Search results

We've moved into a house with a Vaillant system installed which I'm starting to lose my head over. Is there any obvious things standing out here as I'm very much a novice. Boiler is a vaillant 618 system, have a unistor cylinder, and I've no idea about what plan this is, aside from two zones...

Hi, we're looking to have an unvented cylinder installed and have been recommended a Unistor (as we have a Vaillant system boiler). I believe that all this can be controlled over e-bus, but I'm unsure what the advantage of this would be? Another recommendation had been an OSO Delta cylinder...

Does anyone have any experience or success of using the VR61 with non-Vaillant thermostats? Not sure if this is possible or not as I realise the norm is to connect a VRC470 & VRC81 for the two zones. As Tado can modulate the boiler over Ebus amongst others now, wondered whether this could be...

Excuse the very naive question, but the pipework in our house has been upgraded to 22mm. I've been looking at a few system boilers and notice on the various Viessmann's they appear to have 22mm connections for flow/return, yet on the Vaillants they appear to be 22mm for flow and return but only...

Hi, I've been speaking with my plumber and also with Viessmann and appear to be getting different answers, so wondered if anyone had any thoughts. Looking at the Viessmann 200 system range, the modulation range for the 26kw and the 35kw appear quite different, with them both going down to the...

I'd appreciate any help with the following, though realise it's limited info. We have a small utility room, and are upgrading our boiler. We're thinking of going for either a large combi storage (Viessmann 222) or potentially a system/unvented cylinder approach. The question is, is anyone...

We're currently in the midst of a complete refit of our house, extending into loft and ending up with three bathrooms. As we used to have a vailant combi which struggled when more than one tap was run, we've decided to go for a system boiler. And once I started researching thermostats, system...