Xringer
I noticed on the first page of this thread that you said your house faces South with a yard that appears (to me) to have no trees.
You have the perfect candidate for this
inexpensive solar assist heating project.
Low Profile Solar Hot Air Project 1
Instead of heating the floor
above the basement with your Sanyo, you could be heating the floor from
below (radiant heating)
for free...
Also, I would install some floor registers to let heat rise more quickly.
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