Steam Boiler

A closed vessel in which steam is generated or in which water is heated by fire or electricity.
Steam Boilers have been with us for over two hundred years, and most of the time, they’re so reliable most folks don’t give them much thought. They sit in buildings all over the world, transferring heat from fuel to water, allowing us to warm our buildings or complete our processes. Steam boilers are simple, efficient and reliable. No machine does a better job of moving BTUs from one place to another.

We’ve used them for space heating since before the United States Civil War in 1861. Even before the Civil War, we used steam boilers for industrial processes. Today we use them to run factories, press clothes, wash dishes, pasteurize milk, sterilize medical equipment, and to heat entire cities! Their capabilities seem endless. But despite its simplicity, any steam boiler can run into trouble if its control system doesn’t act properly. If the energy you put into the boiler exceeds what the boiler can absorb, the boiler can rupture. So you must always be on guard. A simple safety relief valve of the right capacity and relief-pressure setting protects the boiler from over pressure. But over pressure isn’t the only thing that can threaten a steam boiler. There are also the dangers of dry firing. Should the internal water level drop too low, the boiler can burn out. So here too, you must always be on guard. You see, a steam boiler needs its water to move the heat away from its metal surfaces. Without the right internal level of water, heat quickly accumulates. Too much heat creates a very dangerous operating condition. Boiler manufacturers have always set up minimum safe water level requirements for their equipment. Read more (pdf file: 590KB).

Understanding Residential Electronic Boiler Controls – Technical Guide (pdf file: 905KB).
How To Select Boiler Controls (pdf file: 75KB).
Steam Boilers
Boiler System Safety
How Motorized Valves Affect Steam Boiler Water Levels
Low Water Condition in Boilers is a Leading Cause of Boiler Accidents.
How to Run a Hot Water Zone Off a Steam Boiler
Multiple Issues With Multiple Steam Boilers
The Art of Making New Boilers Work with Old Systems
The Shocking Facts About Sudden Thermal Changes

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