Heating, Air Conditioning, Fridge, HVAC/Oil fired home boiler


My home temp is staying at 75 - 80 deg even though I have my digital thermostat set betw 62 - 65 deg. I had someone ck the temp setting on my boiler. said they were fine. Told me to change the thermostat because it was 15 yrs old. Base boards are still constantly hot and I still have the problem. What can it be?

It is very likely that your system has a flow-check device on the piping near the boiler which is hung up, or has been left in the opened position.  You can follow the link below if a photo might help you to identify what I am referring to:


If it has been left in the opened position you will need to turn it closed.  If it is stuck it can often be freed by banging on it with a hammer.

If you have a zone valve system, and do not use flow checks, you probably have a bad valve.  You will need a heating tech to replace a bad zone valve, and refill the system.

With Regards,


Heating, Air Conditioning, Fridge, HVAC

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Mike Reavis


Questions related to "Wet Heat". This is heating your home, office etc. with radiators, panels, and convector apparatus. Steam and water heat. I can answer questions about boilers, piping,and associated parts of these systems. Please do not ask for specific information about how I feel about one boiler, etc. over another--These questions should be directed to a licensed contractor that you know of, or that your neighbors and colleagues look to to provide solutions.


I have 20 plus years experience, which has lead to passing my state master HVAC license.


Completed college

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I work on the manufacturer's side of the business currently

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