As you can see from this chart, if it's pretty mild outdoors, you can get a lot of BTUhs..
Here's the basic spec sheet.
http://i46.photobucket.com/albums/f1...L/poweruse.jpg
The truth is, I have no idea of the actual BTUhs that are being pumped,
I'm just going by the room temperature. These things can keep the house
nice and warm, and don't use a lot of KWhs.
We've been using them off and on, for the last few weeks. The heating season has arrived.
Wondered about why more heating than cooling.?. It seems weird..
Maybe it has to do with HX coil size. When the larger(outdoor) HX is absorbing heat, instead of dumping it, maybe it works better.?.