"DS" wrote in message
...
We heat with propane., The tank is almost buried in the snow. The guy
filling it said if I kept it clear of snow, I probably would burn less
gas.
I haven't bothered. It's a big job.
Is he right?
If so, what is the reason?
Would the saving be significant?
Tx
ds

You would have to live in a place that experiances well below 0 F temps to
cause any problems at all.

The only way for the usage to increase is if the tank pressure would fall to
a level to where it wouldn't provide enough pressure to supply the connected
gas appliance.

The connected appliances are requireing an input of 11-14" wc (which is a
1/2 psi). The tank boils liquid LP to vapor, this process is slowed down as
the temp of the tank decreases. If the appliance is using more vapor than
the tank can provide, then yes the pressure at the appliance is going to
lower and effect the efficiency as well.

In order to give you an idea if all this is relavent you would have to give
some technical figures for us to go on, like the following:

1.) furnace input BTU.
2.) size of LP tank. (and position.....upright, laying on side)
3.) single or two stage regulator set-up.
4.) piping size to second stage regulator.
5.) piping size to furnace.
6.) ambient temperature.
7.) % of fuel in tank.

~kjpro~