Does the choice of Filter on a heat exchange system affect how much air can go through the system? I am probably going to have some filters made for the Poplypipe HR01-W System. The originals are almost see through when I hold them up to the light, whereas the ones advertised as M5, G4 etc. seem a lot more dense and are advertised as filtering out pollen and even traffic fumes. I am asking due to a recent experience where I bought some cooker hood filters and the flow of air in the cooker hood seemed to be significantly reduced due to the new filters.
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Polypipe Heat Recovery filters?
- Thread starter Bertie78
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Do you mean fibre filters in hood, or metal grid?
In the cooker hood it was the circular carbon filters, model WPRO Type 145. However, for the heat exchanger I am not sure what material they are made from.
This is the original, but the replacements look like a more dense material.
This is the original, but the replacements look like a more dense material.
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Yes, but if your system is balanced to building regs gale force requirements it will be unlikely to have a profound effect on the overall freshness of air in the house, as part F's vent requirements are excessive
If you've set more like just-enough with the original filters you may find that you need to up the fan speed some when using finer filters; see what your gut feel is to the air quality in the house post replacement
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