2007-12-26 04:52:34 · 6 answers · asked by Thomas P 1 in Home & Garden ➔ Maintenance & Repairs
It really depends on the size of the radiant heater and the length of time you want to have between refills. I have a small radiant heater that will works just fine with a 20# tank. I have never used it very much so I don't know how long the 20# tank will last.
As to a large tank providing greater pressure, that is simply not true. The pressure in any propane or butane tank is determined by the temperature of the contents. It is called vapor pressure and varies with temperature. For propane it varies from close to zero psi at about -40 degrees F and up to about 200 psi at 100 degrees F.
2007-12-26 05:19:34 · answer #1 · answered by oil field trash 7 · 0⤊ 0⤋
LP is a liquid that must evaporate to be used. When it is very cold outside it needs more surface area in order to maintain a safe minimum operating pressure for you appliance. Hence the larger tank recommendation.
This vaporization is explained in the link...
2007-12-26 05:10:57 · answer #2 · answered by KirksWorld 5 · 0⤊ 0⤋
Safety
You cannot store a 100# tank indoors. Whereas a smaller tank (BBQ size) most people think because it's portable it would be OK to hook them up inside a house. DON'T
Also a smaller tank will not run out quicker and your comfort level will not be maintained.
2007-12-26 05:08:50 · answer #3 · answered by Sonny 4 · 1⤊ 0⤋
The larger tank will provide more pressure, so that the heater is fed more efficiently.
2007-12-26 04:55:47 · answer #4 · answered by Anonymous · 0⤊ 1⤋
I'd assume it's the volume of gas required, to last a month.
Otherwise, you'll be changing/refilling too frequently.
2007-12-26 04:58:31 · answer #5 · answered by Robert S 7 · 1⤊ 1⤋
Safety.
2007-12-26 04:55:00 · answer #6 · answered by CrG 6 · 0⤊ 1⤋