Low loss header

[Gazb]

Hello to all this is my first post so go easy on me!
I have a customer with an existing heating system with 2 vaillant ecotec plus 624 system boilers, there is a radiator circuit UHF manifold for ground floor and a 300ltr unvented cylinder.i propose to add a low loss header to the system as recommended by vaillant technical due to circulation problems . I know vaillant do there own headers but would like to make my own ,but have never fitted one let alone made one" but with a bit of help I'm sure I'm up to the task.
I would like to know how to size the header where to put the flow and return ports in and out and can the header go horizontal instead of vertical?also would a pump be required on the flow to the rad circuits ? Any help would be great a diagram would be useful a sketch will do thanks gazb

 

[Subby]

hi gazb. each circuit will require a pump fitted after the tee on the flow. I can knock you up a diagram, but it won't be until Thursday evening, bit busy like.

 

[chris watkins]

Hi & welcome
I think that it is not cost effective to build your own, I have used these in the passed, good value & helpful you get to choose cons & being copper, no large MI's required.
Win win & win.

V A Heating Ltd home page

 

[lame plumber]

i think on my first I'd buy one and follow the instructions, just me though.

 

[missplumb]

VA heating are the kiddies, we use them for all our LLH. Excellent service, they even drove 3 hours each way from stoke to darlington just to deliver ours so we could have it first thing rather than wait for TNT, cant do better than that:hurray:

 

[Ermintrude]

Use a nice bit of 4" box . Flow and return 500mm cts on one side circs 750 cts and getting further apart on other side? 1/2" top and bottom for Aav and doc

 

[josh]

Also had a smaller one from VA heating, would reccomend aswell.

 

[chris watkins]

Also had a smaller one from VA heating, would reccomend aswell.

Did you like the presentation wooden box it came in Josh ?

 

[missplumb]

this is how ours came ...... tied onto a Navarra

 

[josh]

Did you like the presentation wooden box it came in Josh ?

Thought that was the best bit, and all them millions of foam bits that blew out everywhere! Lol

 

[Sharp Point]

Thought that was the best bit, and all them millions of foam bits that blew out everywhere! Lol

Can somebody enlighten me on ' low loss headers' i love knowledge i do.

 

[chris watkins]

Thought that was the best bit, and all them millions of foam bits that blew out everywhere! Lol

I thought mine came packed in a box full of Cheeze Wotsit's until I had eaten 3 handfuls.
Box was good for mixing up sand & cement.

 

[chris watkins]

Can somebody enlighten me on ' low loss headers' i love knowledge i do.

Header basics
All will be reviled read this page & look at the animation at the bottom.
Only thing you need to remember is that you will still need circulators on each of the secondary flows but they will be a lot smaller because the high friction loss boiler has been dealt with.

 

[MC_Bob]

What sort of money are these? I need a basic 150kw header with 6x1"1/2 ports, not sure whether to tig weld a steel one.
I tried ringing the company above but they close early on Fridays... Thanks.

 

[missplumb]

depending on the size of the header but i would think a couple of hundred quid, their prices are really reasonable.

 

[goz666]

A pal has one in his garage, but Vodka comes out of his 😛arty: