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.