Rad with one valve at bottom, other side connected at top..

[WaterTight]

I believe this used to be done to encourage circulation in an old system that wasn't pumped? I've never seen one done like it before.

I've not visited the job (don't even know where it is yet) but someone sent me photos of a rad they want changed to a floor standing towel rad thingy which would need both connections at the bottom on both sides.

She says it's in a block of flats with communal heating, the type that gets shut off during summer and then all comes back on in Oct or thereabouts.

Is it safe to assume the pipework pre-dates the system or are there still systems in blocks of flats in the country that won't work on a rad that isn't piped with one valve at the bottom and one at the top?

Thanks

 

[ShaunCorbs]

Tboe (top bottom opposite ends)

good practice and gives you maximum efficiency even on pumped system

 

[Scott_D]

Is it a HIU or just a communal boiler heats all flats.
Check you can isolate that flat and not drain all the heating system.
How will you refill? more than likely there will be a pressurisation unit or F&E tank but worth looking.

 

[WaterTight]

Tboe (top bottom opposite ends)

good practice and gives you maximum efficiency even on pumped system

But will it still work fine swapped to a rad that needs to be pipe both at bottom?
[automerge]1599632592[/automerge]

Is it a HIU or just a communal boiler heats all flats.
Check you can isolate that flat and not drain all the heating system.
How will you refill? more than likely there will be a pressurisation unit or F&E tank but worth looking.

Not visited job. She said she'd been told she'd need to have feeds to rad freezed. Doubt I'd be able to look at what the system is without arranging an appointment with some caretaker with some keys or something.

 

[ShaunCorbs]

Yes will be fine swapped

 

[WaterTight]

Cheers.

So if you were piping rads TBOE for efficient circulation which side would be the flow? I'm thinking ....the bottom?

 

[ShaunCorbs]

Top flow bottom return

 

[SimonG]

Not a single pipe system is it?

 

[WaterTight]

She can't afford estimate so non-starter.

Single pipe systems still exist?

 

[Pickwickpick]

Not very many but they do still pop up. Had one couple of years ago, he'd had the bottom two floors repiped when he had a new boiler fitted but not the top floor for some reason. He was DIYing en ensuite and got me in to do the plumbing, as part of it he wanted a towel rad fitting, I used swept tees and pipebent the couple of bends and it worked surprisingly well.