I used my HF "weed burning" propane wand/torch to melt some ice this
weekend. It did a pretty good job - I had started it up at 11PM but it was
way too loud for evening work so I had to wait until the following day. I
was afraid the bricks and concrete would overheat, but the water changing
state from ice to water to steam kept the overall temperature down and the
brick hardly became warm to the touch.

What I would like to know is this: How can I tell how much propane I've
used and how much is left? Are there dial gauges I can attach to the tank
that can indicate remaining number of pounds? Or do I have to weigh it each
time I use it? I've "rung" the side of the tank with a small hammer, but I
expect it would take a bit of experience to tell that way.

Any tricks or tips?

--
Bobby G.