System boiler with no pump overrun

[Dan Robinson]

There's no point asking Tony. He's talking fantasy garbage. What he says is impossible.
You need someone on site to work out exactly how it is wired now, and what extra wiring is needed. Even if you need a new wire all the way, it can be taken outside near the boiler, up the rear wall and into the roofspace. There's always a way to do it.

That's are such devices, so wind your neck in.

 

[Agile]

It is also possible to make your own using a time delay relay for a lot less and put it in a convenient plastic box.

Tupperware make very good boxes!

Something like this could be used:-

http://www.ebay.co.uk/itm/AC-220V-Delay-Timer-Time-Relay-0-60-Minute-H3Y-2-Base-/150632038708

Tony

 

[stardanny]

Agile, does all new boilers need perm live regardless of pump over run or not?

Daniel.

 

[Dan Robinson]

No.

 

[ALCPlumbing]

The new baxi range of boilers don't require a pump overrun or permanent live but I have never fitted one so can't comment on the quality or reliability of the boiler. Have from people on here that they are ok.

 

[Agile]

Usually the boilers which do not require a pump over run are the heat only type with connections on the top ( so that gravity thermal circulation can occur ). They usually do not have to have a permanent live connection.

But not all makers take the same view. The Vaillant 400 series DO need a pump over run and so need a permanent live.

Many boiler have a frost protection and this requires a permanent live to operate.

Tony

 

[grahamderek]

All such devices need a permanent live.
Same question, where from?

 

[Dan Robinson]

Where do you think?

Use your imagination.

 

[stem]

Ooops posed in error.

 

[grahamderek]

Imagination and electrics do not mix well.
I know there might be a wiring centre which might have a permanent live, but not nescessarilly so.
I know that using a live from any other circuit is not allowed, even though people with imagination often do that.
I know that the first reply was the most relevent.
If you don't want a wire through 3 floors, relocate the pump to the boiler