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Old 01-03-2020, 07:57 AM   #21
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water in the propane

A while back I read a very thorough article on cold weather issues with propane. Can't find it now, but a similar one (by www.marshallexcelsior.com) mentioned that water in the propane is a major culprit of freeze ups. As propane is used, water vapor comes out of solution and can condense into water then freeze at temps lower than 32F. Combine this with the fact that as a gas (propane) expands, it gets colder. So the tank, lines and especially the regulator can be colder than ambient air temps, especially when gas is used rapidly like in a high BTU furnace. So not only do you have to heat the tank, but the pipes and regulator as well.

The water typically comes from the wholesale/retail propane distribution system, unless you leave the valve open on an empty tank for a while.
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Old 01-03-2020, 11:05 AM   #22
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Quote:
Originally Posted by djkarau View Post
I live in Canada where it regularly gets down to -40c. If the tanks are anywhere's close to full you will be fine. -15 is t-shirt weather up here!
For info: -40 C = -40 F
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Old 01-03-2020, 11:41 AM   #23
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I lived in Fairbanks, AK for many years and routinely BBQ'd steaks outside on a propane grille at with temps at -40F - -50F without any issues. Many places in the lower 48 tend to "dilute" their propane with butane. Therein lies the problem.
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Old 01-03-2020, 04:03 PM   #24
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Propane tank issues

When I worked in the tool rental business, we frequently rented out 30,000 to 1,000,000 BTU propane heaters. Any thing over about 85,000 BTU we always sent 2x 100#upright tanks WITH a manifold . We found the amount of propane thru the regulators on a single tank ,could, at lower operating temperatures, freeze up, causing heater stoppages
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Old 01-04-2020, 09:16 AM   #25
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If your in a site where you do not have to move your TT, you could always place your tanks into a shed with a heat lamp, timer and thermostat.
That setup works in Iowa
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