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@mrbrunes Just a further update on this. The Xclusive 36 boiler was installed as scheduled and the end result is a boiler that works as expected and all of the building regs paperwork and warranty has been sent through. While I have no idea how efficient it is compared to the old boiler as...

Sorry for the delay replying to this. We've held out so that the change could be done in the better weather and it's always easier to book an annual service at this time of year rather than in winter. Anyway we've gone for an Xclusive 36 as the DHW specs are similar to the old boiler and we''ve...

The house has two bathrooms and there are two adults and one child in it generally having one or two showers a day each (rarely at the same time) and the usual washing up. The pipework between kitchens and bathrooms is quite short. Based upon the summer and winter bills I'd guess across the...

This is what I'm experiencing as I think our old boiler only goes down to about 10.5kw. My understanding is that it removes the purging before and after the boiler fires which is good which helps a little however it seems that the actual answer is, as with a lot of things, it depends. This has...

The Wiser system is OpenTherm compatible. I also appreciate that there's more to heating than just the boiler however I'd be happy with a 10% - 14% improvement. As for turning the heating up afterwards, that's a separate question :D

Not loads at about £550 to £600 a year but if it makes £60 or £70 a year difference then over 10 years and with not having the the repair costs of the WB then it starts to make more financial sense. I'd spotted that the Xclusive modulated down to about 4kw instead of the 7kw+ of the Eco RF.

@Razor900 Thanks for the info. The extra simplicity, lower cost and extra warranty draws me to the Xclusive. I'm based in Bromsgrove, Worcestershire and have spoken with one of the recommended installers who gave a ballpark of £2K based upon description and I've not heard back from the other...

Thanks for the quick replies and info. I've got a Drayton Wiser thermostat with remote control radiator valves on almost all rads. This system supports opentherm so hopefully that should all work with the Intergas. As it's replacing an existing system where the pipework and waste for condensate...

One more thing is the Intergas Xtreme worth the extra money for a bit more efficiency? Looking at the spec sheet it looks like the Xtreme 30 should provide the same amount of hot water as the Xlcusive 36 (13.5l/min) however the warranty looks to be 7 years not 10 and I'm guessing it's going to...

We currently have a WB 35 CDi RSF ii that is about 13 years old and has given good service but looks like it needs a new diverter valve and possibly heat exchanger which can probably be sorted for somewhere between £200 and £400. My other option is to put the repair costs towards a new boiler...

We have a Worcester Bosch 35 CDI RSF II combi boiler and it's functioned well for years. We have a problem where if a hot tap is running, be it bath, shower or tap and a cold tap runs quickly and is closed abruptly such as by closing the tap quickly or if a washing machine or dishwasher turns...

Well I've just fitted the new capacitor from Maplin and so far it's looking perfect. I've turned the HW and CH on about 30 times and every time the motor spins into life. I'll monitor it and see how it goes over the course of a few days but so far things are looking good. For anyone else...

There is very little resistance when turning the spindle with a screwdriver and it doesn't seem to get tight at any particular spots The other half is going to pick up one of the capacitors on her way back so we'll find out soon.

I can't find an exact match however Maplins have a 2uF 460V capacitor meant for motors for £3.50 so it may be worth a try.

Thanks, that's a very good point. I hadn't thought about just swapping the motor.

Thanks for that, I don't have a problem with the new price and swapping shouldn't be that difficult although there doesn't seem to be much movement in various pipes without removing other items. Can anyone else confirm the likelyhood of the capacitor being at fault as that would be easier to swap?

Actually the Capacitor comes out easily it's a MD MKP 2/400 II Any idea where I can get one of those from?

The pump is a Bosch 59506607 such as this. http://www.directheatingsupplies.co.uk/worcester-87161431080-pump-g-fos-59506607-87161431080 I've only seen the pump not start, once it's running it stays on from what I can see. There is a big capacitor in the plastic box attached to the pump. Does...

If I put a multimeter on the power wires to the pump as soon as there is a demand for CH the wires show 240V and then as you say the pump should run but sometimes it doesn't. When it's not working with 240V to it if I put a screwdriver to the pump and my ear I can hear a high pitch noise and...

With the pump spindle cover removed am I correct in thinking that spindle should always spin when there is a demand for HW or CH? It's not always spinning and when it doesn't is when the pressure goes mad and the boiler cuts out.