Given the coefficient of performance of heat pumps is a function of the difference in temperature between the two mediums, if you can use heat recovery on the s

Given the coefficient of performance of heat pumps is a function of the difference in temperature between the two mediums, if you can use heat recovery on the shower water you can boost your COP further by having both. I'm in the midst of this exact system being installed: it'll be extracting hot, humid air from the bathroom and receiving pre-heated mains water via a reclamation unit. The main thing with EAHPs is finding a plumber who is cognitively flexible enough to fit one. I'm on number six and it is finally going in next week.