How do I know if my heating system is not working properly?

Q: How do I know if my heating system is not working properly?

If your home isn't reaching the desired temperature or it takes a long time to warm up, your heating system may have a problem. Cold spots or significantly colder rooms can indicate an issue with your heating system's distribution. Strange sounds like banging, clanking, or whistling from your heating system can signal trouble. A sudden spike in your heating bills without a corresponding increase in usage can indicate inefficiency or malfunction. Lastly, if your heating system turns on and off rapidly, it may struggle to maintain the set temperature.