DIY hearth oven from a propane grill
I am in the process of converting a "42,000 BTU/hr" propane grill into a pizza/hearth oven. The grill is a used (and definately abused) three burner I found on craigslist. The box is rather large and mostly square, so lining it with firebrick shouldn't be difficult.
I tested it -without adding any new components- and it can produce 550* F .
I expected a higher reading; it is rated at 42,000 after all, but I was relying the grill's own therometer. I will test again with a better meter... and once most -but not all- of the bottom holes are covered with brick. (I know enough that propane sinks, and if one burner goes out...)
Anyway, this grill has a side burner that I was hoping to use for steam generation. I was thinking of incorperating a small pressure cooker and some high PSI copper tubing with a valve to serve that function.
I have 'googled': steam generation, DIY hearth oven, and a dozen different terms that I thought might give me some indication of how to proceed without scalding myself to death or causing a pressure cooker to explode, but I've come up with very little info.
I've been browsing the 'FornoBravo' forums, but they seem to frown on ANY oven that isn't wood fired.
Anyone here who has built a similiar contraption, I would love to hear back from you,