Gas or Electric we will cover up to $500. COVERED: gas valve, main burner, limit control, pilot burner, thermocouple, flame spreader, regulator, standard thermostat, manifold, relief valve, vent damper, and electrical heating element. NOT COVERED: All other components, including but not limited to: Solar water heaters, oil-fired water heaters, secondary holding or storage tanks, anode rods, noise, thermal expansion tanks, fuel storage tank, heat recovery units, flues, piping, insulation, and T&P discharge lines.