What Is a Boiler Economizer?

A boiler economizer is a device which is designed to increase the operating efficiency of a boiler, cutting down on operational costs over the lifetime of the boiler. Although the savings on any given day may be relatively small, the impact over time can be significant, especially with a large boiler system such as the type used to heat large buildings like office buildings and institutions. Some boilers are designed with economizers built in, while in other cases, an economizer can be fitted on after the fact.

Boilers operate by heating water to make steam, and using the steam for heat or energy generation. For the most part, a boiler is fairly efficient, but there is some heat loss when the byproducts of combustion are vented. The byproducts of combustion are still hot, often quite hot, and when they are simply vented, this represents lost heat for the boiler.

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