While looking at the Dewitt Clinton as a candidate for a GA1 model with what scales out to approximatly a .875 (7/8") outside diameter boiler - the question is how small is too small ?
I have roughly laid out the boiler with two 1/4" o.d. smoke tubes, there is room for perhaps three tubes but the water volume in the boiler is so small I think it better to keep the smoke tubes in the lower 1/3 of the boiler to get longer run times. One has been built (not by me), the pistons were .25 Dia. It only ran 4 minutes before water had to be added. How would one size the meth burner for such a small boiler, would two 1/4" dia. wick tubes be a fair match for two 1/4" dia. burner tubes? Kindest Regards, Pete Harjung
