Like most houses, the oil furnace is located in the basement at our house! Our washer plus the dryer is also in the basement, and so I usually see the oil furnace when I go down to do the laundry once a week. A few weeks ago, I observed that the light on the oil furnace was flickering plus I thought that it looked more red than usual. When I mentioned this to my hubb, he got really nervous. He instantly went down to the basement plus looked at the oil furnace. Apparently the light I saw is called the pilot light. This light can be an indicator of significant concerns with the oil furnace; So my hubby instantly called in an emergency service to our local heating plus cooling corporation. I was pretty confused because I didn’t see how a light could be an emergency, but I am so happy that my hubby jumped into action. It turns out that the changes noticeable in the pilot light indicated that there was excessive carbon monoxide in our oil furnace. The heating plus cooling professional arrived promptly at our house. He was able to fix the situation. I was shocked to know how dangerous of a situation we had been in! I’m really happy that I took note of the light. I particularly wouldn’t have thought anything of it, but I guess it’s good to pay attention to your oil furnace to avoid any major concerns.