The cold winter was approaching, even though I was not ready because our heating, ventilation, as well as A/C plan was not finally working properly. My heating, ventilation, as well as A/C plan had stopped heating, as well as it was starting to smell like smoke! It had been a while since I cleaned our gas furnace. The gas furnace had a defective heat exchanger, as well as the gas valve control was leaking gas into the home. It was operating inefficiently, as well as it was wasting a lot of the precious gas… Since I did not have enough money to contact a heating, ventilation, as well as A/C company, I decided to try a maintenance routine on it since I had some knowledge concerning heating. The first thing I noticed is that the gas furnace was not producing enough heat as well as that the filter was jammed. Since at that time, I did not have enough money to replace the filter, I simply cleaned it, hoping that it would work. The safety switch at the gas furnace door was actually really old, as well as it needed to be replaced… But what I did was, I turned the power off as well as wired the safety switch officially. The other thing that I needed to do was to clean the inside of the gas furnace. The basement was clustered with all sorts of unwanted particles that made the gas furnace not do its job properly. I worked on the burners to ensure that they were free from debris. I tried to use a vacuum cleaner to clean the burners. I walked through the entire house, checking the vents to ensure that nothing was blocking them at all. I was hopeful that the gas furnace would function properly, however unluckily, it did not. I had no other idea other than to contact a heating, ventilation, as well as A/C company.