Updraft Furnace in my Countryplan...

[ajbremer]

11/12/2012

A friend wants to give me a 100,00 BTU Updraft furnace for free, most ducts and thermostate included. It's propane and there is no A-frame or compressor but for now, it can give me heat in winter.

How can I install it in my 20x30 countryplan? Could I make a little box for it under my house (It's 4 feet off the ground) and then run the ducts throughout the bottom, under the floor? The house will be skirted but it'll still be cold under there. Or, I could just put it on the floor in a closet space and run the ducts through my wooden I-Joists?

[MountainDon]

100,000 BTU is a huge furnace. Unless you lived at one of the poles, maybe

Sizing a furnace properly requires looking at many factors, insulation, heated space, climate, windows and doors, etc etc. There is a rough sizing online calculator at Alpine heating.

I think for your area you'll find that 25,000 BTU is about as big as you'd ever need.

Too big a furnace means too frequent cycling, maybe overshooting the thermostat setting, but getting too cold between runs if you try to compensate by turning down the thermostat.

[ajbremer]

Thank you for that great information once again MountainDon.

I decided against getting the free 100,000 BTU updraft furnace. I'm just going to
go with our Ashley Wood Stove and 2 propane heaters being helped by way of ceiling fans.
Your an awesome help sir.

[Native_NM]

Take the furnace and sell it.  Find something better suited.