The guys who gave you those quotes, maybe have been calculating the cooling..
I know my Sanyos do super on cooling. But, there is normally only 5 to 20 degrees F
difference between indoor and outdoor temps during the summer.
When It's 80 out, we normally want it to be 75 (and dry) indoors.
But, the temperature difference during the colder parts of the winter are BIG.
And, it seems like (in my house), it's a lot easier to cool than to heat.
Our Den also has a lot of windows. Even when they are all sealed up,
they are still a big source of heat loss. If the insulation isn't too good.?.
Then maybe it's like Hotwire says, 14,600 BTUh just can't keep up with the losses..
Just before lunch, my wife was cooking, so I closed off the den.
To isolate the 'cooking' air from the den Sanyo.
I turned off the LR Sanyo to keep it's filter nice and clean.
(It's still off because of solar gain).
I know it was 24.2 °F outdoors, but I was still amazed how much heating
the sealed off den still needed.. Sanyo#2 was using 800w most of the time.
After the sun came around from the west a bit, it's down to 600w.
The main reason for this loss (in a 288 sq ft room) is the windows & sliding door.
More than 100 sq ft of window in that room is just too much.
This isn't Florida!!
