Water tube Boilers

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This boiler was built in 1986 by   Elroy Ekdahl for his Steam boat Ethel D. The boiler has 65 square feet of heating surface. The main drum is 8" D and all the tubes are 1/2" A106 Sch 40 pipe. All welding is to the ASME code.

This boiler was designed by
Fred Merriam. Two boilers were built by Fred and Elroy.
The boiler has 65 square feet of heating surface. The main drum is 8" D and all the tubes are 1/2" A106 Sch 40 pipe.
All welding is to the ASME code. The boiler on the right is after stress releasing .