Have your gas pipe upgraded to give the 1mb drop and you will find it makes no difference to your gas consumption or your gas bill, you wrote that your boiler comes on when there is no demand, is your boiler in your garage or loft ?
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.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local