Using heat in loft space to heat water - AEHP?
Hi, We have a victorian house with a large loft which gets incredibly hot in summer. We are looking at installing MVHR as part of a renovation project and I am exploring the possibility of adding an Exhaust Air Heat Pump. My idea would be to to take the heat from the loft space and use it to heat the hot water tank (also in the loft space). The water tank has an unused coil in it that is designed to be for solar and I imagine some sort of heat exchanger between the EAHP and the tank.
I am also considering a cooling module for the MVHR so I imagine the exhaust might also be looped via the EAHP and into the water.
I can't find much information on this arrangement anywhere online, so either it's a daft idea or I'm using the wrong terminology. Any advice is gratefully received. Thanks - Ipernicus.