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Residential Boilers

Residential boilers are less expensive and more easily available than commercial boilers as they are smaller than commercial boilers and can be more efficient. Residential boilers typically have an energy input of less than 300,000 BTU and use a single-phase electrical supply. Commercial boilers have an energy input that is 300,000 BTU or more. These can use a single-phase or three-phase electrical supply.

What To Look For In A Residential Boiler

Boilers can be made of cast-iron, steel, or copper heat exchangers. Boilers can use different burners and venting systems. The wall-mount condensing boiler is the design of choice for most residential applications. Homeowners, builders, and heating contractors prefer this because it has flexible venting options and is compact in design.

The first thing to consider in a residential boiler is the size. An oversized boiler can be noisy, less efficient, and more costly. Proper size can be determined by calculating the heat load that the boiler will serve. The cost effectiveness of the boiler must be compared with different efficiency ratings. Generally, high-efficiency models are more expensive than lower efficiency ones. Your boiler has a life of 20 to 30 years, so it's crucial to choose the right model so that long-term costs can be minimized. Condensing boilers are the most efficient. These boilers condense the water vapor from flue gases and extract heat from them.

Payback Period For High Efficiency

Payback period is the time it takes for the unit to recover its purchase, installation, and operating costs. The shorter the payback period is, the higher the boiler's efficiency. To find out which unit will be most cost-effective for you, compare the initial costs of the boiler and the annual energy costs you incur.

For example, say a high-efficiency boiler costs $4,000 and the lowest efficiency model costs $2,000. Now find out the annual energy cost of each boiler. The EnerGuide label on your boiler will tell you what its annual energy cost is. For example, if the difference is $300, it means the high-efficiency boiler will save you $300 a year on fuel costs. Payback period can be calculated by dividing $2,000 (the difference in price between the two boilers) by the annual energy cost difference of $300 = 6.7 years. So an energy savings of $300/year will offset the extra cost of a high-efficiency boiler in 6.7 years. When you take annual savings into account, don.t forget to factor in rising fuel prices.

Popular Brands

Popular residential boiler brands available in the market include:

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