W1ghty
MB Enthusiast
Hi Folks ,
I am thinking about changing the boiler from a pressurised central heating system with roof tank and hot water cylinder .
There is a chance I might have a roof extension in the next couple of years and the stairway to the roof will go through the airing cupboard and because it would be handy not to have the cold water roof tank in the roof , so I’m looking at Combi boilers . (I will be getting a corgi guy in to fit the boiler )
My current 20 year old Vaillant boiler is 24kw and a lot of the new Combi’s seem to be in the 24-30kw range so there isn’t any issues there .
My question is regarding the supply of hot water from the new Combi to the existing system . When I strip out the copper tank and roof tank myself (I’m fairly competent and want to save what money i can ) , I’ll alter the pipe work to the bath to 15mm down from 22mm and do what I can to alter existing hot water pipes so there aren’t any long dead legs or very long routes for the HW to travel from the new Combi .
The boiler will be sited in the downstairs toilet , there is a hand sink next to it with 15mm hot supply to the tap , so finally the question to the experts is can the new boiler supply hot water to this pipe as it’s only a couple of feet away ?? Or am I missing something because it sounds to easy and we all know there’s no such thing with DIY projects .
Thanks
I am thinking about changing the boiler from a pressurised central heating system with roof tank and hot water cylinder .
There is a chance I might have a roof extension in the next couple of years and the stairway to the roof will go through the airing cupboard and because it would be handy not to have the cold water roof tank in the roof , so I’m looking at Combi boilers . (I will be getting a corgi guy in to fit the boiler )
My current 20 year old Vaillant boiler is 24kw and a lot of the new Combi’s seem to be in the 24-30kw range so there isn’t any issues there .
My question is regarding the supply of hot water from the new Combi to the existing system . When I strip out the copper tank and roof tank myself (I’m fairly competent and want to save what money i can ) , I’ll alter the pipe work to the bath to 15mm down from 22mm and do what I can to alter existing hot water pipes so there aren’t any long dead legs or very long routes for the HW to travel from the new Combi .
The boiler will be sited in the downstairs toilet , there is a hand sink next to it with 15mm hot supply to the tap , so finally the question to the experts is can the new boiler supply hot water to this pipe as it’s only a couple of feet away ?? Or am I missing something because it sounds to easy and we all know there’s no such thing with DIY projects .
Thanks