Condensing Boilers for Heating
Condensing Boilers are becoming more and more popular due to their increased efficiency over traditional boilers. Condensing boilers offer efficiency of over 90%, up to 99% at lower burner settings. They use the hot exhaust flue gases from the combustion process to preheat the cold water entering the boiler. This lessens the amount of heat that needs to be added by the combustion process, and allows the boiler to consume less fuel while producing the same output temperatures.
Water vapor is one of the main products of the combustion process, and is output in a gaseous phase. This gas is passed through a heat exchanger where it gives up its energy to the supply water and condenses to a liquid. The main difference in installation and design of a condensing boiler is that the condensate must be captured in a drain. Condensing boilers also use an electric fan to push the exhaust gases out of the flue, because after the gases give up their heat to the supply water they no longer rise as easily.
Condensing Boilers are designed to be easy replacement for a traditional boiler. They are designed to be as compact as possible for maneuverability in tight spaces and for simple installation. They are available in a wide range of sizes and outputs, to suit just about any situation that requires hot water.
Applications for Condensing Boilers Include
- Residential Homes
- Auxiliary Heat for Renewable Systems
- Commercial Buildings
- Industrial Facilities Requiring Hot Water and/or Space Heating
- Hydronic Heating
Condensing boilers are better for the environment because their higher efficiency means that they are required to burn less fuel. This results in less greenhouse gases being output into the environment and a reduced operating cost. This type of system will always perform at the same or higher efficiencies as a traditional boiler in the same situation.
Efficient Heat. (2009). The Best Eco-Friendly Energy Saving Devices. Retrieved from http://www.efficient-heat.net/: http://www.efficient-heat.net/services.html