Are high-efficiency gas boilers environmentally friendly?

They are certainly better than conventional gas boilers as they recycle heat that is usually lost. You're still using gas, but if you're going with this type of boiler, high-efficiency is the most environmentally friendly.

How long should a gas boiler last?

A high-efficiency gas boiler should last up to 15 years if maintained on a regular schedule.

Do gas boilers require electricity?

Yes, a high-efficiency gas boiler requires electricity to run an to operate any control systems that these units require.

Do gas boilers heat water?

Boilers are typically water heaters powered by natural gas. Most can heat water from 145-190 degrees.

Are gas boilers cheaper to operate than electric?

Electric boilers are typically more efficient, more compact, and less expensive to install than gas boiler systems. But it's important to note that a standard unit of electricity (kWh) usually costs three times more than a unit of gas. Therefore, your heating bills might be much higher with electric than with gas.

How much does a new gas boiler cost?

A high-efficiency model can be about $7,500. This includes the removal and disposal of an old unit, as well as all necessary ducts, wiring, and lines needed for the new system to run.

What is a high-efficiency boiler?

These boilers recover heat from the flue gases that exit a house from the flue of a conventional boiler. They condense water vapor from those gases, recovering heat that would have otherwise been lost.

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A high-efficiency gas boiler is a water heating unit fired with natural gas or propane that has high efficiency, up to 96% for some models. These boilers use condensing technology to wring out all the heat possible from the exhaust gases.

Look for Energy Star labels, and efficiency ratings greater than 91%, even up to 96%. Efficiency is rated as Annual Fuel Utilization Efficiency (AFUE).

By using 10% less gas than a standard model, these boilers reduce your energy bills and your greenhouse gas emissions.

High-efficiency boilers are so efficient at capturing combustion heat that their flue gas is low enough temperature to go out through a plastic pipe without melting it. It's incredible to think of a combustion appliance with a plastic chimney!

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