BOILER REPAIR & INSTALLATION | Comfortable Living  Boilers - Hot water boiler heating is the cleanest and most economical way to heat your home. For years, ASP has installed and serviced and installed boilers down to a tee. A new boiler offers environmental and safety advantages. Using less fuel and producing fewer toxic by-products of combustion, new boilers reduce the risk of carbon monoxide exposure within the home or business, and contribute to a cleaner external environment for us all. A boiler replacement that reduces gas consumption by 20 percent could save about five to 10 cents per square foot annually. Boilers are available in two efficiency ranges: around 80 percent for standard conventional boilers, and percentages in the 90s for energy-efficient condensing units. The dividing line between these efficiency ranges is based on the boilers ability to withstand condensing flue gases. Condensing flue gases, which occur in high-efficiency boilers, require special design considerations to tolerate the corrosive effects of the condensate. Boiler efficiency is defined as how much of the heating value of the fuel is being converted to useful heat. Condensing boilers absorb more heat from combustion gases, allowing the water vapor to condense and therefore providing increased efficiency. Any hydrocarbon fuel burned in a boiler, whether it is propane, natural gas, or fuel oil, produces water vapor during the combustion process. Conventional boilers are non-condensing boilers with materials that cannot tolerate the corrosive properties of condensing flue or stack gases. Conventional boilers operate around 80 percent efficiency, compared to over 90 percent efficiency for condensing efficient boilers. Other factors also influence boiler efficiency, including boiler shell losses, piping losses, and cycling losses.