Recent content by JAllen

With this type of ducting the inner layer is usually perforated to improve the sound insulation properties of the ducting. Therefore, the OP needs to make sure the one he's using is a correct type that also has an additional vapour barrier film between the inner layer and the mineral wool...

The mid-position valve is an unbranded one that was replaced by British Gas.

Hi, I currently have a fully pumped Y-plan open vented system with a Potterton Suprima 80 boiler which has started playing up recently. What's happening is that on some occasions the boiler refuses to turn off. We first notice this when it starts to get too warm in the house - the boiler...

Check with the manufacturer of your boiler but I think it depends on what type of metal the heat exchanger is made from. For example, some of the Worcester Bosch ones have aluminium heat exchangers and they specifically state not to use water from a water softener...

Hello, I tried to use my outside tap today for the first time since last autumn but no water came out :( It's similar to the one shown here: http://www.toolstation.com/images/library/stock/webbig/32002.jpg Does the small hexagonal nut shown on the underside of the tap represent the...

When choosing tile trim does it need to match the thickness of the tile, or does it need to be a few mm thicker to take into account the depth of the adhesive behind the tile? In this case the tiles I have chosen are around 8mm thick.

The diagram below shows my current boiler set up. Could someone tell me what is the purpose of the by-pass balancing valve as shown on the diagram. Should this gate valve be left open or closed, or somewhere in between? Thanks.