ClimateMaster 17B0031N04 Thermistor 318973-401 which complies with safety standards
Baker’s notes & crumb story
Description
ClimateMaster 17B0031N04 Thermistor 318973 401 which complies with safety standards which complies with safety standards for indoor installation without the need for external vent piping to the outdoors What are the symptoms of a failing boiler vent damper