The previous owner of our home had installed a small propane fireplace heater. It is black hard piped from the fireplace where it comes through the wall, up into the attic, and outside in the back of the house, where it exits under the eve. There it is plugged with a 1/2" NPT pipe plug that threads into an elbow. (See photos). There is no gas in our area. These type of installations are quite common out here, and they turn a fireplace into something useful, the few times a year it gets cold enough out to actually require some heat in the home. Homes here that are located on non gas lots have heat pumps that are all but worthless as far as delivering any actual heat. So I'm going to hook this up to a 20 or 30 pound propane tank I can keep outside. What I'll need is a short section of hose, (around 10' should be enough), and some fittings. Not a big deal, but it is going to require a regulator of some type coming off the tank. I'll need to go from 1/2" NPT female input, to a QCC1 Type1 that most all new propane tanks now come with. (POL fittings are becoming rare as older tanks age and go out of service). With a regulator located in the line somewhere in between. The problem is I have no information or manual on this heater. BTU output, pressure requirements, etc. I'm on my own. So I'm thinking of some type of an adjustable regulator. That way I can adjust through experimentation just how much pressure it will require to operate. The heater itself has an adjustable heat setting from "low" to "high". These heaters are everywhere, but I've never used them. Does anyone know if a gas grill regulator would be sufficient? I doubt this thing consumes as much fuel as a large gas grill with all the burners running on max.