System boiler and external pump

[billy_smith]

Is it possible to fit an additional pump to a system boiler if the boiler is fitted to a large property with lots of rads.

The boiler in question has a 15-50 I believe and we're looking at fitting a 25-80 also.

Does the internal pump work along side the new pump if so.

 

[Terry lambert]

Yes you can.

Wire the pump live in with the MV CH brown

In series it will increase your head

 

[Dean744PiN5]

this is a case for closely spaced tees

 

[Terry lambert]

Certainly sounds like it

 

[billy_smith]

closely spaced tees ??

 

[Terry lambert]

http://www.caleffi.com/sites/default/files/file/hydraulicseparation-tr07.pdf