Many engineers are looking for better ways to produce cost-efficient gas condensing boilers. Skyrocketing utility costs has moved this objective to the front burner. The use of boilers ensures that the initial purchase cost is returned to the user through fuel savings during the first year of use. This makes these types of boilers a high commodity for homeowners who are looking for ways to save on their utility bills. Consumers have the perfect alternative for saving money and having a positive effect on the environment at the same time. These boilers can replace existing HVAC units, or be designed to work in conjunction with the units. There are a number of things to consider before choosing this type of boiler. The life cycle costs and whether one is to be installed for a single or multi-unit application are important consideration.
Condensing boilers operate best when the return water is below 140 degrees Fahrenheit. Low temperature systems such as a swimming pool or spa, radiant floor heating or a water-source heat pump will get the most benefit from these boilers. There are two basic types of gas condensing boilers which produce high efficiency by releasing heat that is captured from a condensing flue gas. The gas fired combustion boiler and the pulse-combustion boiler both use a sealed combustion air supply through intake piping and direct vent products. A primary difference between the two is the pulse-combustion boiler does not require burners to operate. Another difference is that the pulse-combustion is louder than the gas fired boiler. Mufflers and insulation can be installed to help reduce the noise, but neither of these will totally eliminate it.
People can realize tremendous savings by using gas condensing boilers, even though these cost more than non-condensing units. The average cost is approximately ,000 more. However, condensing boilers will last longer when they are properly installed and maintained. Consumers can expect to see 0 per year in energy savings.
The benefit for the environment from using gas condensing boilers is also important. Less nitrogen oxide (NOx) is produced with these units. For example, the Slant/Fin B-120-NG Bobcat has an AFUE rating of 93 percent and costs ,899.95. The Bobcat is also easy to handle and can be installed as either a floor standing model or a wall mount.
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