GazChap wrote:
Just had a looo at the Wiser and apparently it’s not compatible with a gravity fed system, which we’re oretty sure ours is.
Not sure why that makes it incompatible to be honest, but perhaps that’s a thing that applies to all of these smart jobbers?
That sounds weird, all it does it tell the boiler on/off and if you get the 2 channel one, the water. If it has a controller now it should be fine.
The earlier iteration of our system was a weird thing with a hot tank heated off the heating circuit, an expansion vessel, and a pair of zone valves and a pump controlled by a Drayton controller so the swap was easy. Worked fine - better tbh as the heating layout is "not entirely competent".
The hot tank was fed from the header tank, as were half the taps, one bog and the white goods, but the controller doesn't care about that.
(the simplification with the new boiler of "no zone valves, pump, hot tank, header tank or expansion vessel, all mains pressure" makes me happy even if it does all need tearing out and redoing, and as mentioned in another thread "mains pressure" is a bit of a grandiose term for what we have)