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I have recently refurbished my bathroom. When doing so I installed a bathroom extract fan wall mounted. It's in solid ducting through the wall
I got a envirovent silent 100T fan. Very impressed. Low wattage. Good extract rate. Quiet for a wall mounted fan. The only thing that bothers me is the backdraught shutter is a rubbish thin film of plastic. On the outside I've put a no resist fan grille. Should I put an inline backdraught shutter or leave as it is?
The grille is suppose to not affect fan efficiency. It's like a cowl but without a flap at the bottom. It's just open at the bottom. I'm more concerned when it gets to winter of a lot of wasted heat loss in the bathroom. I got an inline shutter gravity flap, not a spring one and when testing the fan the shutter only opened a slight bit. Now my options are to remove the rubbish plastic shutter and install the inline one in the middle of the solid ducting. Or to install the inline one as well as the plastic film one or to leave it and see how I go. Anyone any experience with bathroom extract fans and backdraught shutters?
I got a envirovent silent 100T fan. Very impressed. Low wattage. Good extract rate. Quiet for a wall mounted fan. The only thing that bothers me is the backdraught shutter is a rubbish thin film of plastic. On the outside I've put a no resist fan grille. Should I put an inline backdraught shutter or leave as it is?
The grille is suppose to not affect fan efficiency. It's like a cowl but without a flap at the bottom. It's just open at the bottom. I'm more concerned when it gets to winter of a lot of wasted heat loss in the bathroom. I got an inline shutter gravity flap, not a spring one and when testing the fan the shutter only opened a slight bit. Now my options are to remove the rubbish plastic shutter and install the inline one in the middle of the solid ducting. Or to install the inline one as well as the plastic film one or to leave it and see how I go. Anyone any experience with bathroom extract fans and backdraught shutters?