The heating was on, but there wasn’t any heat.

I had a real problem the other evening. I had been having a lot of heat flashes lately, and I thought winter was going to be a cakewalk. I was upset when I went for three weeks without a single heat flash, and it was the coldest part of winter. I couldn’t get warm, no matter what I did. I knew the furnace was running, because I could hear it turning on and off. That’s when I realized the furnace was turning on and off more often than it should be. There was very little heat coming from the air vents. I knew I had a problem. I called the HVAC company and told them what was going on. They sent a HVAC technician to the house. He said the furnace was working fine, but he was worried there was a blockage in the air vents or in the ductwork. He had to get a professional ductwork cleaner to the house. Luckily, their company had a service with the cleaning equipment installed. He was able to get a service tech who was able to run the machinery to come to the house that afternoon. The one air vent was almost totally blocked with debris, but it was the air filter that was my main problem. The air filter was totally clogged with dirt and debris.. There was no airflow getting through the air filter and it was affecting my furnace. He said I had to remember to change the air filter, or next time I may not be so lucky. He said it could have destroyed my furnace.

Space heater