New builds zone valves on combi

[Murdoch]

That was only boiler plus wasn't it?

not sure tbh - I'm a spark and I thought the changes included the controls and other bits !

 

[Chuck]

Hi everyone, if anybody is out there that can give a little help would be great. I’m going from domestic plumbing into house bashing end of the month now I’ve been told the heating on new builds is zoned off even on combi boilers. Could anybody just shine some light on how to pipe this system up. The zone valves would be in a cupboard upstairs. Thanks.

Do you have any qualifications as a heating engineer? The fact you don't seem to be familar with the current Building Regulations and are asking an internet forum such a general question means you are taking on a big risk by also trying to design the system yourself. Your contract from the developer should include a detailed specification of the work they want done, including a drawing of pipe sizes and runs, methods and materials statements, etc. You need to check this against current regs and query anything that doesn't seem right to you.

 

[Ricardo Napoli]

Do you have any qualifications as a heating engineer? The fact you don't seem to be familar with the current Building Regulations and are asking an internet forum such a general question means you are taking on a big risk by also trying to design the system yourself. Your contract from the developer should include a detailed specification of the work they want done, including a drawing of pipe sizes and runs, methods and materials statements, etc. You need to check this against current regs and query anything that doesn't seem right to you.

Hi thanks for the reply, I’ve been plumbing for 6 years with a company doing general plumbing underfloor heating and one off new builds just want to try out site work for something different. I haven’t had any drawings as yet as I haven’t started yet was just asking about to see what it’s like. Thanks

 

[Harvest Fields]

L

That's 2010 @bogrodder, they changed it in 2014

if controlled by the same controller what’s the point of the zones?(future extensions maybe?)

 

[Aire]

L

if controlled by the same controller what’s the point of the zones?(future extensions maybe?)

Same controller but 2 thermostats, so the heating came on upstairs and downstairs at the same time but controllable at 2 different temp settings

 

[Harvest Fields]

This is part of why I don’t do house bashing!

 

[Ricardo Napoli]

Also at £2.37 per point is what they are paying on price work.

 

[chris watkins]

https://assets.publishing.service.g.../attachment_data/file/697525/DBSCG_secure.pdf
Rather than referring to manufacturers guides etc. We should be going to the Guide that is produced & kept up to date, to highlight what is required to be Part L compliant, cross different fuels & if it is new build or replacement.
Table 3, page 18 if Gas fired wet = >150M2, 2 zones required to have independent time & temperature control. The philosophy being the sleeping areas can be turned off or down during the day even if the living areas are occupied giving an saving.

 

[Tea-Break]

My understanding of Part L, is as Craig said.
Below 150 (2 zones Htg & H.Wtr) above 150 (min. 3 zones 2 Htg 1 H.Wtr)
Boiler Plus is for Combi installs.
I note the FAQ from bogrodder is from Honeywell.

 

[Sharp Point]

That's 2010 @bogrodder, they changed it in 2014

If you’re right Craig, that **** architect cost me lots of money and time in unnecessary work.

But even the BCO said the houses had to be zoned.