The heated air collects in a plenum and is forced through the house via a fan pushing the air through ductwork. The machine opens a valve and the gas is delivered to the burners in the furnace. When the air in the house cools to a specific temperature, a thermostat sends a low-voltage signal to the gas furnace. Gasįorced-air gas systems use natural gas (methane) though a connection between your house and the grid on your street. The biggest drawback to these systems, of course, is the potential loss of heat due to power failure. Electricity is an environmentally friendly system, and economical as well, especially if you invest in energy-efficient appliances. This system is efficient because all the electrical energy is converted into heat energy, without any byproduct such as gas or smoke. Depending on the square footage, electric fans or heat pumps may be needed. An electric heater converts electricity into heat through a resistor, essentially a wire and ceramic coil. They are usually less expensive to purchase, although they cost more to operate, compared to oil and gas systems. ElectricĮlectric furnaces are easier to install than other systems because they don’t require any duct work. Factors to consider include cost, efficiency, and impact on the environment.įor brevity, this article concentrates on more traditional systems, gas propane, oil and electric, as opposed to green energy systems such as solar panels or wind turbines. Also, when purchasing a home, it’s best to have a little knowledge about the different kinds of systems as you tour available options. Rehabbing an older home is another chance to install the system of your choice. Investing in new construction is a great opportunity to control the type of fuel your home uses. It’s not often you get to consider what kind of heating system to have in your home.
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