Boiler Types - There are many different types of boilers in the boiler room today in a variety of heating applications. There are two main categories of boilers among the different boilers and those two categories are steam boilers and hot water boilers. Either of those categories can be fueled by oil, gas, or electric (although electric is uncommon for steam boilers). (more…)
Boiler Components Controls - All hot water boilers must have an expansion tank. Water expands when it is heated. There must be a place for it to expand so that the pressure in the boiler loop remains constant. Without a hot water boiler expansion tank, the pressures in the boiler loop system would vary wildly.
Most likely, the pressure will exceed the maximum pressures designed for the boiler hot water loop system. This will result in setting off the pressure relief valve. (more…)
Air Source Chillers provide cool water for a hydronic piping system
How Hydronics Works | HVAC Technical for Consumers - Hydronics refers to using water and chilled water, steam boilers and hot water boilers, and other methods of transferring heat using water.
A boiler or chiller is used to heat or cool the water and then the water is transferred through the hydronic piping loops to heat exchangers such as coils or baseboards where heat is transferred from the water to the air for heating and from the air to the water for cooling to provide comfort for people or a process.
Hydronics is very popular in commercial and industrial HVAC applications for heating and cooling occupants in large buildings and providing heating and cooling for equipment and machines including computers and servers. Basically in a nutshell Hydronics uses water to move heat from one place to another.
The boiler pressure relief valve (PRV) is a safety valve designed to relieve an excessive build-up of pressure inside the boiler. The is a pressure vessel designed to handle a safe amount of pressure. If the pressure were to build up beyond the safety limitations as set forth by the design specifications the boiler system needs a safe way to vent the pressure to prevent an explosion. Furthermore, the boiler PRV is a safe way to vent excessive dangerous pressures inside the boiler. (more…)
