Zehnder EVO 2 Compact Heat Recovery Unit - 471100149
Zehnder EVO 2 Compact Heat Recovery Unit - 471100149
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Delivery and Warranty
Standard UK Mainland Delivery
If you are not in a rush, then we offer standard delivery and your order should be with you between 2-3 working days.
£6.95
Next Working Day Delivery
Place your order before 12pm Monday to Thursday and receive your order the next working day. Orders placed on Friday before 11am will be processed and delivered on Monday. (Excludes Sunday’s and Public Holidays)
£15.95
Nominated Day Delivery
We know sometimes you will need an order on a particular date in the future. Simply select this option at checkout and add what date you would like to receive the order. We will then contact you to confirm the date. If you need to change this order date then please contact us ASAP.
£15.95
Northern Ireland Delivery
We offer a flat fee rate for Northern Ireland orders, and all are 5-7 working day lead times.
£29.95
Scottish Highlands & Islands Delivery
We only offer a flat fee rate for Scottish Highland & Islands orders, and all are 5-7 working day lead times.
£45.95
Channel Islands Delivery
We only offer a flat fee rate for Channel Islands orders, and all are 5-7 working day lead times.
£45.95
Product Details
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Specifications
Product specifications
| Brand | Zehnder |
| Air flow range | 85–155 m³/h |
| Heat recovery efficiency | 89% (SAP 2009) / 86% (SAP 2012) |
| Specific Fan Power | 0.62 W/l/s |
| SEC class | A+ |
| Sound at full speed | 48.6 dB(A) @ 3 m |
| Dimensions (L × W × H) | 1000 × 600 × 210 mm |
| Duct connection | 160 mm external, rotatable |
| Certification | Passive House certified, BS EN 13141-7:2010 |
| Warranty | 2 Year Manufacturers |
Summary
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- Ultra-compact 210 mm depth — fits even the shallowest suspended ceiling void
- 100% full and filtered automatic summer bypass
- Wall or ceiling mountable, left or right hand
- Rotatable spigots for flexible duct routing
- Tool-free filter access
- Wireless RF control as standard, ModBus/KNX BMS options
- Passive House certified
The Zehnder EVO 2 is a balanced mechanical ventilation unit with heat recovery, sized for studio flats, 1–2 bed apartments and smaller dwellings where every millimetre of ceiling void matters. At just 210 mm deep with the condensate fall built into the casing, it slides into voids that no other MVHR in its class will fit.
EC motors hold a constant commissioned flow rate as the filters load, so Part F duty is maintained between filter changes. The summer bypass is fully filtered — pollen and particulates stay out during warm-night purge — and an A+ SEC rating keeps EPC modelling clean. At 19 dB(A) on low speed, it's quiet enough for bedroom-adjacent installs.
Four variants available: standard, factory-handed pre-heater (for external temperatures below -10°C), mirror-handed pre-heater, and an enthalpy exchanger version that recovers moisture as well as heat.
Suitable for
- Studio flats
- 1–2 bed apartments
- Small new builds
- Retrofit projects where ceiling-void depth is the limiting factor.
Installation
Wall or horizontal ceiling mounting. Integrated condensate fall — no shimming required. 160 mm external duct connections, rotatable spigots. Wired by a qualified electrician via the supplied flying lead. Similar to the Zehnder ComfoAir Q600 specifications these units ensure optimal performance and efficiency for HVAC systems. With advanced features and smart technology, it provides enhanced indoor air quality and comfort. Users can easily install and adjust the unit to meet their specific ventilation needs. Like the Zehnder EVO 3 specifications and features the EVO 2's highlight its innovative design and energy efficiency. This unit is perfect for both residential and commercial applications, offering customizable settings for optimal air distribution. Users can take advantage of its quiet operation and state-of-the-art filtration system for improved air quality.
Specifications
| Brand | Zehnder |
| Air flow range | 85–155 m³/h |
| Heat recovery efficiency | 89% max (SAP 2009) / 86% (SAP 2012) |
| Specific Fan Power | 0.62 W/l/s |
| SEC class | A+ |
| Dimensions (L × W × H) | 1000 × 600 × 210 mm |
| Weight | 24 kg |
| Duct connection | 160 mm external, rotatable |
| Filter grade | ISO Coarse G4 (ISO ePM1 F7 upgrade available) |
| Voltage | 230 V / single-phase / 50 Hz |
| Max power (with / without pre-heater) | 1150 W / 150 W |
| Sound at low speed | 19 dB(A) @ 3 m |
| IP rating | IP40 |
| Certification | Passive House certified, BS EN 13141-7:2010 |
| Warranty | 2 Year Manufacturers |
Manuals & guides
Zehnder EVO 2 Product Data Sheet
Product Description
- Ultra-compact 210 mm depth — fits even the shallowest suspended ceiling void
- 100% full and filtered automatic summer bypass
- Wall or ceiling mountable, left or right hand
- Rotatable spigots for flexible duct routing
- Tool-free filter access
- Wireless RF control as standard, ModBus/KNX BMS options
- Passive House certified
The Zehnder EVO 2 is a balanced mechanical ventilation unit with heat recovery, sized for studio flats, 1–2 bed apartments and smaller dwellings where every millimetre of ceiling void matters. At just 210 mm deep with the condensate fall built into the casing, it slides into voids that no other MVHR in its class will fit.
EC motors hold a constant commissioned flow rate as the filters load, so Part F duty is maintained between filter changes. The summer bypass is fully filtered — pollen and particulates stay out during warm-night purge — and an A+ SEC rating keeps EPC modelling clean. At 19 dB(A) on low speed, it's quiet enough for bedroom-adjacent installs.
Four variants available: standard, factory-handed pre-heater (for external temperatures below -10°C), mirror-handed pre-heater, and an enthalpy exchanger version that recovers moisture as well as heat.
Suitable for
- Studio flats
- 1–2 bed apartments
- Small new builds
- Retrofit projects where ceiling-void depth is the limiting factor.
Installation
Wall or horizontal ceiling mounting. Integrated condensate fall — no shimming required. 160 mm external duct connections, rotatable spigots. Wired by a qualified electrician via the supplied flying lead. Similar to the Zehnder ComfoAir Q600 specifications these units ensure optimal performance and efficiency for HVAC systems. With advanced features and smart technology, it provides enhanced indoor air quality and comfort. Users can easily install and adjust the unit to meet their specific ventilation needs. Like the Zehnder EVO 3 specifications and features the EVO 2's highlight its innovative design and energy efficiency. This unit is perfect for both residential and commercial applications, offering customizable settings for optimal air distribution. Users can take advantage of its quiet operation and state-of-the-art filtration system for improved air quality.
Specifications
| Brand | Zehnder |
| Air flow range | 85–155 m³/h |
| Heat recovery efficiency | 89% max (SAP 2009) / 86% (SAP 2012) |
| Specific Fan Power | 0.62 W/l/s |
| SEC class | A+ |
| Dimensions (L × W × H) | 1000 × 600 × 210 mm |
| Weight | 24 kg |
| Duct connection | 160 mm external, rotatable |
| Filter grade | ISO Coarse G4 (ISO ePM1 F7 upgrade available) |
| Voltage | 230 V / single-phase / 50 Hz |
| Max power (with / without pre-heater) | 1150 W / 150 W |
| Sound at low speed | 19 dB(A) @ 3 m |
| IP rating | IP40 |
| Certification | Passive House certified, BS EN 13141-7:2010 |
| Warranty | 2 Year Manufacturers |
Manuals & guides
Zehnder EVO 2 Product Data Sheet
Delivery & Returns
Our Price Match Promise
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What size home is the Zehnder EVO 2 MVHR suitable for?
The EVO 2 is the smallest unit in the EVO range, sized for studio flats, 1–2 bed apartments and smaller dwellings, with a commissioned airflow range of 85–155 m³/h. It sits below the EVO 3 (2–3 bed homes) and the higher-capacity EVO 4 (up to 322 m³/h), and is the one to choose when ceiling-void depth is the limiting factor. If you are unsure on duty, send us the room count and we will confirm the right unit.
What's the difference between the Zehnder EVO 2, EVO 3 and EVO 4?
All three share the same compact Zehnder EVO platform; the difference is capacity, depth and efficiency. The EVO 2 is the shallowest at just 210 mm for the tightest voids and smallest dwellings, delivering up to 155 m³/h; the EVO 3 offers class-leading 91% heat recovery at 0.5 W/l/s in a 269 mm casing; the EVO 4 uses the same 269 mm casing but pushes up to 322 m³/h for larger homes. Choose the EVO 2 when void depth and a small footprint matter most.
Will the Zehnder EVO 2 fit in a standard ceiling void?
Yes, and then some. At only 210 mm deep with the condensate fall built into the casing, it slides into voids that are too shallow for most MVHR units, with no shimming required. The footprint is 1000 × 600 mm and it can be wall- or ceiling-mounted, left- or right-handed, with rotatable 160 mm spigots for flexible duct routing. It weighs 24 kg, so plan fixings accordingly.
How much does the Zehnder EVO 2 cost to run, and is it efficient?
It is an efficient, low-running-cost unit: up to 89% heat recovery (SAP 2009) / 86% (SAP 2012) and a Specific Fan Power of 0.62 W/l/s, with an A+ SEC energy rating. EC motors hold the commissioned flow rate as filters load, so it stays efficient between filter changes and keeps EPC modelling clean. Maximum power draw is 150 W without the pre-heater.
Which version of the EVO 2 should I choose: standard, pre-heater or enthalpy?
There are four variants: standard; a factory-handed pre-heater version for locations with external temperatures below -10 °C; a mirror-handed pre-heater version; and an enthalpy exchanger version that recovers moisture as well as heat (helpful where winter dryness is a concern). Match the handing to your duct layout, add the pre-heater for cold climates, and choose enthalpy for humidity balance. Tell us your install and we will confirm the exact model code.
Does the Zehnder EVO 2 meet Building Regulations Part F, and how quiet is it?
Yes, it is certified to BS EN 13141-7:2010 and is Passive House certified, and because the EC motors maintain the commissioned duty it supports Part F compliance between filter changes. It runs at a quiet 19 dB(A) on low speed (measured at 3 m), so it is well suited to bedroom-adjacent installs. It is supplied with a 2-year manufacturer's warranty and should be wired by a qualified electrician via the supplied flying lead.