Knowing that the best would be having no energy spending costs, ideally energy consumption in our homes should come from renewable energies, that would be a plus to our personal finances, as well as our planet.
Nonetheless, because either our home does not allow such systems, because they are too expensive, because their energy production is not enough or any other valid reason, there is still a big demand of gas fueled equipment to heat the water or to warm our home.
Given this is a certainty, then there is little we can do, but choose wisely, among what the market has to offer, considering which kind of equipment is best for our needs and for our savings, as well as our planet.
So why are condensing boilers so efficient? When natural gas is burned, there are three major products of combustion; heat, water vapor and carbon dioxide (other byproducts are present, mainly pollutants in trace amounts, but for this discussion only heat, water vapor and carbon dioxide will be considered). In a non-condensing boiler, a significant amount of heat is lost thru the flue. Typically 12-25% depending on the type and age of the boiler; and the conditions that it’s operating at. A condensing boiler, operating at ideal conditions, can limit those losses to as little as 2-3%. This is accomplished by “condensing” the water vapor in the flue gasses and reclaiming the latent heat of vaporization. Without getting too detailed about how this is done, the hot flue gas is used to pre-heat the cool return water. The cooler the return water, the more condensation is formed on the heat exchanger and the more latent heat is recovered. As you can see in the chart to the right, the efficiency varies quite a bit with the return water temperature. In fact, the warmest the return water can be and still condense the flue gas is about 125 degrees F. Above that, the boiler operates as a traditional non-condensing boiler with correspondingly traditional efficiency. Find boiler quotes and other factual information at quoteaboiler.
Replacing your boiler no longer needs to be a pain. Quoteaboiler gives you the factual information you require about the different boiler replacement quotes, prices, brands and service coverage areas available in the market place in 2016. We have compiled a detailed boiler replacement guide, so please use this information to pick the home heating solution that is suitable and affordable to your individual household needs.
Written By Matt Freitas