Victor, you don't know convenient until you use a gas forge. I can (and did earlier), fire up my gas burner and heat treat 2 knives then forge up a couple of billets. All in about 30 minutes. The advantages of gas is, you'll never burn up a piece of high carbon again (although for heat treat purposes you can overheat it). The only disadvantage is it doesn't get hot enough to do wrought iron.
Nice little forge, I got one question though....how do you work the steel when the forge is one the anvil?
Yeah I was wondering if anyone would catch that that way I get the most out of the heat...nah I just sat it up there and fired it up for a second for the pic.
The gas forge is really convenient and easy, if you don't want to weld. But some do get hot enough to weld.
Mine works OK with the bought burner, but my design was kinda flawed. It has a sweet spot that gets hot enough to forge but most of the heat shoots out the ends from the corner opposite the flame. It worked better when I capped the end with a brick. The cavity size is limiting.
I cant wait to make another one.
I personally do like coal better for general forging but propane is readily available so it makes sense to have a gas forge.