Hi,
We want to install a ceiling extractor fan (with a run on timer) and built in LED light directly over our shower cubicle.
The actual fan will be in the loft (screwed to a joist or rafter) and will be vented outside through either a tile vent or soffit vent via flexible ducting.
I was going to buy one of these kits.
http://www.screwfix.com/p/manrose-in-line-led-shower-light-fan-kit-bright-chrome-mm/45818
However, when I've put our bathroom dimensions (2.5m x 2.1m and 2.42m high) into this online calculator https://www.tlc-direct.co.uk/Technical/Ventilation/Ventilation4.html
The fan is nowhere near powerful enough (it only shifts 83 cubic meters per hour, but the calculator say we need one capable of 254 cubic meters per hour). Here is a screen print.
Are there more powerful kits available? If so, where do you get them from? Or is that calculator a bit over the top and that kit will actually be fine? I would only class our bathroom as small to medium sized. Or maybe I'm just not using the calculator correctly.
Background notes.
The house is fully 17th edition, part P (RCDs and MCBs on the consumer unit etc).
The ceiling is 242cm above the floor, so 17cm above the 225cm above shower Zone 1.
The fan isolation switch will be located outside of the bathroom and the shower light switch will also be located outside of the bathroom (both several meters away from any bathroom zones).
Thanks in advance
We want to install a ceiling extractor fan (with a run on timer) and built in LED light directly over our shower cubicle.
The actual fan will be in the loft (screwed to a joist or rafter) and will be vented outside through either a tile vent or soffit vent via flexible ducting.
I was going to buy one of these kits.
http://www.screwfix.com/p/manrose-in-line-led-shower-light-fan-kit-bright-chrome-mm/45818
However, when I've put our bathroom dimensions (2.5m x 2.1m and 2.42m high) into this online calculator https://www.tlc-direct.co.uk/Technical/Ventilation/Ventilation4.html
The fan is nowhere near powerful enough (it only shifts 83 cubic meters per hour, but the calculator say we need one capable of 254 cubic meters per hour). Here is a screen print.
Are there more powerful kits available? If so, where do you get them from? Or is that calculator a bit over the top and that kit will actually be fine? I would only class our bathroom as small to medium sized. Or maybe I'm just not using the calculator correctly.
Background notes.
The house is fully 17th edition, part P (RCDs and MCBs on the consumer unit etc).
The ceiling is 242cm above the floor, so 17cm above the 225cm above shower Zone 1.
The fan isolation switch will be located outside of the bathroom and the shower light switch will also be located outside of the bathroom (both several meters away from any bathroom zones).
Thanks in advance
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