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Your not the only one that does warranty work for manufacturers i do aswell. And what your saying is if the boiler as been installed and it dont meet the manufacturers instructions thats ok. Well that may be for your work but not mine, and the manufacturers i do work for Have refused warranty...

because you quoted anyone can buy the forms from oftec. so my answer was anyone can buy a gas valve

Yes thats true you can do that. Iv'e also fitted a megaflow to a combi which i left to feed 1 tap in kitchen and the megaflow to feed the 2 bathrooms ( It just cost more to install and more on parts )

anyone can go and buy a gas valves for a gas boiler ??? ( but can they fit it) no

That may well be true i was just going by what the potterton sale rep told me. And yes i have visited potterton and they did say they did buy the powermax. I must descale 20 powermax boilers a year because of the hard water area but don't replace that many mixer valves just a few a year

yeah thats right heateam don't do scale and BG don't either. These boilers are around 15yrs old and we do lots of the descales up here :lol:

you run 10mm from a manifold and it depends on the load your taking. What load do you have off the 15mm already. You get about 11,000btus of 15mm so depends on load you already got and want to put onto it

where i live there is a whole est with powermax 155 and they need to be descaled about every 18 months to 2 years. But i will say if you don't descale them correctly it will only last about 3 months. you need to keep the ds3 going for a few hours for a good clean. These boilers are potterton but...

I would have said the same thing because you never had to be anything to work on oil. THIS IS BECAUSE NO-ONE HAS EVER DIED THROUGH OIL LIKE THEY HAVE GAS. But when i had my last inspection he told me that it HAD change and you need to be oftec and when i last did my last course the college said...

you cant have a combi with a gledhill as they are thermal store. Your have a condensing boiler then a gledhill which will work off mains water. The small tank in the loft just tops up the thermal store which does your heating. Turn off your mains water and the water from your hot and cold taps...

You can have a new boiler but why would you if you don't have to. Even if you can't get the parts for the burn you can still have a new burner fitted and oil runs high on efficiency anyway. But if you still fancy a new boiler fit grant by a oftec engineer

Grants good but you need a oftec engineer as your system WILL need to be change and sign off and notification sent

Hi why would you put a tank in the loft to feed a oil combi boiler all combi boilers work off mains water

Hi You will more lightly find the coil is scaled up and will need to be descaled. As the thermal store hot water heats your hot water supply this is the fastest way to make scale which the powermax does very well. when you are descaling the coil you can put the old mixer valve in the ds3 to...