Until our house is built we're renting an old farm house that has baseboard heaters. If you've ever had baseboard heat you know it's expensive and, at least to me, not very good heat.
The house also has a gas pack, but I don't really want to spend the $500 it will take to put the minimum in the tank. The propane company won't buy back any remaining gas when we do move.
My perception is that kerosene heaters seem to work well on one room or a large open space. This house is about 1700 sq. ft. but has small rooms.
A friend has a 100 lb. propane tank that I can borrow and hook to the gas pack.
Any idea how long the 100 lb. tank would last? I know there are a lot of variables like outside/inside temp., cost of the propane vs. the others, cost of a divorce if I get it wrong, etc...
We're waiting on the second power bill so we really don't have a good "base line" to go by.

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Happiness is a warm 686

Small quantity tanks are less temperature/pressure stable as they empty. When I was young and single sure! Not with a Wife, kids though? Is the hot water also electric or gas?

Your 100 pound tank will last about 4 days.

Best bet is just use the baseboard in one room, and wear your long underwear. It is only temporary. Put blankets over thge windows, and stop all frafts at the doors.

Kerosene has gotten expensive. A heater will keep 1 room comfortable, at a cost of 1 to 1.5 gal of fuel a day. @ 3 bucks a gallon, that is expensive heat.

+ 1 on the advise in the 100 lb tank lasting 4-5 days. Also, be aware of carbon monoxide from using a non vented K-1 heater indoors. If it's vented not a problem. Be safe.

Class III

I used to have to heat an old school building that I used for my portrait studio. I supplemented the furnace with radiant propane heaters that screwed right on top of the tanks. I placed them where customers wouldn’t get close, and it was much cheaper than oil for the forced air furnace.

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Warren

As m1gunner said - blankets over the windows..............

I lived in a 80 year old house before and had same problem.
Go to Home Depot or Lowes and buy the window treatment / insulation kits.
I think it's made by 3M. You install two-sided tape around frame, then plastic, then use hair drier to shrink wrap it tight. It really works well as that's where you loose most of your heat. Being clear, you can see out windows and also pull sunlight during day to help warm up house.
Also close doors to rooms that you are not using and don't heat them (UNLESS there is plumbing).
After 40 years of Michigan, Indiana, Delaware ice, snow and cold - I LOVE Alabama winters!

If you have not insulated your new house yet, I recommend foam insulation. We just moved into a new house that we built. The walls are 6" studs foam filled. We also sprayed foam into the rafters of the roof. We put 1" foam boards that have foil on both sides on the outside of the walls. We have all electric. Last month the bill was $98 and the month before it was $78. The living area is 2400 sq ft.

You mention gas pack on your heater, that usually indicates you have a heat pump.

If so, you should be able to keep the temp tolerable with just the heat pump as long as the outside temp is above 25 degrees.

If it is just a gas furnace, and the house has gas water heater and drier, you may want to fill the propane tank up. You will use it up in 6 to 8 weeks if you are there that long.

Thanks to all!
We're only heating the kids room, the living room and the "front" room. The dining room is between the living room and the front room.
All but two windows have been replaced by the owner (a friend of ours).
The water heater is electric and I finally convinced my son that hot water really does cost $$.
Sadly, no heat pump. That's what we had in the house we sold.
It's amazing how comfortable 63 degrees is to me.

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Happiness is a warm 686