Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Jun 17, 2012
122
8
18
Morning guys,

I went to my mums yesterday and she commented that the radiator in the hallway was cold, so I offered to have a look.

She has recently had an extension built onto the front of the house with 2 new radiators and a heated towel rail, she originally had a massive double radiator in the hallway, which has been replaced with a smaller one, which is the one that's cold.

She said that the radiator in question worked when it was installed, but since the weathers got colder its stopped, I asked her if the plumber balanced the system and she thinks he did.

As the radiator is in the hallway along with the room stat, it doesn't have a TRV. I made sure it was turned on, and then fully opened the lockshield, still nothing (we believe this is the last radiator on the system) I then turned off the other new radiators and towel rail and the flow pipe got mildly warm but not nowhere near hot, so I went and turned the pump from 2 to 3 and suddenly the rad got hot, so I turned all the others back on and it stayed hot!

So the question is, have I resolved the problem, or is turning up the pump speed just covering up for something else and should she still call back the plumber?

Many thanks,
Carl.
 
isnt balanced correctly!
leaving pump on three can be ok depending on how its piped though it could pump over or drag air in. a pump should be set to the lowest setting at which the system works but should ideally not be used to compensate for an unbalanced system
 
It is an old school gravity hot water, pumped heating system with 9 radiators and a heated towel rail. Would the whole system need to be rebalanced or just the new additions?
 

Official Sponsors of Plumbers Talk

Similar plumbing topics

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.