Plan this job
The decisions that
shape the work.
The fan, duct and outside outlet work as one system. A unit replacement is different from creating a new extraction route, so establish what is causing the problem before choosing a fan.
01The route to outside
Share the existing duct route, if known, and explain whether it passes through a wall, ceiling void or roof. Bends, the outlet position and access all affect the options. A fan's performance depends on the complete extraction route, as well as the product itself.
02Noise and everyday controls
Describe how the current fan operates, whether you need it to run after use and how important noise levels are to you. Timer, continuous and humidity-responsive models have different controls and electrical requirements. Share product details so these can be considered together.
03What the replacement involves
Show the fan's position in relation to the shower and explain whether the existing duct, opening and supply will remain. The replacement needs to suit the location and applicable ventilation requirements. Agree any duct alterations or building work alongside the electrical installation.