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. • any bypass or alteration of the water heater controls and/or wiring will result in voiding the water heater warranty. draft regulators - barometric dampers: a guide to barometric dampers on oil fired boilers, furnaces, water heaters: inspection, adjustment, cleaning, troubleshootingdraft regulators
& barometric dampers: a guide to barometric dampers on oil fired boilers, furnaces, water heaters: inspection, adjustment, cleaning, troubleshooting how automatic draft regulators work how barometric draft controls. consult troubleshooting guide in effikal manual, packaged with vent damper. - - damper...
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