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Lochinvar Knight boiler that sometimes makes a loud singular BANG, upon firing up
I have a Lochinvar Knight boiler that sometimes makes a loud singular BANG, upon firing up.
It is very similar with the thread from aksteveex from March 2017 in Gas Heating. Ironman had the most helpful information so far.
I too, am in Southcentral Alaska. Our contractor is very knowledgeable, and was her last month for the annual (thorough) cleaning and service. When I described what we hear from time to time, he thought it was from the silt we get in the area. In my opinion that is not the case now, as we have had a constant snowcover since before he cleaned it.
Some might question from the other thread about zone valves. The noise I have heard is during firing. Sometimes it will go weeks or months, but happened twice yesterday, and once this morning.
Any assistance would be greatly appreciated.
I will call our service folks tomorrow, and ask them, but seeing if others might have a solution.