Fitting all radiators

[StubMandrel]

Two years ago we had a combi boiler and a single radiator fitted, with the plan of replacing all our storage heaters with radiators in time.

The time is approaching, and I'd like to fit all the radiators myself. I have done a fair bit of plumbing and recently discovered speedfit and used it for completely replumbing our bathroom.

I assume that it's no different to fitting one extra radiator except that its more work and I need to consider how the pipework balances the flow.

The rad we have is on 15mm pipe reduced from 22mm.

Should I tee off from the 22mm pipe with two more 22mm pipes and take these into the first floor (the logical route) then split into two 15mm pipes for roughly half the radiators each?

I want to make the job as easy as possible, do I need much more than:

Radiators
Pipe
Speedfit t's and elbows
Pair of TRVs + Ordinary valves for each radiator
Fernox

Pipes clips & other fixings.

Would plastic or copper pipe be best? Plastic appeals as I have to navigate some 'interesting" routes where a straight run of copper will be challenging.

Finally we have a Main condensing combi boiler - how easy is it to fit a remote thermostat kit instead of the timer?

TIA

Neil

 

[oldbuffer]

Sounds like the right approach.

Try and have no more than 6Kw of radiators on a run of 15mm.
Make sure you use barrier pipe if going plastic. Otherwise you'll end up with oxygen in the system rotting things.
You probably already know it, but don't forget the pipe inserts for the plastic.
If your coming up from the floor to the radiator tails, copper looks much better (in my opinion) than plastic.

Good luck

 

[bazdaman]

http://www.directheatingsupplies.co...spx?agid=586&gclid=CPXlq8XA-bwCFSn4wgodCxgAWg

That would be the easiest remote stat you would not need anything else.

Although i would prefer this

http://www.directheatingsupplies.co...mmable-Room-Thermostat-CMT927A1049-CM927.aspx

Better quality and more feature, you would just need to wire it in next to boilr

 

[StubMandrel]

To my shame I didn't know about plastic inserts or barrier pipe!

The thermostat links are useful too.

I was just going to buy the high-temp 'suitable for central heating' fittings and pipe.

Thanks

Neil

 

[bazdaman]

I would add inserts to ur bathroom then before u have multiple showers!

 

[StubMandrel]

LOL! Used copper for the bathroom, plastic would have let me leave out ten elbows to get from downstairs loo, through first floor loft into bathroom. Long story...

Neil