It provided more even temperatures
For quite a few years, I totally neglected the maintenance of my gas furnace. I was pretty good about replacing the air filter regularly, but failed to schedule annual service with a licensed HVAC contractor. Because of this, a great deal of dust and other contaminants gradually built up within the inner workings of the heating unit. The debris restricted airflow. Maximum amount of heated air was no longer reaching the various rooms in the house. Whenever I’d turn up the thermostat, the furnace needed to work a lot harder to achieve the set temperature. The longer running times put an excess of wear and tear on components and increased the risk of malfunction. Plus, the system was eating up way more energy and therefore costing a lot more to operate. I was paying higher utility bills for less comfort. The rooms in my home were often chilly, no matter how I adjusted the thermostat. The larger workload for the furnace adds up to a greater impact on the environment as the furnace produces more greenhouse gasses. It also creates concerns with indoor air quality. Every time the hot air entered the various rooms, it was introducing the harmful toxins that were concealed inside the furnace. I didn’t realize that I was vacuuming and dusting so often because the furnace was dirty. When I finally invested in professional upkeep, I was amazed by the improvement in the performance of the heating system. It provided more even temperatures. My home smelled better and felt more comfortable. My heating bills decreased and I didn’t need to clean so often.