Fan In Bathroom

[ban-all-sheds]

No need for an Ex rated fan as you get closer to the WC?

 

[securespark]

Thanks, guys.

RF: It's an in-line fan in the loft, so no issues there: http://www.tlc-direct.co.uk/Products/SLTD500SILENT.html

I wanted the silent version as they're all rather noisy, plus I want this one controlled by PIR. I know, I know....!

Ban: Not sure what you mean?

 

[ban-all-sheds]

http://en.wikipedia.org/wiki/ATEX_directive

 

[securespark]

I know I have a large body mass approaching that of a teenage elephant. However, I'm not sure that my daily methane output presents a risk of explosion, do you?

 

[RF Lighting]

Thanks, guys.

RF: It's an in-line fan in the loft, so no issues there: http://www.tlc-direct.co.uk/Products/SLTD500SILENT.html

I wanted the silent version as they're all rather noisy, plus I want this one controlled by PIR. I know, I know....!

Ban: Not sure what you mean?

Whoops missed that bit.

When we fit duct fans we pack it off the just with a good lump of compressed loft insulation etc, or better still suspend it from the roof using string to prevent the vibrations passing on to the rest of the building.

 

[securespark]

Ahead of you there, Rob!

This S&P unit is the bee's doodah's when it comes to what car designers call NVH (Noise, Vibration & Harshness : I'm sure Fan designers have the same terminology!).

This blurb from the TLC webpage for the S&P silent fan:

In the latest development of the TD concept S&P engineers have focussed on reducing noise as far as possible.

The new S&P TD-SILENT maintains the air performance and technical features of the original TD but noise is reduced to a much lower level.

Sound levels have been reduced in the inlet and outlet ducts as well as massive reductions in radiated sound levels making the TD-SILENT up to 12dB(A) quieter than major competitors.

How did S&P engineers achieve this innovation?

The product has a unique perforated inner liner design, enclosed in an outer casing of high density material to reduce sound transmission.

Duct connection is via flexible elastomer gaskets to eliminate air leakage and minimise sound and vibration transmission to ducts.

Twin-material support brackets, which in addition to simplifying installation, serve as joint seals.
A specifically designed internal coating to direct the sound waves in the right angle for them to be captured by the sound-absorbent material.

Support bracket for installing on a wall or ceiling, incorporating twin-material support brackets for the motor section that absorb vibrations.
Sound waves produced inside the TD, are directed through the perforated inner cover and absorbed by the layer of sound-absorbent material.

Also, I'm using this, acoustic ducting: http://www.tlc-direct.co.uk/Products/FDAD6.html

I could also suspend the unit if you think that would help.

 

[ban-all-sheds]

I know I have a large body mass approaching that of a teenage elephant. However, I'm not sure that my daily methane output presents a risk of explosion, do you?

I neither know, nor care to know.

 

[securespark]

So, if you neither know nor care to know about my methane ouput being an explosive risk, why mention the directive?