Blog & guides
Heating
Furnaces, boilers and how your heating system works.
HeatingThe difference between a boiler and a water heaterA water heater heats water for your faucets, showers and appliances. A boiler heats water (or makes steam) that circulates through radiators or radiant floors to…
HeatingHow your HVAC system works: a homeowner's guideYour HVAC system moves heat. A furnace or boiler makes heat, an air conditioner or heat pump moves heat out of (or into) your home, ductwork…
HeatingWhy is my furnace making a loud banging noise?A loud bang when your gas furnace starts is often delayed ignition: gas builds up before it lights, then lights all at once. Dirty burners or…
