Circulation Fan System Advice/Specifics

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I don't know my HVAC terminology all that well, but it's an A/C + propane furnace system, both operating via forced air through ceiling ducts. I would love to have hot water based radiant heat, but apparently the builder saw otherwise. During really cold weather, this system burns a ridiculous amount of propane (sometimes running nonstop for 24 hours or more) and we never really feel warm. The wood stove has been a tremendous improvement in that regard. We're very happy with it except for the uneven heat distribution, particularly at night.
That's a good design for AC but not very good for heating. Hot air rises so it tends to be hotter from 4 ft up and colder below, especially if the slab is uninsulated.
 
Are you sure the ducts above the ceiling are well insulated and sealed?

And how well are your walls insulated?
Window leaks?
 
Through wall is the way to go. Seal up the pass through before you install the fan.

I like this one

Master bathroom is just going to be cold. Maybe a through wall would work, but it’s not going to be warm. Electric heat is what I decided on for ours. It costs $45 a year to heat it. We did radiant electric under the floor. Worth every penny as it’s over a crawlspace.

i am entering the phase of life where spending more on comfort is appealing. A freezing bathroom is at least worth a coffee a week for me!
 
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Through wall is the way to go. Seal up the pass through before you install the fan.

I like this one

Master bathroom is just going to be cold. Maybe a through wall would work, but it’s not going to be warm. Electric heat is what I decided on for ours. It costs $45 a year to heat it. We did radiant electric under the floor. Worth every penny as it’s over a crawlspace.

i am entering the phase of life where spending more on comfort is appealing. A freezing bathroom is at least worth a coffee a week for me!

Radiant in the bathroom is definitely a great way to go. Mine is only using like 150 watts when on. Nothing beats having warm feet while doing your morning business.
 
I have tried that and it does not seem to help at all. Might be due to the intake being quite far from the stove, albeit in the same general area.
Is there some way you could use fans to move the hot wood stove air to the propane furnace fresh air intakes? Normally there would be more than one fresh air return for the furnace. Identify all of the ducting they put it, supplies and returns.