According to ASME Section IV, a heating boiler includes any boiler with a maximum temperature below 250°F and a maximum pressure below 160 PSIG. In application, LTHW systems refer to those designs where the temperatures are below 250°F. Typically, a LTHW system operates with a maximum operating pressure of less than 30 PSIG.
Typical operating temperature settings on a boiler call for a Low temperature (boiler cut-in) between 120 and 160 °F. Typical operating temperatures on a hydronic boiler call for a high temperature (boiler cuts off) of 180-200 °F. Over 200 degrees F. we're at risk
12/03/2014 · The average setting for a gas-powered hot water boiler is 180°F. This provides the appropriate level needed for most cold weather temperatures. If you can raise the temperature manually, do not set it any higher than 210°F (which is often the limit), and
The Essential Guide to Industrial Hot Water Boilers
Heating System Gauges: Pressure and Temperature Gauges on
This European Standard (EN 14394) specifies requirements for boilers with normal operating temperatures between 100 °C and 110 °C and has a "dual structure": • For boilers where the shut off temperature of the safety temperature limiter does not exceed 110 °C the Pressure Equipment Directive (PED) requires" Sound Engineering Practice",
Safe management of industrial steam and hot water boilers
boilers now operate at the pressure of the incoming cold water mains, this is still far below the normal operating pressure of steam-raising boilers. This leaflet applies to steam and high temperature hot water boiler plant (operating above 0.5 bar pressure and a temperature of 110 °C). It describes a process which