paulc313 Posted January 11, 2022 Share Posted January 11, 2022 Hello, My father in law has installed all the pipework for out MVHR system and all we need is the unit itself, either a Q350 or Q500. We've had it on order for around 6months but are now being told it's not going to be here till September 2022! Does anyone know of places that might have them or alternatives? He is of the opinion that other makes can't be used. Thanks Paul Link to comment Share on other sites More sharing options...
JohnMo Posted January 11, 2022 Share Posted January 11, 2022 Others can be used, for a passivhaus or otherwise. Ring around suppliers, look on internet, look on eBay. Do you need preheat? Preheat is for frost protection of the heat exchanger, I think you need to get down to -6 to -10 deg C for that to make any difference. We have not kicked in to protection mode yet because of frost, so not seeing the benefit with a UK climate. Link to comment Share on other sites More sharing options...
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