ComfoAir 350/550 Filter 2-pack

ComfoAir 550 ERV Unit with Pre-Heater
Brand: Zehnder
Product Code: 9437-01 or 9438-01 (left or right)
Weight: 104.00lb
Dimensions: 23.00in x 29.00in x 32.00in

Price: $4,099.00

Available Options

* Use an HRV core:

Most systems in our regional climates prefer an ERV core retaining interior humidity and rejecting summer humidity. You may want to consider an HRV core if you have high interior humidity in your home from indoor pools or hot tubs, solar green rooms, or excessive cooking, etc. 

- +

The choice for large residential and small commercial projects or schools, the CA 550 has a maximum capacity of 324 cfm.

The CA 550 has all the features of the smaller capacity units, including ECM motors for energy efficiency and ease of balancing, summer by-pass cooling, frost protection mode, and resistance pre-heater and enthalpy core. Two connector pieces come included; Additional options and accessories also available.

The CA 550 is a Certified Passive House Component.


  • Comfort Ventilation up to 324 cfm
  • Heat recovery efficiency up to 84% (according to PHI)
  • Low power consumption thanks to EC direct current motors
  • Automatic summer bypass
  • Frost Protection Function
  • Quick and safe installation, maintenance and servicing
  • Moisture recovery with the Zehnder enthalpy exchanger 
  • Simple operation
  • Integrated preheater 
  • Can be coupled with ComfoFond geothermal heat exchanger
  • Integrated controller for brine geothermal heat exchanger
  • Filter replacement indicator
  • Electric and Hydronic post-heater integration possible
  • 'Open Fire' programme for properties with chimneys
  • Passivhaus Institut accredited

Dimensions: Height: 31.5”

                        Width: 28.5”

                        Depth: 22.4”

Weight: 103.6 pounds (47kg)

User Manual

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