Do they work ok and save you money?
wrote:
>I just looked at the website. I notice the fan blades have "washout" ie
>they have a twist. Many fans don't have this. This would improve
>efficency, especially running at higher speeds. So they may well be
>cheaper to run than other fans.
Which web site is that? I haven't been able to find one with fan
energy consumption comparisons.
This doc
http://www.energy.ca.gov/appliances/2003rulemaking/documents/case_studies/CASE_Ceiling_Fan.pdf
has some numbers. Figure 4 demonstrates that most fans have similar
performance, even if not labeled energy star. But it also show that
there are some really bad models. It also indicates that running a
less efficient fan on low speed will save more energy than running a
more efficient model on a higher speed. And of course if the fan has
inefficient lighting built in, then that will waste more energy than
the worst fan.
Wayne
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>they have a twist. Many fans don't have this. This would improve
>efficency, especially running at higher speeds. So they may well be
>cheaper to run than other fans.