Refilling 1# propane tanks?

[corbanzo]

But to bring it back to the original subject... I guess that's part of the reason then don't fill 1#'s - liability.

 My original post has nothing to do with liability; only practicality. 

Well absolutely - practicality for us, liability for them.  They say don't do it, they aren't liable.  We do it anyways, we are practical.

[corbanzo]

One of the biggest problems using propane for heat, in a camping or similar situation , is if the heater isn't vented to the outside, then you're going to have a major condensation build up. I've had ice from inside a tent just from the condensation of a propane lantern, and a buddy heater.

Well and even bigger problem is that propane burns up oxygen like crazy, so you have to be very sure whatever structure you are in is well vented to use it as heat or light.