Cooker hood vent

AdrianW2

Our new house has a cooker hood, which at the moment just vents back into the kitchen. It also has a large hole in the wall.

I'm thinking of getting a cooker hood kit to vent the hood through the hole and solve both problems. I've learnt from experience that the easiest way to waste money on a DIY job is to buy the wrong parts.

Screwfix sell two kits, 100mm and 125mm, both of which claim to have 125mm pipe (although one review says the pipe is 140mm), and the vent is, strangely, larger on the 100mm. The cooker hood has tabs set in a circle with a roughly 100mm diameter, the hole in the wall is about 122mm diameter.

I'm not confident that I can attach a ducting pipe straight to the cooker hood tabs using a jubilee clip without it forever coming off. Do I need some form of 100mm to 125mm adaptor, and will a 125mm duct (inside or outside diameter?) fit through my hole.

At the other end, the hole is neatly countersunk into the outside wall, so I need a quite a large vent to be able to secure it.

Any with experience care to offer guidance?

System

if the hood is set up to recirculate the air you will need to reset it to vent out , depending on the make it may just be a switch

AdrianW2

For the benefit of anyone finding this thread through Google.

I ended up buying a length of 100mm "Marley Semi Rigid Ventilation Hose" from B&Q which fits nicely over the cooker hood and a "Manrose Square Brown Flat Vent" for 100mm channel from Screwfix. The whole lot push fits together nicely and passes through the hole in the wall with room to spare.

27col

Quote: [I'm thinking of getting a cooker hood kit to vent the hood through the hole and solve both problems. I've learnt from experience that the easiest way to waste money on a DIY job is to buy the wrong parts.]

Buying the wrong parts is not necessarily a way to lose money. The "sheds" and places like Tool Station are very good about accepting returns. You just have to be careful to retain the packaging and the receipt, and do as little damage to the packaging as you can. It is normal to find that you have the wrong part very early on in the project. At that point you carefully re-wrap and take it back exchange it for the correct item. I tend to buy several different components and take back those that I did not use.