Advantages
Savings are gained with improved combustion efficiency. Many buildings are heated by burning fuels incompletely in furnaces or even boilers. The advantages from high efficiency hardware and designs that efficiently convert energy contained in the fuel into heat for homes. The more efficient conversion, the less fuel is needed for a satisfactory level of comfort with costs and pollution savings.
Savings
Tests of existing heating units reveal operation at 50-60% combustion efficiency. High-efficiency replacement units (with combustion efficiencies of 90% or greater) reduce fuel costs by 30-50% over existing units. It is not that difficult to achieve improvements of 30 cents on the dollar in heating costs for homes. A monthly heating bill of $200 dollars, this equals an estimated savings of $60 per month. If the upgrade to higher efficiency costs $2,000, will definitely pay for itself in less than five years, and improves cash-flow immediately.
More Information On This Topic
U.S. Department of Energy - How to Buy an Energy-Efficient Residential Gas Furnace
U.S. Department of Energy - How to Buy an Energy-Efficient Commercial Boiler
Energy Star - Guide to Energy-Efficient Cooling and Heating