Hunta74
2021-09-09 20:47:34
- #1
I understand your train of thought and agree with you. My problem is that underfloor heating still needs to be installed for the air-to-water heat pump on the second floor. I would like to carry out this step before the windows.Unfortunately, I cannot answer your question. Please forgive me for a small hint in another direction. Depending on whether the existing heating system still works at all or not, I would rather do it the other way around. An air-to-water heat pump operates very efficiently especially at low flow temperatures and dramatically worse at higher ones. The efficiency curve is not as steep with old heating systems. Poor insulation of the building, however, leads to regularly needing higher flow temperatures. Ergo, your electricity consumption in the year you heat your poorly insulated (because of old windows) house with an air-to-water heat pump would be very high! Second reason: Currently, I hear about delivery difficulties with heat pumps, less severe with windows. It may stabilize within the next year (but does not have to).