speed fit on secondary return

[sheff paul]

how much was it 15mm and 22mm

about 4 mts of 15mm

 

[SafeGasInstall]

I was asking for the price ?

 

[Gray0689]

I was asking for the price ?

£1.10 a metre

 

[kimbo]

The hotter the pipe gets the less pressure it could take so If you were really unlucky and your pressure reducing valve failed and your thermostat failed I think you could very easily blow the pipe like you see has happened on some heating systems.

 

[Howsie]

its not continuously operated with a timer and a stat you would never run a secondary return 24/7 it'll run at a lower temperature than central heating and probably for the same length of time in the winter

Why not?

 

[Gray0689]

Why not?

Because its not very energy efficient to do so

 

[Howsie]

Because its not very energy efficient to do so

Really depends on the customers requirements. If they have a 24/7 requirement and the pipes are lagged properly then I can't see the problem.

 

[nicro3]

The whole point of having a HWSR is so hot water is instant with no deadleg and waiting, also negates legionella.

 

[Gray0689]

Really depends on the customers requirements. If they have a 24/7 requirement and the pipes are lagged properly then I can't see the problem.

We are talking about a domestic setting
Not commercial or industrial
There won't be a 24/7 requirement so it would be inefficient to have running all the time

 

[Gray0689]

The whole point of having a HWSR is so hot water is instant with no deadleg and waiting, also negates legionella.

Correct but still it don't need to be running 24/7 in domestic