one pipe system - Plumbing Forum | Plumbers Forums

djcraig · 02-03-2008

Hi everyone,

Have any of you guys ever worked on or even heard of a one pipe heating system. By that I mean a heating system that seems only to have one pipe feeding radiators. Not a flow and return, it seems just a flow!
If any of you guys have worked on this type of installation maybe you could help me understand how it works cause I can,t get my head round it.
Water being pushed through both sides of a radiator?
How come?

**uug197h** · 02-03-2008

the one pipe system is an old type if you just want to get your head round it its a loop its go's from the water tank and pumped round the system back to the tank or another way to look at it is like a car the water if pumped round the engine in to the radiator and back round the engine

hope this helps

uug

SARALIEV · 19-03-2008

HI. Yea, this is old system, first rad i CH circle will be hot, but last one will whom, so you lose on each rad some temp. More rad, more loose temp.
1- 65C
2 - 59C
3 - 53C
4 - 48
last one can be 35
better install 2 pipe system if you have chance