Half a zone not heating
i have a zone where it tees to 2 baseboards and the other tee goes to 2 radiators. Last season it all was working just fine. But this season I can’t get the radiator path hot. The piping is deep into a crawlspace so I can post pictures and I’m going off memory. But I think the piping goes to one radiator and the output on that goes to the next.
I opened the vent on one of the radiators and I could start to feel that incoming pipe get hot. So I know at least hot water is getting to the radiator and isn’t blocked. Any suggestions what to try to get to bottom of what causing lack of circulation in this section?
Comments
-
What’s the pressure on the boiler gauge?
Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0 -
You mentioned crawl space , a addition where the heat was tapped into a existing system . You will need to post a diagram of your system ..Correctly trace the pipe work . Confusing ? You mentioned baseboard and radiators ? Two different animals ….It is hard to see from here :)
There was an error rendering this rich post.
1 -
Check the pressure you may be air bound or you gauge could be defective.
0 -
Air in the system or you don't have a pressure difference from input to output of your rads on the same piping circuit. You can accomplish this by closing off a tiny bit to create pressure differential for the rads or base board Depending upon which. Hence water will now start to move and now you heat.
0 -
I opened the vent on one of the radiators
Did you get air…………or water?
0 -
when I vent I get water only and no air…..pressure on main system looks solid where it normally is. Could, the air be downstream of the 2 rads on return line?
0 -
Please give the specific pressure: a generic answer doesn’t help.
Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0 -
gave up trying to debug myself and called plumber….he ventured deep into my crawl space where radiators were located. I always thought they were plumbed in a loop. Turns out the guy who did the install used pex T to split the supply and returns to go to the 2 radiators. Plumber said this ain’t good and if I had it working before I got lucky and it won’t last…picture shows supply coming off main branch with 2 closely spaced tees (which is ok)…but then tees to go to 2 radiators.
0
Categories
- All Categories
- 86.3K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 50 Biomass
- 419 Carbon Monoxide Awareness
- 91 Chimneys & Flues
- 2K Domestic Hot Water
- 5.4K Gas Heating
- 93 Geothermal
- 156 Indoor-Air Quality
- 3.4K Oil Heating
- 59 Pipe Deterioration
- 920 Plumbing
- 6.1K Radiant Heating
- 374 Solar
- 15K Strictly Steam
- 3.3K Thermostats and Controls
- 50 Water Quality
- 40 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements