We are trying to get an external oil combi boiler fitted, approx 5m away from the house and have found some pre-insulated four core heating water pipe to do this but they only sell in a minimum of 10m lengths and is very expensive. I wonder if anyone knows of any other pipe which could be used which is cheaper or anywhere that sells the pipe in less than 10m lengths. The pipe I have found is Microflex and Uponor.
