Single pipe heating system

[allenvb]

I have been roped into replaceing run of copper on a single pipe heating system. I have not seen the job yet, but would like to know what I am looking at. Is there a way of replacing the length of copper without draining down (like in a vented system of bunging the tank)

Any help would be useful

Thanks

V

 

[Whitespirit66]

Is it a combi or vented system (with tanks in roof & copper cylinder)?

Either way, because you will probably have 2 open end of pipe when you remove the old section of pipe, you will need to drain down. Working on pipe work without draining down requires a vacuam to be formed. This may be difficult in your case.

If in doubt, drain down. Won't take much longer, and may save time/hassle in the long run.

 

[twgas]

you'll have to drain down when you flush so you might as well drain to do work

 

[JPC]

i did not imagine any flushing going on there !

 

[Agile]

You could freeze the two places.

But whats wrong with draining down?

One wonders why a piece of pipe needs to be replaced!

Tony