• Looking for a smarter way to manage your heating this winter? We’ve been testing the new Aqara Radiator Thermostat W600 to see how quiet, accurate and easy it is to use around the home. Click here read our review.

Size of gas pipe for new boiler (Ed.)

I don't know where you get that from. Combis tend to be 28 - 34kW, vs heat-only typically 15kW.
According to my calc if the existing is 15 kW, 15mm pipe up to 8m length is within the allowed 1mb loss, but of course it's up to the OP's installer to advise.

I missed the 8m of 15mm.
 

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top