That would depend on it`s size or input rating. You can get the input rating off the unit nameplate and divide that # by 2500 and that will tell you how many cubic feet of propane vapor the furnace burns per hour. If you buy propane by the gallon ask your supplier how many cubic feet of vapor a gallon of liquid propane yields and you can figure your answer.
Propane heaters cost less to run per hour.
$1,000,000,000,000
Propane heaters cost less to run per hour.
1,400 cubic feet per hour of liquid propane is about 10,472.7 US gallons per hour.
propane has 21,548 BTU per pound so about 2 1/2 pounds per hour remember that propane is stored in a liquid and you need a big enough tank to allow the propane to change from a liquid to gas.
I just installed a propane furnace, I don't know what kind you have, but mine runs about 9 minutes. Depending on the draft or air movement around the thermostat and coolness a furnace should cycle on average, so I'm told, 3x's an hour. If you ask me that would mean some major air issues, but I'm not the furnace expert. Anyways hopes this helps. Best thing to do is call a heating-air conditioning person.
On average a general 5000# to 7000# fork lift will use 1.5 gallons of Propane.
you are referencing a 75,000 BTU furnace.
King of the Hill - 1997 24 Hour Propane People 10-12 was released on: USA: 23 April 2006 Australia: 27 December 2007
I would say around $100 if they do not have a special going on. Figure 1 hour at their normal rate. That is of course if they don`t find anything wrong, then additional.
1 cubic foot = 7.4805 gallons
Propane has a heat content of 19,900 btu/lb net. This means that a 36000 btu/hr heater needs to burn 1.809 lbs of propane per hour to produce this amount of heat. A 40 lb bottle will last about 22 hours if the heater runs continuously.