Boilers are pressure vessels designed to heat water or produce steam, which can then be used to provide space heating and/or service water heating to a building. In most commercial building heating applications, the heating source in the boiler is a natural gas fired burner. Oil fired burners and electric resistance heaters can be used as well. Steam is preferred over hot water in some applications, including absorption cooling, kitchens, laundries, sterilizers, and steam driven equipment. Boilers have several strengths that have made them a common feature of buildings. They have a long life, can achieve efficiencies up to 95% or greater, provide an effective method of heating a building, and in the case of steam systems, require little or no pumping energy. However, fuel costs can be considerable, regular maintenance is required, and if maintenance is delayed, repair can be costly.
Boilers are often one of the largest energy users in a building. For every year a boiler system goes unattended, boiler costs can increase approximately 10%. Boiler operation and maintenance is therefore a good place to start when looking for ways to reduce energy use and save money.
Guidance for the construction, operation, and maintenance of boilers is provided primarily by the ASME
(American Society of Mechanical Engineers), which produces the following resources:
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- Rules for construction of heating boilers, Boiler and Pressure Vessel Code, Section IV-2007
- Recommended rules for the care and operation of heating boilers, Boiler and Pressure Vessel Code, Section VII-2007 steam driven equipment.
for boiler repair and maintenance in and around Grantsburg, WI.Boiler description source: Northwest Energy Efficiency Alliance (NEEA)