Best Of
Re: How to Remove Sweat Unions
the nuts are leaking because the gasket is bad. get the epdm gaskets that @hot_rod mentions.
mattmia2
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
GGross
Re: So fresh water carrying O2 causes corrosion. How about a HOT WATER TANK feeder into the boiler?
Early on @hot_rod said: "You are filling mostly with mostly nitrogen, their is approximately 20% O2 in H2O, 78% nitrogen."
I know that Bob Rohr, along with many others, knows this but the way it is written it may be misunderstood that the O part of H2O is being removed from the water. That is not the case. H2O is the chemical compound that is known as water (or ice or steam). Removing the O from that compound is a chemical reaction that will form free oxygen and free hydrogen atoms. That is not the case here for those of you that are new to the concept of dissolved gasses in water. Study Boyle's law for that explanation. The oxygen that is over 20% with the nitrogen that is about 78% along with the other trace gasses in the atmosphere are what Bob is referring to.
Those are the gasses that are dissolved in the water including that oxygen. That O2 will work on any ferrous metals in short order. As the dissolved gasses in the water become void of oxygen as it forms rust in the cast iron and steel parts of the boiler system, the ability of that water to continue to cause more rust vanishes. That is what we are trying to achieve in a hydronic system. Dissolved oxygen depleted water circulating thru the pipes will be inert and will be a great heat transfer medium for a hydronic system. Unless you have oxygen ingress thru non barrier tubing or air vent leaks or packing glands, etc… That water will stay oxygen free for as long as you leave it in the system.
This steam boiler/water heater pretreat discussion reminds me of a bakery that uses process steam to make a type of bread. When it was time to replace the boiler they went cheap on a boiler replacement. Since there was no return condensate to the steam boiler, the water that was being converted to steam was always fresh (full of dissolved oxygen) cold water. As a result, the boilers were failing in as little as 6 years. “What can we do about this?”
By adding a residential water heater and a SpiroVent before the boiler feed, heating the boiler feed water to 140°, the water contained much less dissolved gasses resulting in much less dissolved O2. The boiler would last much longer. Here is the article about it
Re: So fresh water carrying O2 causes corrosion. How about a HOT WATER TANK feeder into the boiler?
Probably much better than your tap water. If it is an open vessel it will still pick up CO2. Dust, mold spores, spiders, whatever is in your air or basement. I doubt the boiler will know or mind.
hot_rod
Re: Commissioning new Peerless 63-06
the test strips are at least as accurate if not more accurate than a meter that is usually trying to measure conductivity.
mattmia2