Basement Bathroom Ventilation Fan
#1
01-22-16, 08:00 PM
Basement Bathroom Ventilation Fan
Hi all,
Putting a bathroom in my basement and need some advice. Installing a vent fan that will be discharging out the side of the house, roughly 5 feet straighshot from the fan. With that short of a straight run, am I ok without insulation if I use pvc and pitch it downward or am I better off using insulated flex vent?
Putting a bathroom in my basement and need some advice. Installing a vent fan that will be discharging out the side of the house, roughly 5 feet straighshot from the fan. With that short of a straight run, am I ok without insulation if I use pvc and pitch it downward or am I better off using insulated flex vent?
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#5
01-23-16, 01:03 AM
Is that 5' of duct going to be inside a reasonably warm basement? If so, I would assume any condensation would be minimal and if there is a shower down there a timer to keep the fan running an extra 20 minutes after being switched off to remove excess moisture would also clear the duct of any moisture.
Bud
Bud
#6
01-23-16, 12:30 PM
Hi Bud,
Yes it will be warm. We'll be running a heat duct to it and the rest of the basement is insulated and heated. I'll also have a heater in the fan itself as well as radiant floor heat if that makes a difference. Really appreciate your feedback.
Yes it will be warm. We'll be running a heat duct to it and the rest of the basement is insulated and heated. I'll also have a heater in the fan itself as well as radiant floor heat if that makes a difference. Really appreciate your feedback.
#7
01-23-16, 01:17 PM
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The insulating sleeve from a length of flexible duct can be used to insulate rigid duct. Make sure to keep the ends tight to reduce/prevent air leakage between the duct proper and the insulation. Throughout the run of the duct the insulation must not be crushed against the duct.
#8
01-23-16, 03:25 PM
P3, with that short of a distance through a heated space, there is not need for insulation. I would recommend a rigid metal duct and if you insulate it, it will reduce the sound a little. But there should be no appreciable condensation until the air exits the vent. Allowing the fan to run after the shower in off will get rid of excess moisture in the bathroom as well as any that might be inside the duct.
Bud
Bud
