Talk:Exhaust air heat pump

As my source for the second paragraph, I have unpublished correspondence from one of the manufacturers.

The second paragraph is not strictly correct, it is possible to add more heat to the house if the heat pump cools the exhaust air below the temperature of the incoming fresh air. Of course, at this point, the heat pump might as well be using outside air directly. 89.143.166.223 (talk) 09:22, 27 July 2014 (UTC)

Errors, omissions and lack of technical information in general.
In the second paragraph, it is stated "it cannot add heat to the house". This is an incorrect statement. A well designed and dimensioned exhaust air heat pump will add heat to the house, since it can cool the exhaust air below the temperature of the outside air. Also, the heat generated by the heat pump while functioning, can be effectively recovered and is an active heat gain, contrary to the statement "this type of heat pump will not work as the primary source of heat for a home".

In general, the article is missing several technical informations regarding the functioning and details concerning usage and advantages and disadvantages. Most of the information provided is tendentious and negative, related to a particularly case where the systems were clearly undersized for the application. — Preceding unsigned comment added by 155.185.94.170 (talk) 12:02, 15 January 2016 (UTC)

Hyper specific to the UK and otherwise a narrow description of a specific use case
I think this page needs to be rewritten or deleted. 172.58.110.178 (talk) 12:04, 2 February 2022 (UTC)


 * I agree, this is some very bad information from a country that barely uses heat pumps and with famously bad construction. EASHPs are used frequently in the nordic countries where it is much colder and without any of these UK based problems. I am deeply skeptical that the limited UK experience with EASHPs is reflective of the actual reality.
 * If a house with a EASHP can have efficient year round heating where it's -20C or colder, but a house in the mild UK climate cannot with an identical unit. Perhaps there's some other factor. Österbotten (talk) 08:06, 18 December 2022 (UTC)

Maybe so, but could you be more specific? KeeYou Flib (talk) 22:20, 2 February 2022 (UTC)