Will a furnace be damaged if it freezes? Yes 57% No 42% Get Free Quotes Today! Question: Will a furnace be damaged if it freezes? Top Answer (57% of 14 votes): Yes. Answer: No Explanation: It would have to be way below zero before any damage would occure. Kair Answer: No Explanation: Only if it's a condensing furnace. Arizona's Best Heating & AC, Inc. Answer: Yes Explanation: if it is a condensating type it could be damaged HVAC and More Get Free Quotes From Local Pros ProMatcher Answer: Yes Explanation: in some cases CASEY'S HVAC LLC Answer: Yes Explanation: A condensing or 90% furnace can be damaged due to freezing. Dr Heat & Cool Comfort Experts Get Free Quotes Today! Find Local Pros Free Forced Air Furnace Repair Cost Estimates Related Questions Are the fumes emitted from an oil-burning furnace dangerous to humans?Top answer: Yes Can a gas furnace be converted to an electric furnace?Top answer: Never An electric furnace is more energy efficient than a gas furnace.Top answer: False Should a furnace fan be running at all times?Top answer: No Can I use a regular air filter for my furnace filter?Top answer: Yes