Tenanted main floor suite, the tenants call to say no heat, and they cannot get the thermostat to work. Thermostat says its 16 degrees, and as its December in Edmonton, you know the temperature is going to drop quickly. Furnace is a new install less than 1 year old. I call the installer who agrees to go see first thing the next morning. He checks it out and decides it must be the thermostat which was upgraded by a different company when the AC was installed. I call the AC install team who come late that evening to check the thermostat. They say thermostat tests good, the problem is the furnace. Now Im in a pickle - its day 2 of no heat, the tenants are getting very cold, and the furnace installer and the thermostat installer are playing Hot Potato. Finally, in desperation, I call Family Furnace. I only called them because Mr Google showed me they had great reviews. So I figure - what have I got to lose. The reception was very knowledgable and asked great questions to determine what had already been tried and tested. The tech was respectful and very knowledgeable. He had seen this sort of issue before, so he had some idea what it might be - identified it, fixed it, and was on route to the next issue within an hour! Finally my tenants have heat, and Im able to sleep knowing they are safe and the pipes won't freeze.