Hi Mike, I can verify that a propane furnace will not operate at temps below -40. (Fahrenheit and Celsius meet at -40, which is also the freezing point of Mercury). The propane will condense into liquid and will not flow out of the tank. I experienced this first-hand during a winter Boy Scout camp 30 years ago, when the furnace in the bunkhouse failed overnight due to extreme cold. Imagine the resulting pandemonium when there were about 40 kids crammed into the Ranger's house the next morning for a warm-up after breakfast!! Above the boiling point of propane you should have no problems with the furnace. Note: If there is butane or other gases mixed into your propane they will have different boiling points. Butane boils at 31F, for instance. But AFAIK butane is not mixed into propane in Canada or the US.
Happy Trails, Greg Potts 1973/74/77/79 Westfakia "Bob The Tomato www.pottsfamily.ca www.busesofthecorn.com
On 30-Jan-08, at 8:15 PM, Mike Collum wrote: > How low can the outside temperature go (outside westy propane tank) > and > a propex furnace, at or near sea level, still operate? > > Mike |
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