Radiator in new extension won't get hot.

[0redrum0]

Hi,
hoping someone can help out here. I have just had a single storey extension built size 5x4m and we've had one rad installed. The radiator only gets slightly warm on the left hand side. I've had the plumber back round and he suggested turning all the other rads off to get the flow forced through this one rad but that makes the rad go totally cold. He teed his flow and return into the flow and return directly off the boiler. He's now suggesting boiler might not be man enough but I'm not buying that explanation. It just seems that the water doesn't want to flow in that direction.
the boiler is in the garage and the pipe lengths to and from this rad are approx 6 m. Any advice appreciated.

 

[Dotty]

Balancing, balancing, balancing......

 

[Centralheatking]

No way its the boiler being too small - as above do what Mr Crop says but if you have a TRV
on the rad it might be stuck even if new - undo trv head tap pin and see what happens CHK

 

[Mike Jackson]

Hi,
hoping someone can help out here. I have just had a single storey extension built size 5x4m and we've had one rad installed. The radiator only gets slightly warm on the left hand side. I've had the plumber back round and he suggested turning all the other rads off to get the flow forced through this one rad but that makes the rad go totally cold. He teed his flow and return into the flow and return directly off the boiler. He's now suggesting boiler might not be man enough but I'm not buying that explanation. It just seems that the water doesn't want to flow in that direction.
the boiler is in the garage and the pipe lengths to and from this rad are approx 6 m. Any advice appreciated.

The highlighted part is ringing warning bells for me. What sort of boiler is it? Do you have an airing cupboard with a pump and other controls?

 

[0redrum0]

The highlighted part is ringing warning bells for me. What sort of boiler is it? Do you have an airing cupboard with a pump and other controls?

Hi, thanks for reply. It's an ideal SE18FF 6 yrs old it was installed when house was originally built 6 yrs ago. The pump is upstairs in the airing cupboard. Where the 2 copper pipes come out and return to the top of boiler he has teed into each of these with white plastic pipe. These then run down the back wall of the garage about 6 feet long go through the wall and into the new ext. they run under the floor about 4m to the rad.

 

[mountainman]

Oh dear!
Get yourself a proper plumber is my advice.

 

[0redrum0]

The highlighted part is ringing warning bells for me. What sort of boiler is it? Do you have an airing cupboard with a pump and other controls?

Hi
its an ideal SE18FF. New when house built 6 yrs ago. The boiler is in the garage which the new ext backs onto. Where the 2 copper pipes come out of the top of the boiler he has teed white plastic pipe into of these, I assume flow and return to boiler. These pipes then turn 90 deg run vertically down inside wall of the garage about 6 ft in length go through the wall into ext and run under the concrete floor about 4 m to the rad. We have an airing cupboard on the 1 st floor and the CH pump is in there.

thanks

 

[village idiot]

very impressed.
Get someone else in

 

[0redrum0]

photo of how hes teed into boiler in garage

 

[Chalked]

If he has connected in at the boiler this will only work if its a system boiler, combi, or the pump is sited at the boiler.
do you know where the pump is?

 

[Centralheatking]

Go on tell us more - we can help you - diagrams and pics help - this is a nice thread to my mind CHK

The highlighted part is ringing warning bells for me. What sort of boiler is it? Do you have an airing cupboard with a pump and other controls?

 

[village idiot]

Go on tell us more - we can help you - diagrams and pics help - this is a nice thread to my mind CHK

A picture tells a thousand stories. Post the pics lets see exactly what he has done

 

[Centralheatking]

If you have been down to the Croppies Arms for 2 hours how are you balencing ? CHK

Balancing, balancing, balancing......

 

[Mike Jackson]

The OP has Pmed me with the following.

Hi thanks for replying to my thread, I've tried to respond a few times but it won't post, it keeps saying waiting for moderate to approve, maybe cos I'm new???
anyway the boiler is an ideal classic SE18 FF I've looked it up and it says conventional boiler.
we have an airing cupboard upstairs which contains a hot water cylinder and the CH pump is in there. I have a photo but my ipad won't let me upload it on here.

What I suspected is true and the feeds to the rad have been taken off the primaries before the pump. The feeds to the rad need to be taken from the heating circuit after the pump. It will never work in the current configuration. I would suggest time to request a refund from the original "plumber" and get someone in that knows what they are doing.

 

[AWheating]

im guessing the "plumber" was recommended by the builder?