Installing a fan in a ceiling

First check that there are no joints, pipes or cables above the area where the fan will be located. Ducting must be used when steam or condensation are likely to occur unless venting directly to the outside. Work out the route the ducting will take and total length required. Xpelair recommend keeping the length of ducting to a minimum and avoid sharp bends as this may affect performance. You will need an outer grille to match the
ducting diameter.

Wall mounting a fan

Check that your chosen location has no buried pipes or cables and that the wall outside has no obstructions.

Fitting a fan in a window

It is advisable to have the hole pre-cut by a professional glazier. Note: Please make sure you have a minimum glass thickness of 4mm and on the larger GX9 and GX12 fans a glass thickness of 5mm.

Product Terms:

Axial Fans: Suitable for wall, window and roof application where they can extract directly to the outside.
Centrifugal Fans: These are pressure developing fans, capable of overcoming the resistance encountered in a ducted system. This is particularly useful in applications such as internal toilets, bathrooms or washrooms where there is no direct access to the outside.Bathroom Fans Operating On 12v: These fans operate on 12V, supplied by an unobtrusive transformer fitted outside the bathroom when the fans need to be fitted directly in or over the splash area zone offering complete peace of mind.

Step 1: Calculate room volume. Length x Width x Height. Example: 3m x 3m x 3m = 27m³/hr.

Step 2: What is the application? Example: Bathroom.

Step 3: Multiply the volume of the room with the number of air change requirements in the Specific room air changes table (see below).  Example: 27m³/hr x 10 air changes= 270m³/hr.

Step 4: What mounting is required? Example: Window fan extracting directly outside.

Step 5: Select the fan which closely corresponds to your requirements. Example: 270m³/hr that can be window mounted. GX6 or GXC6 can be used in this application.