Lately, I've left my den Sanyo running overnight at 19C (66.2F),
and it does take the chill out of the rest of the house, while keeping the den at 19C..
So, if you have open doorways to rooms you want to heat, and the house
has pretty good insulation, the heat will slowly find it's way into those rooms.
Of course they will be cooler than the area where the MS is installed,
but for sleeping, some people don't like it to be too warm..
If the bedroom was too cool at night, I could crank up the den a notch..
I guess the heating season is really here as of today..
It was overcast, so there wasn't any solar gain.
When we got back from bowling and lunch, it was
quite cool indoors. Like 17-18C...
Both Sanyos have been on since then..