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Thank you. I've attached some photos.

I've checked the schedule/program and it is off completely. So if it should only heat water when programmed and the program is off, does that mean there's a fault somewhere?

We have a Vaillant EcoTec 630 System boiler which appears to be heating water automatically. I've noticed that the water is always hot, even when we haven't switched it on but we were away last week so it wasn't switched on at all yet the water was hot when we got home and according to our...

I bloody hope so otherwise it's going to cost a fortune. How would we check? The switch is definitely off, I know that much.

Will give that a try later and report back. Thank you.

More photos . . .

The electric switch for the immersion heater is off. The thermostat attached to the cylinder was on 59 degrees but we turned it down to 40. The hot water has not been switched on or programmed on since Wednesday. That's why we can't understand why it is still so ridiculously hot. The heating has...

No idea. The immersion heater is definitely off though.

We have a new Vaillant EcoTec 630 System boiler. There was some issue with the hot water control when it was fitted but I'm not sure what. So that we had hot water, the engineer switched the immersion heater on. It was on for approx 4 hours. The following day, the control issue was apparently...

I've had lots of useful advice on here before and I'm now hoping for a bit more. :giggle: We're currently in the process of getting quotes to replace our system boiler. Somebody suggested we should get a boiler capable of hot water priority that could keep the boiler in condensing mode most of...

They all seem to have said the same thing in that they do a quick measurements initially to determine what's needed. They then do full calculations and list radiator sizes etc once you've accepted the quote so it's difficult to know which one to choose. I think they're all decent companies with...

So based on some of the advice on here, I've now got a third quote in and this time I asked for hot water priority. I'm sort of back to square one in not understanding the technical side of things and therefore not knowing which company to go with. This third quote is cheaper than the previous 2...

They both checked the water pressure from the outside tap and said it was OK. Is that what you mean? With our current system (header tank in the loft), the pressure downstairs is OK but it's not so good upstairs, especially in one of the bathrooms. We were under the impression that a new...

I think we're erring towards the company offering the Vaillant Ecotec Plus but I'd like to understand the implications of having a boiler that's potentially too big. Can anyone please advise? Thanks.

I don't actually know. I guess it might relate to the fact we were considering moving the boiler upstairs. It's currently downstairs. No idea what type of pipes we currently have. I know they're copper - that's all.

OK thanks. So if it turned out that the 24kW and 30kW boilers quoted for are too big, what implications would that have? More expensive initially or more expensive running costs or something else?

Yes, they've done heat loss calculations. It's quite a big house, very old and we have an open fireplace.

Is there a kind person out there who can help me understand if these 2 quotes are comparable? One seems much longer than the other but with my practically non-existent technical knowledge, they both seem to be saying more or less the same thing. In a nutshell, is one offering more than the other...

I've no idea about the technical side of things but it's an old farmhouse and is pretty big so I'm sure the heat loss is probably quite high.

I don't actually know which Vaillant boiler as the quote/estimate didn't specify. He said he would come back to do an exact heat loss calculation. The firm that quoted the 24kW Worcester did carry out a basic heat loss calculation yes. Both companies are local and reputable so I'm sure they...