radiator questions

stranger12

Hi Guys,

Which side of the radiator does the flow go in ? does it matter at all ?

I have seen the trv valve on both sides of the radiator but understand the valve can be installed on input or output.

second question is, I bought a kudox radiator which came with quite a cheap wall plugs. Basically they used to keep coming off as soon as you tight it enough so it was a no no for a radiator that will have hot water in it.

I have used screwfix fischer wall plug which is sized 8-10 with drill size of 12mm.
Am I correct thinking the wall plug is tight for a 8mm and expands as you screw the bolt in. it is worrying that it can have a slack of 2mm.

http://www.screwfix.com/p/fischer-fischer-sx-nylon-plugs-10-12-x-70mm-20-pack/28011?kpid=28011&cm_mmc=Google-_-Product%20Listing%20Ads-_-Sales%20Tracking-_-sales%20tracking%20url&gclid=CJGe0Z-k888CFYu6Gwodv0kCYQ

finally what are the two holes on top of the radiator for which you plug it with the screws provided, to release air and bleed the air out?

many thanks

Ruski

It doesn't really matter which 'side' you put the trv if you have bi-directional, but I always put the trv on the 'flow' side of the pipework.

Never had a problem with Kudox fixings myself, so not too sure why you are, however - the plugs should be a nice tight fit in the hole you have drilled, and yes the screw/bolt will expand and make secure.

The two 'holes' at the top are for the blanking plug and bleed plug (both supplied in the same bag as the fixings). Put the vent plug on the opposite side to the flow.

HTH

Russ

Jonesya

On flat panel radiators the inlet can normally enter on both sides but double check the instructions as some radiators do need it to flow in on a specific side, the cast iron style radiators can have baffles so inlet must be connected to a specific port.. Also, for flat panel the inlet doesn't have to go in at the bottom, you can have the inlet at the top with outlet on the bottom at the opposite corner.

For TRV check your instructions, most seem to work on inlet or outlet but some need setting depending on which way they're connected.

Yeah wall plugs expand to grip the wall but normally they should be reasonably tight in the hole, if they're too loose then as you drive in the screw the plug can spin in the hole.

Yeah two holes at top, one you plug completely, other has the air-bleed plug, unless you choose to use one as an inlet.

stranger12

many thanks so I can use left or right of radiator to connect the flow to ?

I am re piping my whole house and deciding on position. what is the standard? I am doing all flow on left of the radiator

stranger12

Jonesya wrote: »

On flat panel radiators the inlet can normally enter on both sides but double check the instructions as some radiators do need it to flow in on a specific side, the cast iron style radiators can have baffles so inlet must be connected to a specific port.. Also, for flat panel the inlet doesn't have to go in at the bottom, you can have the inlet at the top with outlet on the bottom at the opposite corner.

For TRV check your instructions, most seem to work on inlet or outlet but some need setting depending on which way they're connected.

Yeah wall plugs expand to grip the wall but normally they should be reasonably tight in the hole, if they're too loose then as you drive in the screw the plug can spin in the hole.

Yeah two holes at top, one you plug completely, other has the air-bleed plug, unless you choose to use one as an inlet.

many thanks
below is what I have it is steel. there is no instruction with it .
there is a a4 paper mentioning how to mount it so take it that means you can have the flow either side?

I recall that paper mentioned earlier had a bullet point mentioning the radiator should be fitted with diverter valve . would that not be your typical valves you buy which is a locksheild plus a trv valve ?
https://www.plumbnation.co.uk/site/kudox-tira-slatted-horizontal-type-22h-radiators/?gclid=CPbXqYq0888CFREUGwodLfwPQQ



Just out of interest, if the bracket is not strong enough and the radiator comes off then would water supply to it be cut or constant ?

I guess boiler will detect this and shutdown ?

I know this won't happen and mine is proper tight but curious on what saftey mechanisms are in place.

FreeBear

I've recently purchased and fitted three of the Kudos radiators to solid brick walls - Not had any problems with the wall plugs. But I generally use a smaller drill size when drilling the holes. For the plugs that came with the radiators, I think it was an 8mm bit I used.

If you are fixing to a stud & plasterboard wall, you must use alternative fixings as per the instruction sheet. As long as the brackets are attached to a wall securely, they are more than strong enough to support the radiator and it will not fall off.