Adding a Rad right next to another. Can I do it in Series??

[manwithmission]

Hi

We've extended the Bathroom. Between the old & new part there is a Pier. I want to add another Rad, which will be side by side with the first, just separated by this pier. Only 2 feet apart (or 4 feet to centres).

Question is, can I plumb the new Rad in Series with the 1st, IE take the return from Rad 1 into Flow of Rad 2, then return from Rad 2 ?

Would this be any different from a Big radiator???

I can get the floorboards up & take a new feed off if I have to, but this would be a lot easier, as long as it's OK.


Thanks

 

[Diyisfun]

It would act like 1 big rad, probably need to rebalance the system.

 

[Agile]

If the rads are smaller, say less than a metre long, then it will not be too bad if the pipework is in 15 mm.

Tony

 

[manwithmission]

It would act like 1 big rad, probably need to rebalance the system.

Thanks

How do I re-balance? Might be stepping over my limit here.


thanks

 

[Hugh Jaleak]

Balancing is pretty straightforward, see FAQ's, number 2.

 

[D_Hailsham]

I can get the floorboards up & take a new feed off if I have to, but this would be a lot easier, as long as it's OK.

Connecting the two rads in series might be easier - i.e lazier; but connecting in parallel in the correct thing to do. In any case balancing rads in series will be difficult as the return temperature of the first is the flow temp of the second, so neither rad will produce their advertised output.

 

[manwithmission]

Thanks chaps

Just taking a closer look, putting in T's for the new Rad might be tricky.

The existing Rad is T'd off 22mm with unequal T's (22mm through with 15mm coming off) this is then immediately reduced to 8mm. If I sweat out the 8mm reducer & branch off in 15mm instead, can I then run that 15mm to Rad 2, taking off 8mm T's to Rad one???


Will that do?

 

[John506]

I would cut just before 15mm - 8mm reducer, then run everything in 15mm.

Buy a new 15mm TRV & Lockshield for the original rad and remove the 8mm one.

 

[Agile]

If the rads are smaller, say less than a metre long, then it will not be too bad if the pipework is in 15 mm.Tony

Funny how the important details seem to get left off!

However, I somehow guessed there might be a problem!

Never put rads in series if there is any 8 mm tube!

Its not a very good idea if its 10 mm either!

Tony

 

[manwithmission]

Sorry guys, I must correct myself. It is 10mm, NOT 8mm

So can I 'T' into the 10mm or should I make new branches off the 22mm?


Thanks again!