Furnaces and Boilers

Change for the better with ENERGY STAR

What's the difference between a furnace and a boiler? A furnace delivers heat through an air duct system, whereas a boiler heats water or steam that circulates through radiators, baseboards or radiant flooring. Furnaces and boilers can run on gas, oil, propane, electricity and even biofuels. No matter what the fuel source, these systems require a large amount of energy to operate. So the more efficiently they run, the better off you’ll be when it comes to your utility bill and your comfort.

ENERGY STAR® certified furnaces use advanced technology and are up to 15% more efficient than standard models. Many of these units feature a high-efficiency blower motor known as Electronically Commutated Motor, or ECM, which helps reduce a furnace’s electricity use. In fact, replacing an older induction motor in your furnace with a new ECM motor will reduce a furnace’s electrical energy usage by approximately 20%.

ENERGY STAR certified boilers use approximately 10% less energy than standard boilers and offer energy-efficient features such as:

  • Electronic ignition – Eliminates the need to have a pilot light burning continuously on gas-fired boilers
  • Combustion technology – Extracts more heat from the same amount of fuel
  • Sealed combustion – Uses outside air to fuel the burner, reducing draft and improving safety

Boost your energy savings with these energy-saving tips.