Harrow: replace combi boiler with new combi (ended)

replace combi boiler with new combi

Installed is an old (15 years) combi boiler in the kitchen. Want to get a new boiler installed in the same place. the Gas supply pipe is 15mm so needs replacing. The gas main is about 4 meters away and access is availabe under the floor or behind kitchen units, but will have to get under the worktop in the kitchen to feed it through. old boiler is mounted on an external wall where the flu is out of the back of the boiler. Water main is under the boiler and gas main is 6 feet away. There is one bathroom and there is 6 rads and 2 of them are double rad 1 small towel rad in the bathroom. Not expecting to add any more bathrooms or rads in the house. changing due to age of the old combi. (Worcester Bosch 27cdi preffered)
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