Any suggestions on an LP powered garage heater to use infrequently during the winter so I can do some work in the garage? I've been using one of the kerosene wick heaters, but btu-wise, it's pretty low (<30,000) and takes awhile to warm the garage. I suppose I could go with a K1 salamander, but they stink. I've got a 20lb propane BBQ tank I thought I could use hence looking at some of the propane heaters. Of course, a CO2 detector would be used.