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Thanks Allen,
- It seems to have good turn-down, but I really don't know the BTU's. Fuel is delivered to the can as a premix, vs. the 'swirl' method, I think that helps alot at really low settings.
- Ignition is a push piezo (standard grill variety). The ignitor tip is located about 1/4" below the base of the flame.
- The combustion is pretty loud. I've never 'flamed-out', but on shutdown you really hear the difference through the whole system....Upon ignition, I've never had a spectator that didn't jump back.

David, I think you're almost due for another trip into roaster mania !! I don't think this would require any more space than you already use. The MH-1 was originally going together as a jet.
I went with electric because it seemed a bit more approachable....but I only subbed out the combustion liner/fuel manifold, for a heat liner/element.

On the turbo thing; A turbo is nice, in that it helps 'feed' the compression. However, it won't replace a compressor section, anymore than it could replace the pistons in the diesel.
....They only assist.

So, let me know when you're ready to build.....Ginny has volunteered as a test pilot! -Scott