A very long time ago I read my first furnace insurance book and found that their lifespan usually lasted about 15 years. “What to do after?” I asked myself, “replace it or fix it every single year?!”

At that time I was not experienced in using furnaces, so I called my neighbors and asked what furnace they had installed? I was surprised to know that they did regular maintenance to reduce the risk of breaking down.

We should keep an eye on all our appliances, especially the major…