Column radiator not getting hot

[Paul hayes]

I’m after some advice, I’ve a combi boiler heating up 8 radiators and I’ve replaced one with a large column radiator, it’s being fed buy 10mm microbore, it gets warm but doesn’t get as hot as the feed pipes, the radiator heats up fine, no cold spots, all the rest of the radiators in the house get hot, the radiator is 350 /1800mm double panel, I’m considering putting the feed in the top corner so the water has to flow all the way through, the other options I’ve considered is replumbing with 15 mm at the bottom to get more flow, anyone got any advice before I start altering it
Cheers

 

[Jamie Liffen]

thats a big radiator for 10mm pipes. is that the only radiator on the pipe drop? system may need balancing to push more flow to this rad.
is this radiator the furthest from the boiler ? dont bother increasing the pipes to 15mm its pointless for the amount of pipe showing.

 

[Scott_D]

Is it directional?

 

[Paul hayes]

thats a big radiator for 10mm pipes. is that the only radiator on the pipe drop? system may need balancing to push more flow to this rad.
is this radiator the furthest from the boiler ? dont bother increasing the pipes to 15mm its pointless for the amount of pipe showing.

The pipes are reduced above the radiator so if it was replumbed it would be fed from above connected to 15mm pipes where it reduces down to the 10mm

 

[Paul hayes]

Is it directional?

What do you mean directional

 

[Scott_D]

Flow should go in one side and out the other
Some have a spreader tube to direct the water to the top

 

[Chewitt]

Check the installation instructions. A lot of vertical radiators have a baffle fitted, the radiator maybe upside down.
I sell radiators and it is a common mistake.
There may have been a coloured sticker to indicate the bottom of the rad.

 

[Paul hayes]

How can you tell it’s upside down, it’s been fitted over a yr

 

[townfanjon]

What do you mean directional

Some are , some aren't, in my experience the expensive ones are bidirectional, usually have a sticker saying F and R

 

[Deleted member 96286]

Too big for 10mm. Water will take the easiest route and it isn't wanting to climb up that mountain and back down again.

 

[Paul hayes]

How can you tell it’s upside down, it’s been fitted over a yr

Some are , some aren't, in my experience the expensive ones are bidirectional, usually have a sticker saying F and R

have been on best heating website who we bought it off, and read fitting instructions and it doesn’t mention anything about which way up or round to fit it.

 

[Paul hayes]

Too big for 10mm. Water will take the easiest route and it isn't wanting to climb up that mountain and back down again.

Think it’s going to have the feed to the top and return at the bottom to force the water through it

 

[townfanjon]

have been on best heating website who we bought it off, and read fitting instructions and it doesn’t mention anything about which way up or round to fit it.

I daren’t ask , Victorian plumbing , please say no

 

[Paul hayes]

I daren’t ask , Victorian plumbing , please say no

No, new central heating system fitted by my father, microbore is fed off the pipes upstairs, and chopped into the walls, it’s a modern system

 

[townfanjon]

No, new central heating system fitted by my father, microbore is fed off the pipes upstairs, and chopped into the walls, it’s a modern system

No wheres the rad from

 

[Paul hayes]

Best heating

 

[Chewitt]

Barlo/Quinn rads check there installation instructions for a Slieve vertical.
I supplied some to a site last year and they had fitted 2 of them upside down, the panels were not heating up they were just warm. I suggested they refitted and they then worked perfectly.
Try emailing the supplier and asking, unfortunately most Internet sites are selling a box and have no clue how to install. Also most imported rads have very poor instructions.
You may also have needed to fit a plastic insert as it is a double radiator, some manufacturers supply them to make sure that the flow and return do not mix in the bottom of the rad.

 

[Ben-gee]

As Chewitt says. I have fitted one of these and it comes with a hard nylon disc you have to insert into the bottom rail before you fit the rad valve tails. From memory it goes two sections over from the flow side (you can choose which side that is to suit your plumbing), this then forces the flow up through the rad and stops it short circuiting straight out of the return.

 

[Gasmk1]

some have a little dimple on the the feed section indicating that thats the feed/bottom