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Hi PD's & a question for the west coast Scottish boiler builder - Sandy with all this talk of smoke getting our eyes :sob I wondered on a scale of 1 to 10, what would be the warranty implications if I drilled a 2 mm diameter hole in Decoys boiler funnel & pumped every couple of seconds a few wee drops of sump oil into the hot gas path & naturally controlled by a 555 timer to ensure a goodly plume of black smoke trailed the vessel :?: - would not the oil ignite at 275 degrees C before it got a chance to cause differential cooling & cooler hot spots on the inner boiler bits :?: I mean Tony will have his 1/10 crew shoveling coal into his boiler to produce the same effect so - would you consider this oil injection appropriate or if not could you requote to saw the gas burner bit off & add a fire box & grate for coal firing - no second thoughts, I don't have a 1/10 crew so no one to empty the ash grate - so more required - Derek
Now....I wonder if I could make one of those using the heater from an old glass radio valve (carefully removed without breaking the element).... :?: