Furnace issue.
I am the owner of a 264bh. We went for our first cool weather trip this past weekend and had a problem with our furnace not firing the second night there. Temps got down to 28 degrees. I had one tank ...
Forum Discussion
westend wrote:Most likely a vaporization issue especially for a 20-lb bottles of propane. As the tanks empty the available BTU's reduce as the vaporization of propane cools the liquid (same process that makes your AC work). This gets worse as the temperature drops as the tank can't use the outside air to heat the propane. As the tank gets lower and the temperature outside gets cooler the colder the liquid propane gets and can even freeze.I don't know how this kind of information gets passed out, I see it all over the Internet. Propane isn't a solid until it is cooled to -300f. It vaporizes at -44f.
I used to load liquid propane at -250f. The pressure building inside our tanks when it warmed was an issue until we installed a compressor and cooling array.
So maybe freeze wasn't the correct word. But the tank will still stop providing the necessary BTU's needed to run the furnace or any other high demand appliance as it gets colder out and the longer you run it. Simple physics.
The solution is always: full tank, warm the tank (can be dangerous), or a larger tank.
