Is a Low loss header essential

[Deleted member 56158]

Worcester will recommend fitting a llh, we've done several banked systems, it stops cycling, also Worcester will recommend you alternate the boiler thermostats annually.

 

[harrygashull]

Heres some pics of the install if anyone is interested, at the bottom of the thread:-

http://www.ukplumbersforums.co.uk/c...two-boiler-install-prv-location-pictures.html

 

[Worcester]

if no llh (even with one) reverse return or Tichelmann would have been sensible also.

 

[ShaunCorbs]

Tichelmann

thats where you go to the furthest rad first and t off from there and work your way back ?

 

[Worcester]

We use it with cascaded boilers and heatpumps and cascaded buffers. (Both on the collector and emitter sides of cascaded heat pumps)

When you one have a single circulation pump as per this installation it ensures flow goes through each of the boilers equally.


Though it may also be used in heating distribution systems for similar reasons. (Makes 'balancing' a whole lot easier 🙂 )
http://uk.grundfos.com/service-support/encyclopedia-search/tichelmann-system.html

 

[ShaunCorbs]

We use it with cascaded boilers and heatpumps and cascaded buffers. (Both on the collector and emitter sides of cascaded heat pumps)

When you one have a single circulation pump as per this installation it ensures flow goes through each of the boilers equally.


Though it may also be used in heating distribution systems for similar reasons. (Makes 'balancing' a whole lot easier 🙂 )
Tichelmann system | Grundfos

yea thats it sorry was suppose to say on the return