u003e Tool free filter access.\u003c\/li\u003e\n\u003cli\u003e ISO ePM1 \u0026gt;65% (F7) filter option.\u003c\/li\u003e\n\u003cli\u003e App for installer and end user option.\u003c\/li\u003e\n\u003cli\u003e Wireless commissioning option.\u003c\/li\u003e\n\u003cli\u003e Remote access option.\u003c\/li\u003e\n\u003cli\u003e KNX compatibility option.\u003c\/li\u003e\n\u003cli\u003e 0-10V input option.\u003c\/li\u003e\n\u003cli\u003e Internal pre-heater option.\u003c\/li\u003e\n\u003cli\u003e Post heater control option.\u003c\/li\u003e\n\u003cli\u003e Enthalpy cube option.\u003c\/li\u003e\n\u003cli\u003e Passive House certified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManuals \u0026amp; Guides\u003c\/strong\u003e\u003cbr\u003e\u003ca title=\"Zehnder ComfoAir Q600 - MVHR - 471502023 Data Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Zehnder_ComfoAir_Q_600_A3.pdf?v=1680688250\"\u003eZehnder ComfoAir Q600 - MVHR - 471502023 Data Sheet\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Zehnder","offers":[{"title":"Default Title","offer_id":44887699980609,"sku":"471502023","price":3421.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/csm_40397_8649f081eb_b1ffcbf3-169a-4b90-8f24-2506506d04e3.png?v=1680686884"},{"product_id":"zehnder-comfosense-c-67-controller-655010235","title":"Zehnder ComfoSense C 67 Controller - 655010235","description":"\u003cdiv class=\"panel-pane pane-entity-field pane-node-body\"\u003eThe Zehnder ComfoSense C 67 controller is a four position switch designed to enable the user to manually select the desired ventilation systems flow rate and provide system notifications.\u003c\/div\u003e\n\u003cdiv class=\"panel-pane pane-entity-field pane-node-body\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"panel-pane pane-entity-field pane-node-body\"\u003e\u003cstrong\u003eKey Benefits \u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"panel-pane pane-entity-field pane-node-body\"\u003e\n\u003cul\u003e\n\u003cli\u003e4 separate ventilation flow rate options to select in 1 controller\u003c\/li\u003e\n\u003cli\u003e7 day flow rate programmer\u003c\/li\u003e\n\u003cli\u003eSummer bypass indicator \u003c\/li\u003e\n\u003cli\u003eFrost protection indicator\u003c\/li\u003e\n\u003cli\u003eService and Maintenance alert\u003c\/li\u003e\n\u003cli\u003eClock function\u003c\/li\u003e\n\u003cli\u003eUser menu access\u003c\/li\u003e\n\u003cli\u003eRF bridge to enable use of the CCRFZ controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"panel-pane pane-entity-field pane-node-body\"\u003e\n\u003cdiv class=\"pane-content\"\u003e\n\u003cdiv class=\"field field-name-body field-type-text-with-summary field-label-hidden\"\u003e\n\u003cdiv class=\"field-items\"\u003e\n\u003cdiv class=\"field-item even\" property=\"content:encoded\"\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 188.312px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 340.688px;\"\u003eZehnder\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 188.312px;\"\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 340.688px;\"\u003eRAL9016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 188.312px;\"\u003e\u003cb\u003eCable\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 340.688px;\"\u003e4 core cable, 1mm Max. (up to 50 metres)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 188.312px;\"\u003e\u003cstrong\u003eIP Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 340.688px;\"\u003eIP44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 188.312px;\"\u003e\u003cstrong\u003eNumber Of Speeds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 340.688px;\"\u003eIndefinitely variable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 188.312px;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 340.688px;\"\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 188.312px;\"\u003e\u003cstrong\u003eDimensions (HxWxD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 340.688px;\"\u003e\n\u003cdiv\u003e80 x 80 x 12mm\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eManuals \u0026amp; Guides\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/ComfoSense-C67-User-Installer.pdf?v=1680893427\" title=\"Zehnder ComfoSense C 67 - 655010235\"\u003eZehnder ComfoSense C 67 - 655010235\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"panel-pane pane-fieldable-panels-pane pane-vid-692 pane-bundle-text pane-fpid-137\"\u003e\n\u003cdiv class=\"pane-content\"\u003e\n\u003cdiv class=\"fieldable-panels-pane\"\u003e\n\u003cdiv class=\"field field-name-field-basic-text-text field-type-text-long field-label-hidden\"\u003e\n\u003cdiv class=\"field-items\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Zehnder","offers":[{"title":"Default Title","offer_id":44897603748161,"sku":"655010235","price":190.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/C67.webp?v=1680796191"},{"product_id":"zehnder-ca155wm-gb-comfoair-155-wm-heat-recovery-unit","title":"Zehnder CA155WM−GB ComfoAir 155 WM Heat Recovery Unit","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe Zehnder ComfoAir 155 WM is a heat recovery unit designed to enable better and easier specification of ventilation in new properties. It contains features such as its automatic true summer by-pass, high heat recovery efficiency and integrated humidity sensor to provide a comfortable, healthy and energy-efficient indoor climate.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLeft or right-hand configuration through software alone, no mechanical alteration required.\u003c\/li\u003e\n\u003cli\u003e100% full and filtered summer bypass.\u003c\/li\u003e\n\u003cli\u003eModern, discreet design.\u003c\/li\u003e\n\u003cli\u003eEasy installation to wall, cupboard, or kitchen cupboard.\u003c\/li\u003e\n\u003cli\u003eLight to handle.\u003c\/li\u003e\n\u003cli\u003eBMS capability.\u003c\/li\u003e\n\u003cli\u003eTool-free filter access.\u003c\/li\u003e\n\u003cli\u003eVolt-free contact boost capability.\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eCommissionSMART™ is a commissioning wizard that enables a quick and simple set-up process.\u003c\/li\u003e\n\u003cli\u003eSummerSMART™ ensures automatic full by-pass activation providing filtered supply air 365 days a year.\u003c\/li\u003e\n\u003cli\u003eTimerSMART™ eliminates nuisance noise and over-ventilation by determining the duration of occupancy and allocating a suitable overrun time.\u003c\/li\u003e\n\u003cli\u003eHumidiSMART™ continuously monitors the humidity level within the home and looks for a man-made spike before boosting the unit, irrespective of distance or dilution.\u003c\/li\u003e\n\u003cli\u003e100% variable AUX speed for use as an away mode, medium speed or purge boost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eH 644mm x W 546mm x D 298mm\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManuals \u0026amp; Guides\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Zehnder_ComfoAir_155WM_Datasheet.pdf?v=1719178215\" target=\"_blank\" title=\"Zehnder ComfoAir 155 WM HRU Datasheet\" rel=\"noopener\"\u003eZehnder ComfoAir 155 WM HRU Datasheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/ZehnderComfoAir-155-WM_Installation.pdf?v=1719178216\" target=\"_blank\" title=\"Zehnder ComfoAir 155 WM HRU Installation\" rel=\"noopener\"\u003eZehnder ComfoAir 155 WM HRU Installation\u003c\/a\u003e\u003c\/p\u003e","brand":"Zehnder","offers":[{"title":"Default Title","offer_id":48963022389569,"sku":"CA155WM−GB","price":1130.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/CA155WM-GB.jpg?v=1719176783"},{"product_id":"zehnder-ca185wm-gb-comfoair-185-wm-heat-recovery-unit","title":"Zehnder CA185WM−GB ComfoAir 185 WM Heat Recovery Unit","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe ComfoAir 185WM is a ventilation system designed to provide improved indoor air quality in dwellings. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eAs a whole house system, the unit continuously extracts air from the non-habitable rooms and supplies fresh, \u003c\/span\u003e\u003cspan\u003efiltered air to habitable rooms. Heat that is recovered from the air drawn from the bathrooms and kitchen is \u003c\/span\u003e\u003cspan\u003epassed through a heat exchanger and the heat that is recovered is transferred, to temper the supply air in\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ehabitable rooms to provide a comfortable indoor environment.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eA boost speed facility is provided to increase the ventilation rate, e.g. when cooking or showering, providing a comfortable indoor environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe Zehnder ComfoAir 185WM for wall cupboard or tallboy kitchen cupboard mounting with SMART technology heat recovery unit designed to enable better and easier specification of ventilation in new properties. It contains features such as its automatic true summer by-pass, high heat recovery efficiency and integrated humidity sensor to provide a comfortable, healthy and energy-efficient indoor climate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLeft or right hand configuration through software alone, no mechanical alteration required.\u003c\/li\u003e\n\u003cli\u003e100% full and filtered summer bypass.\u003c\/li\u003e\n\u003cli\u003eModern, discreet design.\u003c\/li\u003e\n\u003cli\u003eEasy installation to wall cupboard or tallboy kitchen cupboard\u003c\/li\u003e\n\u003cli\u003eLight to handle.\u003c\/li\u003e\n\u003cli\u003eBMS capability.\u003c\/li\u003e\n\u003cli\u003eTool free filter access.\u003c\/li\u003e\n\u003cli\u003eVolt free contact boost capability.\u003c\/li\u003e\n\u003cli\u003eCommissionSMART™ is a commissioning wizard that enable a quick and simple set-up process.\u003c\/li\u003e\n\u003cli\u003eSummerSMART™ ensures automatic full by-pass activation providing filtered supply air 365 days a year.\u003c\/li\u003e\n\u003cli\u003eTimerSMART™ eliminates nuisance noise and over-ventilation by determining the duration of occupancy and allocating a suitable overrun time.\u003c\/li\u003e\n\u003cli\u003eHumidiSMART™ continuously monitors the humidity level within the home and looks for a man-made spike before boosting the unit, irrespective of distance or dilution.\u003c\/li\u003e\n\u003cli\u003e100% variable AUX speed for use as away mode, medium\u003cbr\u003espeed or purge boost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eH 899mm x W 550mm x D 555mm\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManuals \u0026amp; Guides\u003c\/strong\u003e\u003cbr\u003e\u003ca rel=\"noopener\" title=\"Zehnder ComfoAir 185 WM HRU Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Zehnder_ComfoAir_185_WM_HRU_Datasheet.pdf?v=1719178508\" target=\"_blank\"\u003eZehnder ComfoAir 185 WM HRU Datasheet\u003c\/a\u003e\u003cbr\u003e\u003ca rel=\"noopener\" title=\"Zehnder ComfoAir 185 WM HRU Installation\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Zehnder_ComfoAir_185_WM_HRU_Installation.pdf?v=1719178508\" target=\"_blank\"\u003eZehnder ComfoAir 185 WM HRU Installation\u003c\/a\u003e\u003c\/p\u003e","brand":"Zehnder","offers":[{"title":"Default Title","offer_id":48963088548161,"sku":"CA185WM-GB","price":1739.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/CA185WM-GB.jpg?v=1719178299"},{"product_id":"zehnder-comfoair-q600-heat-recovery-unit-with-heater-471502024","title":"Zehnder ComfoAir Q600 Heat Recovery Unit With Heater - 471502024","description":"\u003cp\u003eThe Zehnder Greenwood ComfoAir Q600 is a MVHR Unit with internal pre-heater. The unit offers right hand configuration through software alone, meaning no mechanical alteration is required.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eComfoAir Q600 MVHR Units help to achieve comfortable and healthy living environments by ensuring dust-free air whilst protecting against excessive humidity. The units offer world class 96% efficiency and feature automatic modulating true summer by-pass.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAchieves world-class 96% efficiency\u003c\/li\u003e\n\u003cli\u003eFeatures 100% full and filtered modulating summer bypass\u003c\/li\u003e\n\u003cli\u003eRight hand configuration through software alone, with no mechanical changes needed\u003c\/li\u003e\n\u003cli\u003eIncludes a commissioning wizard for a quick and straightforward set-up\u003c\/li\u003e\n\u003cli\u003eMaintains commissioned flow rates with flow control\u003c\/li\u003e\n\u003cli\u003eIncorporates adaptive comfort technology\u003c\/li\u003e\n\u003cli\u003eProvides automatic passive temperature boost in summer\u003c\/li\u003e\n\u003cli\u003eHumidity boost continuously monitors home humidity levels and responds to man-made spikes, regardless of distance or dilution\u003c\/li\u003e\n\u003cli\u003eAllows tool-free filter access\u003c\/li\u003e\n\u003cli\u003eApp option for installers and end users\u003c\/li\u003e\n\u003cli\u003eInternal pre-heater\u003c\/li\u003e\n\u003cli\u003ePassive House certified\u003c\/li\u003e\n\u003cli\u003eDimensions: 850 x 725 x 570 mm (H x W x D)\u003c\/li\u003e\n\u003cli\u003eAirflow: 600 m³\/hr\u003c\/li\u003e\n\u003cli\u003eSuitable for property size: up to 350m²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManuals \u0026amp; Guides\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/Zehnder_ComfoAir_Q600_Heat_Recovery_Unit_-_471502024_Datasheet.pdf?v=1721334434\" title=\"Zehnder ComfoAir Q600 Heat Recovery Unit - 471502024 Datasheet\"\u003eZehnder ComfoAir Q600 Heat Recovery Unit - 471502024 Datasheet\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Zehnder","offers":[{"title":"Default Title","offer_id":49102297563457,"sku":"471502024","price":3558.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/products\/csm_40397_8649f081eb.png?v=1679342957"}],"url":"https:\/\/www.efans.co.uk\/collections\/zehnder-mvhr-units.oembed","provider":"eFans Direct Ltd","version":"1.0","type":"link"}