A long time ago, gravity furnaces in the Puget Sound Region were a very popular means of heating a home. Instead of pressurizing and blowing air through vents to each room of your home, a gravity furnace used gravity to move warm air between rooms.
The operation of these furnaces is pretty simple. When turned on, the furnace, which is located in your basement, burns fuel like gas or oil and produces heat. That heat is vented through ductwork to the top level of your home using the natural properties of gravity (hot air rises). The hot air exits vents as it travels up in the home and releases heat into the room.
Why to Replace a Gravity Furnace
While gravity furnaces can work nearly forever and have very few mechanical problems, they are incredibly expensive to operate and take up a lot of space. Due to the sheer volume of ducts needed to distribute air throughout your home and the cost of heating enough air to ensure it rises properly, you’re dealing with a heating efficiency of 50% or lower.
In fact, about half the energy you consume to heat air in a gravity furnace gets pumped straight out through the chimney. It’s a complete waste of money and a replacement will start saving you money almost immediately.
Newer furnaces replacements have efficiency ratings of up to 95% which makes them nearly twice as efficient as gravity furnaces. Additionally, they take up less space and with modern components, you can install newer devices like zone controls, electronic readout and display and more. It’s a fantastic way to enjoy steady, reliable heat in your home without having to invest a fortune in the fuel needed to operate it.
Another thing to consider is the comfort level of your home. Because gravity furnaces release warm air through the middle of the house and cold air comes back down along the walls, homes that have them are rarely comfortable except in the middle of the house. Forced air furnaces with blower fans are much more efficient at distributing heated air and matching the thermostat settings you select. Get started installing your efficient heating system by calling Bob’s Heating & Air Conditioning.