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Adding 2 zones of Hot water baseboard heat to existing 2005 Burnham Steam Boiler
oversteaming
Member Posts: 1
in Gas Heating
I'm a homeowner in need of guidance since the heating professionals we hired have not been able to resolve the malfunctioning boiler. We converted to a Gas Boiler heating system to service 1st & 2nd floor (steam radiators) and added forced hot water baseboard to Attic (zone1) and forced hot water baseboard to Basement (zone 3) when we added the hot water baseboard heat in the Attic and basement. Our heating issues started.
1. Loud Hammering and water thrashing noises in the Attic baseboard (Aqua Pex) when attic is calling for heat or when 1st floor calls for heat
2.On occasion when attic calls for heat, the 1st floor over heats
3. Basement baseboard has never worked.
Under the guidance of Plumbing & Heating professionals we have replaced numerous circulators, cleaning heating exchanger plate, then uninstalling heat exchange plate. We recently spent serious money having HVAC company re-pipe boiler to Burnham Specs as they believed was the root of the problem. Unfortunately issues persist. Greatly appreciate some guidance.
1. Loud Hammering and water thrashing noises in the Attic baseboard (Aqua Pex) when attic is calling for heat or when 1st floor calls for heat
2.On occasion when attic calls for heat, the 1st floor over heats
3. Basement baseboard has never worked.
Under the guidance of Plumbing & Heating professionals we have replaced numerous circulators, cleaning heating exchanger plate, then uninstalling heat exchange plate. We recently spent serious money having HVAC company re-pipe boiler to Burnham Specs as they believed was the root of the problem. Unfortunately issues persist. Greatly appreciate some guidance.
0
Comments
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Not sure how much you have explored the wall, but here is a good article about hot water zones off of a steam boiler. You mention a heat exchanger, but unless I am missing something I don't see one in your pictures?
https://heatinghelp.com/systems-help-center/how-to-run-a-hot-water-zone-off-a-steam-boiler/0 -
Both circulators in your photo have cast iron volutes. You need a bronze or stainless volute pump, preferably a 3-piece design (Taco 110, B&G Series 100, Armstrong S25) due to the high water temps.
The article linked to above covers it well.0 -
Agreed about the wrong circulators. They are also piped in a way that will allow steam-temperature water into their zones, causing water hammer.0
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