Over 698,000 strictly plumbing related posts
Plumbing education, information, advice, help and suggestions are provided by some of the most experienced plumbers who wish to "give back" to society. Since 1996 we have been the best online (strictly) PLUMBING advice site. If you have questions about plumbing, toilets, sinks, faucets, drains, sewers, water filters, venting, water heating, showers, pumps, and other strictly PLUMBING related issues then you've come to the right place. Please refrain from asking or discussing legal questions, or pricing, or where to purchase products, or any business issues, or for contractor referrals, or any other questions or issues not specifically related to plumbing. Keep all posts positive and absolutely no advertising. Our site is completely free, without ads or pop-ups and we don't tract you. We absolutely do not sell your personal information. We are made possible by:
Author:
dfarias (NY)
Have a water radiator that doesnt heat up, the pipe that leads into the radiator heats up occasionally but the first fin doesn't get hot let alone the last. I've change the valve at the end and the valve leading into the radiator is open. I actually tried something interesting yesterday and blew air from a compressor into the radiator from the vent valve and this seemed to kick start it and it started to work. However it didnt heat up all the way and today went back to not heating up at all.
|
Post Reply
|
Author:
packy (MA)
i have more questions than answers.
do you get water from the radiator vent?
how do you know the valve at the floor is open?
do you have zone valves?
is your system piped via a monoflo system? (one pipe circling the basement with a set of tees for each radiator)
did this radiator heat last year?
|
Post Reply
|
Author:
hj (AZ)
There are so many possible causes that someone would have to be at the house to do their own tests and evaluation to figure it out.
|
Post Reply
|
Author:
dfarias (NY)
i have more questions than answers.
do you get water from the radiator vent? If i open the vent nothing comes out... its only when i force air in does it seem to kick start it and i start hearing the water grumble but the radiator does not fully heat beyond a couple of fins
how do you know the valve at the floor is open? I took the valve where it connects to radiator off and see that the valve is open.
do you have zone valves? Not sure what that means...
is your system piped via a monoflo system? (one pipe circling the basement with a set of tees for each radiator)house was built in 1922 in NYC, not sure but there are a bunch of pipes that lead up to different radiators in the house, all the other radiators work fine
did this radiator heat last year? it did not but last year it would at least heat up to one fin this year the pipe down stairs below my bedroom leading up to this radiator heats up and it barely makes it up to the valve leading into the radtiator
|
Post Reply
|
Author:
packy (MA)
go no further than my first question...
if no air comes out of the radiator vent, you need to raise the system pressure a few PSI.
there should be an automatic fill valve at the cold water inlet to the boiler.
just how to adjust it depends on the brand.
if you can post a couple of pictures, help is on the way
|
Post Reply
|
Author:
hj (AZ)
Yo do not want the water to "grumble", you want it to flow OUT of the vent. If it doesn't do that then the pressure in the system is too low and the radiator will NEVER heat until you raise the pressure to the point where water DOES come out of the vent. Forcing air IN is the last thing you want to do. That is exactly the OPPOSITE of what you need to do and that can stop other units from heating also.
Edited 1 times.
|
Post Reply
|
Author:
bernabeu (SC)
Unfortunately, you appear to be 'clueless'.
Do NOT change any item in your photos ! Repeat NOT !
There is a combination automatic fill valve/pressure regulator which supplies 'make-up' water to the boiler (or there should be said valve).
Raise the pressure to no more than 22psi (cold boiler) as you also have a safety relief valve set for 30psi and need to maintain a 'buffer'.
If you do not understand this -> STOP and call a plumber
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
|
Post Reply
|
Author:
dfarias (NY)
Could you point me to how to raise the psi?
|
Post Reply
|
Author:
bernabeu (SC)
not really
but
post a pic of what you have
---
note: picture deleted due to possible copyright infringement
==============================================
"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
Edited 2 times.
|
Post Reply
|
Please note:
- Inappropriate messages or blatant advertising will be deleted. We cannot be held responsible for bad or inadequate advice.
- Plbg.com has no control over external content that may be linked to from messages posted here. Please follow external links with caution.
- Plbg.com is strictly for the exchange of plumbing related advice and NOT to ask about pricing/costs, nor where to find a product (try Google), nor how to operate or promote a business, nor for ethics (law) and the like questions.
- Plbg.com is also not a place to ask radiant heating (try HeatingHelp.com), electrical or even general construction type questions. We are exclusively for plumbing questions.
Search for plumbing parts on our sponsor's site:
Special thanks to our sponsor:
|