DIY Project To Zone My House

[leethegasman]

Good evening

Just purchased Automatic by-pass valve Honeywell DU145

Now looking for 50M of JG Speedfit Layflat polybutylene pipe coil 22mm

Phase 1 is to install a common return that captures all rads.

I will be installing this first as it will not affect any of the current setup

estimated install time including drain and connect to all radiators 2 days

Day 1

Clear Space ( General )
Make plan of layout path for new pipe work once all space is made available.
Lay single floor boards down the length of the loft across rafters to give flat base for the pipe to lay on
Install many clips and clip pipe work in.


Day 2

Drain system,
Remove all current copper and plastic pipe that is currently associated to the return only.
Connect all return pipes from radiators back into the new run of 22m Pipework
Fit bypass valve
Refill and test.

I will keep you updated.

Regards
Richard

Common return ?

 

[Howsie]

Thank you I have worked hard on it

Would anyone like to see 1 pic of the start of the extention

Did I miss them?

 

[Koogatubac]

Common return ?

Common return - normally referred as primary return, all rads return pipes are teed onto

 

[SimonG]

I see the forecast is for a cold snap.

 

[leethegasman]

Common return - normally referred as primary return, all rads return pipes are teed onto

When I did muti zones on houses eg zone up rads zone down rads I used to follow drawings installing flow and ret for up zone then flow and ret for down zone never had any problems , the lads that used to install flow for up zone flow for down zone and one common return (to save time as one less pipe installed )used to have complaints of radiators getting hot when they should not be.(three tee rule)

 

[TBServices]

When I did muti zones on houses eg zone up rads zone down rads I used to follow drawings installing flow and ret for up zone then flow and ret for down zone never had any problems , the lads that used to install flow for up zone flow for down zone and one common return (to save time as one less pipe installed )used to have complaints of radiators getting hot when they should not be.(three tee rule)

I had to modify an entire estate of houses with a common return to prevent back flow issues after some other plumber bodged the jobs badly.

 

[AWheating]

make sure your clips give you 20-25mm of height to get the lagging on, cable tie the lagging around the fittings to keep it from popin off.

tek sum pictures so we can see how your getting on.

 

[Dannyparty92]

What's the three tee rule? Surly it's not only three cups of tea a day that's mad! But seriously I would like to know .

 

[TBServices]

What's the three tee rule? Surly it's not only three cups of tea a day that's mad! But seriously I would like to know .

You should always tee separate zone returns into a common return close to boiler, rather than having rads with separate flows but a single return. The cylinder should always be the last return to enter boiler.

 

[Dannyparty92]

Thanks TB.