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Frozen LP regulator or lines.

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hockeydad

RVF Newbee
Joined
May 30, 2022
Messages
1
My first post. We own a 2022 Thor Vegas 25.6 and our LP regulaor or lines freeze up in 20 degree weather and furance stops. Wondering if other campers experienced this failure and their remedy. When temperature warms up furnace works great. Thanks for your help.
 
Nature of the beast. I can't use my gas grill on the back deck because as the temp drops, LP's ability to turn gaseous also gets reduced. Eventually, there's a point that LP simply won't turn into a gas. (Colder than 20*F.) My guess is that your furnace is demanding a gas delivery that the system can't give at the temps you mentioned. If there was a way that you could warm up the gas bottles, that would help considerably.
Do-able if you're plugged into shore power.
Roger
 
I don't understand this. I've lived in an rv in 0 degrees and never lost my gas furnace due to propane freezing up.

I even had an extension hose hooked to them with them sitting outside on the ground unprotected.
 
Google it, there is a table that shows how many btu's are available from a tank at various temps. I had never heard it either as our gas bottles were on the outside of the house back in Maine and I never lost pressure. But those were bigger tanks also. They make a heating blanket to warm them up.
You also could have moisture built up in the line from condensation and other by products of gas, Disconnecting it at both ends and blowing air thru it will clear it, recommend blowing back to the regulator as some say it is a messy goop in there.
 
Did you buy your fuel in a warmer climate? The ratio of propane/(think)butane changes to fight this problem.
 
I don't understand this. I've lived in an rv in 0 degrees and never lost my gas furnace due to propane freezing up.

I even had an extension hose hooked to them with them sitting outside on the ground unprotected.
The bigger the bottle you have the more propane you can draw before it freezes up. I don't remember the temperature exactly, I think 0*F? but you can only get approx. 40,000btu from a 20lb bottle, but you can get 125-150,000 btu from a 100lb tank at the same temperature.
Very large propane heaters actually have a pre-heater tube out in front of the burner to run the propane through and pre-heat it so it will vaporize when it actually gets to the burner.
 
The bigger the bottle you have the more propane you can draw before it freezes up. I don't remember the temperature exactly, I think 0*F? but you can only get approx. 40,000btu from a 20lb bottle, but you can get 125-150,000 btu from a 100lb tank at the same temperature.
Very large propane heaters actually have a pre-heater tube out in front of the burner to run the propane through and pre-heat it so it will vaporize when it actually gets to the burner.
I had 30 pounders.
 

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