--Richard Bassler 01:34, 28 September 2010 (UTC) Good work! Page is organized very well and seems to be free of spelling/grammatical errors (except for that HTML error with the reference in the 'How it Works' section, but I'm sure that's an easy fix). Everything is readable and easy to understand. The only thing I can think to suggest is maybe a visual aid or two so you can actually see what the heat pumps look like.
--Andrew Demos The page was well organized. The way the air system is explained is difficult to follow with the current way it is written. Source 5 has a big error on your page that needs immediate changes ( considering you used it twice) I would recommend some visual aid to accompany the description of system parts. Otherwise good work.