Grant VortexBlue Oil Boiler

[DiggerDave]

Any adjustment on the cylinder feed for throttling back the flow?

Thanks for this suggestion Simon
Any recommendations for doing this please?
At the moment when the DHW valve is open it's full throttle
In the meantime, I'll adjust the start times to avoid both commencing together....

 

[Brambles]

Digger Dave,

If you calculate the required hot water load and the initial ( early morning ) heat load it will give a reasonable indication as to how the flow rates may be divided. Without wishing to consider for you to spend more money - look at Honeywell Evohome. It’s expensive ( £700+), but is very effective at simply zoning ( up to 12 zones) which makes it easier to optimise a heating / dhw system with a boiler that is slightly undersized.

I use it very effectively on a heating system in an old uninsulated house with a 25kw boiler feeding a 210 litre unvented tank and 18 radiators. The Boiler is (in my view) undersized by 5kw - but Evohome has enabled me to tweak an optimise the system to such an extent that it is now an effective system.

Hope this helps

 

[DaveyHep]

So long as your tank and pipes are well insulated, I would leave HW on all the time.

 

[SimonG]

Thanks for this suggestion Simon
Any recommendations for doing this please?
At the moment when the DHW valve is open it's full throttle
In the meantime, I'll adjust the start times to avoid both commencing together..

Any valve will do the job.