Stove problem in snow - Fiberglass RV


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Old 05-29-2021, 11:12 AM   #1
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Name: Larry
Trailer: Burro
California
Posts: 90
Stove problem in snow

Been chasing this issue for a few years.
Original propane stove works great at temps.mid 40ís and up, but colder temps 20ís to high 30ís it struggles and wonít be lit.
Tank is full, Weighed it, changed regulators, blew out the lines and manometer tests normal pressure at home and higher temps.
Last week camping in the snow with temps slightly below freezing it worked fine the first day, but slowly diminished, then would not light.
When it did it went out as soon as a tea pot was put over the burner.
Tried different propane suppliers, thinking I was getting watered propane or too high a butane mix,as well as 3 different tanks.
Just put a new regulator on hoping it would solve it, but same story when it gets cold.
I think it should be good down to 0 F , at least.
Thinking my regulator(s) have been freezing up, but havenít tried the hot water remedy over the regulator. Reg. Vent is pointed down.
Any ideas would be welcomed!
Larry
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Old 05-31-2021, 11:20 AM   #2
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Name: Ed
Trailer: Casita 17 ft SD
Colorado
Posts: 156
Propane Operation in Cold Weather

This information is from the web site Hunker.com

Liquid propane and water act similarly when temperature drops, but their boiling points differ. At sea level, propane begins to boil at a temperature of -44 degrees Fahrenheit and produces propane vapor, while water boils at 212 degrees F and produces water vapor. As the temperature drops below 212 degrees F, water stays in liquid form, it doesn't change to a vapor. Similarly, as the temperature outside the propane tank drops and approaches -44 degrees F, less propane boils inside the storage tank producing less vapor and a lower pressure.

Critical Temperature
As the pressure inside the propane tank drops, it eventually becomes too low to light a furnace or other appliance. At -44 degrees F or lower, propane stays as a liquid, there is little vapor and propane appliances won't function properly. Therefore, for appliances to work correctly, a propane tank must usually be kept in an area with a temperature greater than -44 degrees F.

Cold Temperatures
In climates where the temperature may drop to well below 0, small, insulated frame shelters house propane tanks. Applying a heat tape specifically designed for propane tanks may keep the tank above -44 degrees. Sometimes propane tanks are buried to protect them from cold temperatures.
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