Best Of
Re: Help with a hot water fed home radiant heat system
picture would help
Im envisioning auto air vents, the chromed parts and some sort of remote thermostatic valve with a long cap tube
Any brand names on the parts?
If the system has a small leak, and fresh water keeps entering, that can corrode ferrous parts, like an expansion tank, quickly
Just some wild guesses
hot_rod
Re: Makeup water causing boiler failure due to thermal shock
but if it were oil only the burner would have stopped when the power went out.
Re: How to Remove Sweat Unions
the nuts are not the sealing component, changing them will not accomplish anything. It is the face of the tailpiece that does the sealing, the nut just holds the tailpiece against fiber washer and valve body
hot_rod
Re: How to Remove Sweat Unions
the nuts are leaking because the gasket is bad. get the epdm gaskets that @hot_rod mentions.
Re: Goodman furnace flame flutters then turns off with constant clicking
You may have a cracked heat exchanger. If it is out of warranty then that means a new furnace, If it is in warranty, That means that you pay someone to take the heater completely apart to replace the heat exchanger then put it all back together again. That ain't cheap either.
If you don't have a cracked heat exchanger, Lucky you! but the flame sensor will need attention. That could be a simple cleaning of the electrode or a replacement control and half a dozen other things that cost somewhere between the two. I have tested flame sensor controls by using a propane soldering torch held at the flame sensor to see it the problem goes away, then I know the controls are good and need to look elsewhere. If the problem does not go away with a steady flame on the flame sensor, then I go in the other direction.
EDIT: I'm not recommending that propane torch test to a DIY. Only a short cut to the pro that understands how flame rectification works.
Re: What kind of baseboard radiator is this?
This company make that type of heater, along with a few other companies.
Re: T6
Interesting…. So the thermostat is the part that is opening the burner circuit? seems strange after 40 minutes of operation…. There are some here that have added a time delay on break to the circuit to allow the extra 4 to 8 minutes of off time so the thermostat can cool off before the burners relight and stay lit for a few more minutes when they actually do relight. let me look up the Dunkirk PSb-6D to see where the best place to install that time delay. I'm not sure the thermostat replacement is going to help you in this case.
Re: T6
If the thermostat is operating the boiler from a cold start for 40 minutes then starts the short cycling after that much time, you most likely have a pressure switch or LWCO that is cycling the burner, not the thermostat. You can test this theory by disconnecting the thermostat and using a jumper wire at the thermostat location. After the 40 minute run time, if the boiler will start to short cycle with the thermostat wires jumped together, then it is not the thermostat at fault. Look elsewhere.
Re: What kind of baseboard radiator is this?
That’s a called a convector, not a BB even though they’re similar.
Is there any kind of tag in the cabinet that would ID it?
Ironman
Re: What kind of baseboard radiator is this?
I have had decent luck ordering suitable replacement convector guts from mestek/beacon morris, usually not an exact 1:1 but I have had luck getting something in there that fits and is of comparable capacity

