Heat Recovery System - CA350 ComfoAir

Zehnder CA350 Heat Recovery System - ComfoAir


Excl. VAT: £1,811.03 Incl. VAT: £2,173.24
Zehnder CA350 Heat Recovery System ComfoAir
01604 403333
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Availability: In stock
Shipping Cost: £0.00


Zehnder Heat Recovery System - CA350 ComfoAir (MVHR)

The Zehnder ComfoAir CA350 is a PassivHaus accredited product, part of our Zehnder Comfosystems range and has been designed to provide whole house heat recovery to houses up to 220m² (based on 2006 Building Regulations). With excellent energy performance it is a whole house heat recovery system both extracting and supplying air whilst recovering heat that would have otherwise have been lost through the ventilation process.

Key Stats

  • A highly efficient Zehnder Comfosystems Heat Recovery System
  • EST Best Practise Performance as low as 0.70 w/l/s and 88% efficiency
  • Suitable for houses up to a maximum of 220m2 (ADF 2006) and 150m2 (ADF 2010)
  • Up to Kitchen + 7 additional wet rooms
  • A PassivHaus accredited product
  • Integral and filtered Summer By-Pass
  • Standard GU4 filters
  • Think System: Think Unit: Think Ducting
More Key Information about Zehnder ComfoAir 350
  • SAP Reward: Outstanding Energy Performance With a Specific Fan Power as low as 0.69 W/l/s and heat exchange efficiency as high as 88%, the Zehnder CA350 Heat Recovery unit easily achieves EST Best Practise Performance and offers specifiers and designers excellent reward in SAP through the Dwelling Emission calculation.
  • PassivHaus Accredited The CA350 LUXEPH model offers excellent energy performance and has been independently certified by the PassivHaus Trust to be PassivHaus accredited making it suitable for a wide range of highly insulated new build developments. With such a high certification, the ComfoAir 350 (CA350) has been widely specified for new build houses and apartmentsCA350 Recovery System
  • Summer By-pass and high grade filtration The Zehnder CA350 has been designed with a filtered summer by-pass which ensures that overheating in the property in warmer summer months is eliminated. By by-passing the heat recovery mode, ventilation is continuously provided without warm and humid air entering the property unnecessarily. In addition to summer by-pass, the unit is also provided with grade GU4 filters as standard. Filtration of incoming air is crucial to ensuring a good level of indoor air quality at all times for occupants and especially essential in highly insulated dwellings where Heat Recovery is installed. Once the summer by-pass is activated, the fresh incoming air continues to be filtered (unlike a high number of other units)CA350 ComfoAir Heat Recovery System
  • Bent it- Shape it - Any way you want it - DUCTING SYSTEM ComfoTube Semi Rigid Ducting is a revolutionary development in ducting for residential ventilation installations. Perfect for whole house heat recovery, ComfoTube is supplied on long rolls and can minimise connections by up to 75%! Designed with a strong and crush resistant construction, ComfoTube is a radial ducting system which dramatically reduces any issues with noise and air leakage as each room is provided with an individual run, ensuring specified ventilation rates can be met easily. No sealants or tapes are required with ComfoTube installations - Winner of Housebuilder Products Brand new Product of the Year 2013.Heat Recovery System
  • Luxury Model The CA350Luxe PH model offers additional control options for the homeowner including radio frequency connectivity for additional switches which may be required around the property - removing the need to hardwire all switches. In addition, the luxury model which is available in right or left handed configuration has a built in pre-heater and is the PassiveHaus accredited option.CA350
  • Cooling NOT Air Conditioning Zehnder ComfoCool is a unique option which works in conjunction with a ComfoAir Heat Recovery System, designed to regulate 'comfortable' levels of temperature and humidity within the home, thereby ensuring a consistent and pleasant indoor climate.How does it work?
    • ComfoCool is equipped with a compression cooling system the same as used in refrigeration
    • It is capable of reducing the ambient temperature by up to 5 degrees and the relative humidity of an entire home by up to 20%
    • The cooling is automatically activated based on monitoring the intake air temperature against the predefined comfort temperature
    • The combination of ComfoCool and MVHR cools more efficiently as the Heat Recovery unit behaves more like a 'cold recovery unit' in warm weather - the warm fresh air is pre-cooled by the heat recovery unit and then cooled further by the ComfoCool
    • ComfoCool is available with the ComfoAir 350 and ComfoAir 550 models, therefore ideal for house applications
    ComfoCool is designed to work very differently to air conditioning units
    • An air conditioner recirculates air present in the dwelling but does not help to ventilate it
    • Air conditioning units only work in the room in which they are located whereas ComfoCool cools air throughout the entire property
    • Comfocool offers low energy consumption and low noise
    • Condensate drainage is combined with the ventilation unit therefore requiring no further installation requirements
    • No external unit is required as ComfoCool is simply connected to the MVHR system thereby offering a compact, unobtrusive cooling solution.
Condition: New
Manufacturer Greenwood
Shipping Cost £0.00


Standard Delivery To UK Mainland

Standard Delivery is £6.99 including VAT to UK addresses.

Order online before 2pm and we aim to process your order the same working day.

Order online after 2pm and we aim to process your order the next working day.

Orders placed on a Friday after 2pm will be processed on the following Monday – if there is a bank holiday, it will be processed on the next working day.

Please note: next day delivery is dependant on us having the goods in stock, therefore we cannot guarantee next day delivery – but we will do our best!

The amount charged for delivery is just an amount to cover the cost of transport.

Some products may have an extra charge for delivery – this may be because the item is heavy or awkward to move.

The reason for any higher delivery cost will be explained to you in full before your order is processed .

Our courier may charge more to deliver to some UK addresses* – but if any problems like that occur, we will inform you before dispatching your order.

Next Day Delivery 

Place your order before 2pm and it will be with you the very next day!

All for a standard delivery charge of £10.00. Applies only to mainland UK*

* Exceptions apply. Your delivery options will be confirmed at the time you order. Our next day delivery service is not available for sale items.



Delivery outside of UK Mainland

We do deliver to some areas outside of the UK – to enquire about costs of delivery to your area, please contact us. 

*Please note you may be asked for an additional carriage charge if not Mainland UK, ie Northern Ireland, Isle of Wight, Scottish Highlands and Channel Islands.


Free Delivery

Orders placed with a value of £50 or over (ex. VAT) qualify for free delivery. This only applies to the UK and some surrounding areas.

Free delivery applies only to the initial delivery of the item, replacement items may be subject to delivery costs please see the returns FAQ.

You must have the free delivery option selected when checking out for our website to register your choice. This option is selected by default where available.


Collection at Store

It is possible to collect your order from our store in Northampton.

Sometimes we have to pay for items to be delivered to our store, and so there may be costs involved when collecting at our store.

Please contact us for current stock levels, and any costs.

Please note:

Depending on your location, sometimes we may send you an email asking to confirm that you want to collect the item from our store in Northampton.

You will be given until the next working day to reply, after which we will process the order.

If you decide at a later date that you wish for the item to be delivered, you might need to pay our actual cost for delivery. This is because we might have already paid for the item to be delivered to our store.

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