Separate programmers on Y plan system

[TCCalvin]

I've been considering a Honeywell Evohome controller but I have a Y plan system.

This means I would I need to add the "Hot Water Kit" (which uses a battery operated cylinder thermostat). I don't really want this and I'm happy to run my existing programmer on a regular timed program if possible.

I want the Evohome purely just for the heating as there is just me and my wife in a 4 bed house so we often heat the entire house needlessly (we use all rooms just not at the same time so I cannot just isloate with our current standard TRVs). The heating control with wireless TRVs would be perfect.

My current system is a Gloworm 12HXI controlled by a Grasslin Towerchrom QE2. Would I be able to leave the existing programmer connected to control the hot water and connect the Evohome purely for the radiators?

 

[simond]

Yes.

But the HW kit is excellent, and little more than a decent timer (eg Honeywell ST9100), so you are cutting your nose to spite your face.

 

[TCCalvin]

Yes.

But the HW kit is excellent, and little more than a decent timer (eg Honeywell ST9100), so you are cutting your nose to spite your face.

Thanks for the quick reply. I think I'll go for the Hot Water Kit too then, I just didn't see much of a use for it (aside from seeing the tank temp on the controller).