Winter fuel consumption Propane Furnace

With our camper the most we have used is 15 lbs. of propane and that was for cooking, the fridge, and heating the camper in weather that stayed below 32 degrees for one of the three weeks of our trip. We have two 20# tanks and never empty the first one.

Based on our usage the 40 lbs. of propane would last us at least a month in the winter months. It is a toss up to a degree as to the outside temperature which probably helps with propane consumption for the fridge but we need to run the furnace more.

The cubic feet of space in a camper is about the same as a standard bedroom so not much is required to heat it to 66-68 degrees which is the setting we prefer for both the camper and our house.

The furnace fan only runs when the furnace is runnning which is not all the time. Our solar panels recharge the twin batteries to 100% within a few hours of daybreak.

If I remember correctally my 30,000 BTU furnace pulls about 11 Amp when it is running. Your owners/furnace manual should list the Amperage draw.

Heating a 28 ft 5th wheel for a 10 day December deer hunting trip in Minnesota with average night temps -5 to +5 degrees and daytime temps around 25 degrees we normally use between 120 to 140 lbs of propane heating and cooking. That has been our average fro the last 3 years. Before that with a 24 ft camper trailer we averaged 100 - 120 lbs using a direct vent heater. I have used a catalytic heater in smaller trailers and they are far more efficient but generate way too much humidity to be practical. Water will be running down the walls after a day. We use a Honda 2000 watt generator and it powers the furnace, lights, refrigerator and microwave. Running 18 hours a day we use an average of 14 gal of gas for 10 days. i can't tell you numbers of BTU's or R-value of insulation just if I was leaving on a 10 ice fishing trip today that is what I would bring.

You will run out of power long before you run out of propane

The blower will kill a standard RV deep cycle battery in about six hours of continuous running.

Hi,

You would need to know the rate at which the RV cools off at the temperature and wind conditions you would be in. Search degree heating days.

I've managed to get from 38000 btu's down to 19000 by adding various things. The item that made the most difference is insulbright covers. At -36 c (-33 f) I'd go through 20 pounds of propane per day.

My chart shows 1 pound of propane equals 21,300 btu's.
Or, 102,600 btu's per gallon.

Too many variables to answer this question regarding propane consumption.

I think a better question would be concerning your RV battery amp/hr capacity & by what means you have for re-charging.