Rads fed with manifold

[kannit]

Hello,

I am thinking of feeding all rads on the ground floor through manifold and parallel connection.

- Manifold will get supply from 22mm pipes
- Hep2O/Speedfit 15mm pipes from manifold will run in continuous length (under the screeded floor) to each radiator
- Return 15mm pipe from each rad will also run in continuous length back to manifold

Reason for this approach - totally avoid any joint under the screeded floor

Is this a sound design?

P.S. - Work will be carried out by a plumber, not myself. But I just want to ensure that there are no joints under the screeded floor.

 

[gastec]

Hello i have just started fitting full heating systems like this and they work very well, i will probably never fit a flow and return system again.

 

[Ch4 plumbing]

We have started to this on new build properties with the exception of an elbow under the radiator both sides to allow for copper tails, you also need to put the plastic pipe inside another pipe (conduit)so in future if there is a problem with the pipe it can be stripped back and replaced with ease and little disruption to the floor.

- Plumbcenter do the conduit (as do other merchants)

- We use Emmeti manifolds and have never had a problem with them.

Ask your plumber as he will have his own preferred system.

 

[kannit]

We have started to this on new build properties with the exception of an elbow under the radiator both sides to allow for copper tails, you also need to put the plastic pipe inside another pipe (conduit)so in future if there is a problem with the pipe it can be stripped back and replaced with ease and little disruption to the floor.

- Plumbcenter do the conduit (as do other merchants)

- We use Emmeti manifolds and have never had a problem with them.

Ask your plumber as he will have his own preferred system.

Thanks for amazing response.

What kind of joint from copper tail to plastic is better in this design - compression or pushfit? I think the joint will be under the screed where copper tail ends?

Also can please specify which kind of Emmeti manifold can be used? We have TRV at rads and do not intend to use manifold with TRV, just so that both TRV do not conflict with each other.

Thanks

 

[Gasmk1]

This is an old way of installing and was heavily used with micro bore systems I personally find this a good way to install. A system

 

[Gasmk1]

Emetti manifold he may be talking about the underfloor manifolds so you would only need elbows at the radiator end

 

[kannit]

Emetti manifold he may be talking about the underfloor manifolds so you would only need elbows at the radiator end

Well there are 2 kinds in Emmeti manifolds for wall hung radiators:

T2 Topway LS Pre-bum. Heating Manifold

This is bit sophisticated. Only thing I am unsure about this product is that the description says "The integrated electrothermic valves on the return bar allow for electrical control of each circuit with electrothermic actuators wired to room thermostats"

Does this mean that TRV is already fitted on each return line on this manifold? CanI still use the TRVs which are already fitted on the rads? If so, this product seems better.

T1 Topway WHR
This product appears to be a just a simple splitter.

 

[Gasmk1]

It means each run is controlled by its own thermostat its for underfloor really but I suppose you could use it to treat each radiator as a zone and control with a multi channel programmer but that's just getting over technical you just need it to be simple

 

[SmokeyJ]

Get your plumber to make a manifold out of copper? Would most likely be cheaper and just as effective
I wouldn't fit a ufh manifold with the flow regulators if it's just a radiator system (an additional thing to block up over time)
Balance via lockshields as usual.

 

[Ch4 plumbing]

Well there are 2 kinds in Emmeti manifolds for wall hung radiators:

T2 Topway LS Pre-bum. Heating Manifold

This is bit sophisticated. Only thing I am unsure about this product is that the description says "The integrated electrothermic valves on the return bar allow for electrical control of each circuit with electrothermic actuators wired to room thermostats"

Does this mean that TRV is already fitted on each return line on this manifold? CanI still use the TRVs which are already fitted on the rads? If so, this product seems better.

T1 Topway WHR
This product appears to be a just a simple splitter.

We Use T1 Topsan Radiator/sanitary manifolds, they have a simple wheel head on both the flow and return part of the manifold so if you need to change the valves at any time you don't have tom drain the whole system.

 

[Ch4 plumbing]

Thanks for amazing response.

What kind of joint from copper tail to plastic is better in this design - compression or pushfit? I think the joint will be under the screed where copper tail ends?

Also can please specify which kind of Emmeti manifold can be used? We have TRV at rads and do not intend to use manifold with TRV, just so that both TRV do not conflict with each other.

Thanks

Push fit, I don't like to use compression fittings on plastic pipe (although it is allowed I just prefer not too)

 

[Chalked]

We Use T1 Topsan Radiator/sanitary manifolds, they have a simple wheel head on both the flow and return part of the manifold so if you need to change the valves at any time you don't have tom drain the whole system.

Where's the best place to buy these.
Thanks:coolgleamA:

 

[Ch4 plumbing]

Where's the best place to buy these.
Thanks:coolgleamA:

Normally Plumb Center but only because Grahams couldn't get them.

 

[Chalked]

Normally Plumb Center but only because Grahams couldn't get them.

Are they stocked, or do the order them in?

 

[Ch4 plumbing]

Are they stocked, or do the order them in?

Order in mate. couple of days at most.

 

[Worcester]

Emmeti excellent, our clients tend to have larger properties and also as we use emmeti for the ufh, we then combine it with heatmiser neo controls, means that we can have room by room control for the rads as well as the ufh.

So same manifolds emmeti T2 for both ufh and rads, same controls, for connecting to the rads, emmeti have just come out with a radiator tail, so screw that straight into the rad, it has a monobloc connector on it then into an elbow, then straight onto the 16mm emetti pipe with their monobloc connector and we can hide all the pipework in / behind the drylining, or they have a copper connector for the monobloc connector so you can come off in 15mm chrome, no pipework to see and no trv's or lockshields on the rads.

We do that with towel rails as well. see here: http://www.ukplumbersforums.co.uk/plumbing-forum/88884-u-floor-manifold-2.html#post864203