Mike did an awesome job! he arrived right on time and was very professional in his actions i would recommend rick’s plumbing to everyone! Logan adds that he will also buy from craftsman and plumb mate. Elec boiler output is in kilowatts--- kw = btu/hr---thus a kw elec boiler = , btu/hr oil-fired boiler---a kw elec boiler = , btu/hr oil-fired boiler. If circumstances beyond our control cause our plumber to arrive late, we’ll pay your $ per minute (up to $).