MVHR Filter Replacement - Greenwood

MVHR Filter Replacement

Filters in Heat Recovery (MVHR) systems need to replaced 1-2 times a year to maintain good levels of indoor air quality


# Filters Matter.

They matter a great deal in Heat Recovery Units and for the entire Heat Recovery System.


Filters ensure that air being drawn in from outside the building is suitably filtered of any airborne particles such as dust and pollen before if enters the home. In families where there are allergies and conditions such as asthma this is a crucial part of well-being in a home with heat recovery ventilation.

Read about Ed and Bob - two daddy longlegs and a load of black muck...

You can also watch our videos on how to change the filters in heat recovery units - and see the black muck for yourself!


If filters are clogged, the heat recovery unit won't be able to draw in air at the rate it is supposed to (just like your clogged hoover filter!).  This will then impact airflow rates (both supply and extract), it may introduce noise as the system will be working harder and overall, it will impact the comfort of the home

We extended our GIP focus... (Guaranteed Installed Performance all the way!)
We have launched the first every Homeowner Registration scheme for Heat Recovery Units with the objective of ensuring that performance is maintained throughout the life of the unit.  This is an extension of our GIP focus - when the installers move out and the occupants move in our input doesnt end.  Click to register your heat recovery unit now 

Replace your MVHR Filters now;

You can purchase you replacement heat recovery filters easily in two ways;

On-line: click and pay for delivery to your door

Collect: find the local wholesaler in your area

All you need to know is the model number of the heat recovery system you have - this can be found on the unit itself or in the operation and maintenance booklet you have with the document...


If you know what the unit looks like look take a look at our MVHR Range page and identify it through here

Zehnder Group