SIngle pipe system?

[no12rugby]

In the new year plan to rip out my old back boiler and replace with a combi to allow removal of airing cupboard etc in small bathroom as am having this done as well. When plumber looked round he recommended changing all pipework to rads as it is on a single pipe system and change to a 2 pipe system. Is this a good idea?

Any thoughts?

 

[Bahco]

Correct me if I am wrong but you won't be able to run a combi with a single pipe system as it needs a flow and return.

Excellent idea to rip out old pipework. You will have a clean system and one pipes are not very efficient too.

 

[PEDANTICVINDICTIVEMAN]

Absolute bolllokkks, I have fitted loads of combis on a single pipe system and with thermostatic valves so dont let anyone tell you cant fit them either.

 

[Bahco]

I've learned something new.

How would a single pipe system be fitted to a boiler?

 

[Gasman1015]

Flow and return and one large circle.

 

[Softus]

I've learned something new.

How would a single pipe system be fitted to a boiler?

Single pipe refers to the connection at the rads, not the boiler.

Think about it - the hot water flows from the boiler, and cooler water returns. It's a closed circuit, so the words "flow" and "return" are just nomenclature - the return is the same pipe as the flow.

In most domestic systems each radiator is teed onto both flow and return; in a single pipe system each rad is teed twice into the same pipe.

 

[kevplumb]

Absolute bolllokkks, I have fitted loads of combis on a single pipe system and with thermostatic valves so dont let anyone tell you cant fit them either.

don't you just love im

 

[Softus]

don't you just love im

I think I do, but I wouldn't be prepared to have his babies...

 

[PEDANTICVINDICTIVEMAN]

Yea my babies now grown up can be a real pain, cost me a fortune, one of em's down to a faulty diagfram, seems ironic, bit of crap rubber can be so costly in so many ways not just on boilers.

 

[Nige F]

I've learned something new.

How would a single pipe system be fitted to a boiler?

Seeing as it`s near Christmas.....when you`re in Church, check out the victorian gravity systems and column rads...........fascinating yet inefective