Technologies: Hot Water
and molds can be heated by running hot water through them. This water is heated
between 70-200°F from an outside source such as a boiler or water heater either
electrically or using natural gas.
(both steam and hot water designs) are designed to burn various fuels and transfer
the released heat to water and steam (in steam boilers) and to water (in water
boilers). Codes and standards address the allowable heat transfer rates based
on the internal heating surface area. All boilers are classified based on working
pressure, fuel used, size and shape and other factors. These factors impact initial
cost, performance and space requirements. All systems allow for connecting to
a piping system, delivering the heated steam or water to the point of use, and
returning cooled fluids to the boiler. Natural gas-fired boilers are commonly
applied in either low- or high-pressure designs; and, in general, operating economics
favor the natural gas choice when larger volumes of steam or hot water are required.
Hot water boilers
are generally applied for low-pressure use (less than 15 psig steam and up to
160 psig hot water) and are commonly available in sizes from 35,000 to over 100,000
module more fully addresses steam and hot water boiler classifications, fuel choices
and overall operating economics.