Got the keys to our new (rental) house this week so moving stuff in.
It has a new WB Heatslave 25/32 condensing boiler so a pretty hefty model (irritatingly the shower is electric though) but I am a bit confused by the set up.
There are TRVs on all rads except the towel rail in the bathroom.
There is no thermostat anywhere
The controller is on the front of the boiler and seems to be intended for a non-combi boiler.
The other day the boiler just fired up by itself with the heating side of the controller showing off and the hot water side being set to on.
My first thoughts were that it has some kind of small tank inside for instant hot water and when it's left to 'on' it will keep the water in this tank hot. I turned the water side to 'off' and the next day we still get hot water as the boiler is firing up as a combi should.
The instruction book doesn't mention combis at all so I am at a loss to what is going on.
My main concern is how to make the system as efficient as i can without a thermostat? Will it shut down when it detects the flow back to the boiler is too warm - ie if all the room TRVs close off as they are up to temp leaving just the small bathroom towel rail.
Seems to mention there should be a thermostat. Am wondering if the installer left it out as it doesnt seem to have any 'link' lights for a wireless one.