It was the first really cold day of the winter and Bob and Tim were on the way to a service call on an oil burner. The customer said that they had no heat. It was about 15°F outside so they were in a rush to get there.
Frozen condensate occurs when condensation and exhaust gases generated from the heating process are discharged outside via a vent pipe and freeze in the cold air. If ice continues to build up, the vent pipe can become blocked, causing the furnace to shut down.
Service Experts survey questioned homeowners in the U.S. and Canada
November 18, 2015
While 94 percent of homeowners know that the furnace can release deadly carbon monoxide gas, more than half (53.7 percent) don’t take simple steps that can prevent that from happening. That is a major finding of a survey completed on behalf of Service Experts Heating & Air Conditioning.