Condensing boilers feature much higher efficiency than standard boilers. Condensing boilers are designed to recover the energy normally lost through the vent. When water vapor builds up, a condensing boiler condenses this vapor instead of allowing it to escape, bringing it back into the boiler for use. Condensing boilers can function with up to 99% efficiency.
Buderus Condensing Boilers and Weil McLain Condensing Boilers can be found at www.supplyhouse.com
