Q:

What are some types of residential steam boilers?

A:

Quick Answer

Types of residential steam boilers include the watertube steam boiler and the firetube steam boiler. Another type of residential steam boiler is the electric steam boiler.

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Full Answer

The residential watertube steam boiler consists of an upper steam drum, a lower mud drum, a convection section and a furnace section. The watertube steam boiler contains water-filled tubes that connect the various areas inside of the furnace. The furnace heats the water tubes so that they generate steam. Watertube steam boilers are safe options for residential areas because there is little chance of failure due to the lack of mechanical parts and the fact that the boiler does not contain large amounts of water.

The firetube steam boiler uses thermal conduction to create steam. The boiler consists of a cylindrical furnace that houses a flame and tubes filled with combustion gases. Firetube steam boilers require daily inspections of tube plugs, safety valves and firebox stay heads to ensure that residential areas are safe.

Electric steam boilers are compact and easy to install. They are also clean, quiet and reach nearly 100 percent energy efficiency. Electric steam boilers range in energy output from 9 kilowatts to 3,375 kilowatts. The electric steam boiler does not use combustion to create energy, but converts electrical energy into thermal energy to generate steam. Electric steam boilers are more sustainable and cause less pollution, but still require a large amount of electricity to run.

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