Same as mine, so even if there was no vent and someone was daft enough to install and then close a isolating valve on the 22mm combined vent and cold feed, the PRV will lift and protect the boiler and more.
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