How long will 150 gallons of propane last?

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  • How long will 150 gallons of propane last?


Answer #1 | 30/12 2013 04:59
I'll just say I'm no fan of closing off vents to save money. I don't think it makes the system running any shorter cycles. Each home is different, of course.
Positive: 100 %
Answer #2 | 30/12 2013 03:28
Well, covering the vents only does so much, as the entire structure is still subject to outside elements affecting the ambient temperature of the place. With the rooms fully closed off( i.e., closing the doors and putting towels up to the doors to keep drafts out) will still only go so far. The insulation is a consideration. If the floor isn't properly insulated, that's a major heat loss. If the windows aren't efficient, or the walls are thin, or the other sources of drafts aren't attended to, then heat loss will be costly. it's all about preparing for the winter months when it comes to heating. We've had 150 gallons last for a few months by turning down the thermostat when we leave, and minimizing the water heater usage.
Positive: 100 %
Answer #3 | 01/01 2014 23:15
none of the things mentioned determine your consumption…They will AFFECT it, but not determine it. The answer to your question relies entirely on the size of burner connected. 1 gallon of liquid propane contains about 90,000 btu's. So 150 gallons is about 13.5 million btu's of energy. You need to look at the rating plate on the door of your furnace and see the size of burner it has. If you also have a water heater or fireplace you also need to know the size of these burners. If you divide that number into 13.5 million, that is how many hours of burn time you would have for that appliance. For example your furnace is 80,000 btu's 13,500,000 ÷ 80,000 = 168.75 hours of the furnace running would use your 150 gallons of propane. There is 168 hours in a week so 420 in 2-1/2 weeks. 168.75 ÷ 420 = .4. so this would be running .4 of an hour or 24 minutes out of every hour to use that much propane. another example. 65,000 btu furnace. 13,500,000 ÷ 65,000 = 207.69 hours of this furnace operation would use 150 gallons of propane. 207.69 ÷ 420 = .4945 so this furnace would have to be running 30 minutes out of every hour to use 150 gallons in 2-1/2 weeks. It is all about btu's! Look at that rating plate and find your btu's. Monitor the furnace over a couple of hours and see how many minutes per hour it is operating and make sure these numbers are close. If not, you may have a leak somewhere… The things people are listing above would affect this consumption certainly, but this is how you figure out what you ARE using! I hope this helps!
Positive: 100 %
Answer #4 | 30/12 2013 08:12
insulation, closing vents just makes the furnace work harder. insulate, insulate, insulate.....
Positive: 50 %
Answer #5 | 30/12 2013 05:55
It can very drastically depending on the weather, the furnace and other conditions. If you just moved into the house, ask the propane company if they have a delivery history for your address and how much propane the house used in past heating seasons. This will give you an idea about whether too much propane is being used. Your supplier can be very helpful in determining your propane needs. Sometimes, propane lines and tanks leak and the propane company would definitely want to know about it. Leaks are dangerous. Another option is to contact the person who normally services your furnace and ask them if that seems like a normal amount of propane to burn. Some old furnaces are terribly inefficient and yours may need replaced. If your sources feel that everything is normal, perhaps you should get an energy audit to determine where you are loosing so much heat. Some older homes leak a lot of air and are inefficient. In some areas, a utility provider will do a free energy audit to help you make your home more efficient.
Positive: 0 %

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