WebThis creates a cooling and reheating of the tube surfaces that cause them to expand and contract. One underlying problem that can lead to thermal shock is an oversized boiler that produces too much steam, allowing … WebNov 10, 2024 · New boilers must have an AFUE rating of at last 80 percent, and high-efficiency models are 90 to 98.5 percent efficient. The higher the rating, the higher the …
Boiler Pressure Too High or Low – How To Fix - Boiler Central
WebTroubleshooting for boilers that produce steam for heating systems is approached differently than hot water boilers. Click here for hot water boiler troubleshooting. … WebApr 5, 2024 · Check the thermostat and adjust the temperature if it is too low or too high. Just make sure that you don't set the temperature above 120ºF, as this can lead to scalding temperatures and severe burns. 1. If … format range in excel
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