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Yes sorry I meant to say programmer. Pipe B is cold and cylinder thermostat is at 60C yes.

The boiler is going to Dry Fire after every switch off and on most of the times apart from when the rads are on. Btw I usually have CH and HW on constant ON throughout the year which is not very good I suppose.

@CBW Hmm my Drayton termostat is constantly on for HW and off for CH now.

Does it look like the 3 port diverter valve is gone or needs to be bled?

I noticed the pump was running quiet fast at 38W and there was definitely a lot of noise from flowing water. The water itself was luke warm but I suppose that is from the earlier CH flow as the rads were on in toddler's bedroom for 1-2 hours. Definitely not warm warm as it used to be.

I tried running hot water from a downstairs tap for 10 minutes and the B pipe stays cold. No rads are on at the moment.

@CBW Is there anything else I should be checking?

See attached. It looks half full.

Thanks - I am going to check it now.

Thanks for your suggestion. I tried cranking it up on the boiler to no effect.

Hi, I have an open vented system with Cylinder and F&E tank in the loft. I have noticed for about 2 weeks now that the hot water has been gradually getting less hot and currently is only luke warm. I tried raising the thermostat on the cylinder which does not seem to take any effect. I do not...

@Notch7 We would be happy to go with extension and we explored this option in the past but we were not able to confirm whether extension would provide us what we wanted here as we would be over glazing it and going into SAP territory (to get BC sign off) meaning escalating costs. The reason for...

Yeah I am planning to do exactly that but the company wants to meet f2f again (4th time) just to discuss that issue. On another note it seems strange every time we have a small discussion we have to meet f2f and nothing is ever confirmed via email...

Why would building an extension not require big deposit scenario?

Let's say we agree to disagree on this one.

@noseall AFAIK builders usually have their accounts with suppliers so besides the fact they should really have a good cash flow they should not need to take a hefty deposit on the excuse of no cash to purchase some materials to start the work. I agree if there is no way to start the work...

Thanks @ETAF I would really like to know why that is happening. When we asked for extension quotes at the start of 2023 we were given astronomical values for a single storey 4x5m extension with gable roof. The range was between 60-80k + VAT. It did not even have anything special and was shell...

I have also tried to contact traditional builders but nobody seems to be interested in this type of work it seems? Can you share with me how you find some decent companies to quote as I am slowly losing my mind with this?

Interesting. Maybe we are just unlucky contacting mostly such companies. They are usually claiming they cannot provide 10 year warranty if they are not sourcing the materials (which is nonsense in my view but hey). When I actually asked one company if they would work on the labour only basis...

That company that I requested detailed payment plan told me initially a small deposit would be sufficient (that is why I explored more details with them) but after two f2f meetings when we come down to details expect me to pay 50% when materials are delivered (after the initial 35% deposit)...