By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Forum House Ad Zone

Domestic fan speeds.

How are the different speeds achieved electrically?

All Topics | Latest Posts

Search for:  in Thread Title in  
Hopper12/08/2022 13:00:40
avatar
7881 forum posts
397 photos

Or hire a punkah wallah to sit in the corner and wave a palm frond over you as you sleep. A la that old show "It Ain't Half Hot Mum".

Jon Lawes12/08/2022 13:22:43
avatar
1078 forum posts

My friends laugh at our ceiling fans claiming we are 1970s throwbacks.... I've never found a more efficient way of keeping cool, so I'll stay a throwback!

I measured the power drawn out of interest, 50w is typical once it's up to speed. This seems very efficient (and made me doubt my meter).

Peter Greene12/08/2022 22:12:12
865 forum posts
12 photos
Posted by John Doe 2 on 12/08/2022 07:31:17:

We do have a high quality ceiling fan that is much quieter, but have just moved house (again), so it is still in its box and not fitted yet.

Ironically I am waiting for cooler weather before I go up into the loft to fit a reinforcement plate to mount the ceiling fan in the bedroom. If I went up there now in this heat, I would expire ! Catch 22.

Trying to picture what you're doing there. If the concern is to avoid hanging the heavy weight of the fan from a lighting junction box in the ceiling, one way around it is to shift the mounting points of the fan (using 2 large, long screws) over to the adjacent joist. This, of course leaves the junction box exposed or partially so which can be redressed by also fitting a ~10" ceiling-rose centred on the fan which should cover the box ... or whatever size of rose will do it.

I have a number of ceiling fans in this place and I've done all of them like that.

I couldn't agree more that a (decent) ceiling fan is the way to go. Probably remote control and 3 speed. Doubt that you'll use the high speed, mostly the low speed which you probably won't hear or (just possibly) the middle speed which you may (or may not) barely hear.

Hopper12/08/2022 22:29:51
avatar
7881 forum posts
397 photos

And if noise is your issue, four-blade ceiling fans run quieter than three blades.

John Doe 213/08/2022 07:54:50
avatar
441 forum posts
29 photos

We have a high quality Fantasia 5 bladed, remote controlled ceiling fan, which is nice and quiet in operation. It is still packed in its box though from our recent house move.

I prefer to mount it to a wooden plate fixed between two ceiling joists, rather than just one joist. It has four large mounting screws/bolts, in a 120mm dia plate, which covers a larger footprint than the width of one joist, so I need something for the other two screws to attach to, and a wooden plate secured above the ceiling plasterboard between two joists gives me that. It is also quite a heavy ceiling fan so I prefer to spread the load over two joists and slightly over-engineer things, especially things I don't want falling onto us as we sleep ! This same fan has been fitted in our two previous houses, and I always fit it this way, with no problems at all.

As I say though, I don't want to work in the loft while it is so hot - ironically - so I will wait until slightly cooler weather. I had hoped that I would be able to change an electronic component to make our floor fan run more slowly and more quietly, but that was not possible, so I smoothed the leading edges of the blades and convinced myself it was a little quieter !

 

 

Edited By John Doe 2 on 13/08/2022 08:04:00

Hopper13/08/2022 08:51:17
avatar
7881 forum posts
397 photos
Posted by Jon Lawes on 12/08/2022 13:22:43:

My friends laugh at our ceiling fans claiming we are 1970s throwbacks.... I've never found a more efficient way of keeping cool, so I'll stay a throwback!

You are right. Ceiling fans are standard in every room in every house here in the tropics. Couldn't live here without them. Pedestal fans etc simply are not up to the job.

Hopper13/08/2022 08:53:18
avatar
7881 forum posts
397 photos

Posted by John Doe 2 on 13/08/2022 07:54:50:...

...

I had hoped that I would be able to change an electronic component to make our floor fan run more slowly and more quietly, but that was not possible, so I smoothed the leading edges of the blades and convinced myself it was a little quieter !

Two extra beer before bed and it will be silent. wink

John Doe 225/08/2022 11:54:35
avatar
441 forum posts
29 photos

Just to wrap this up, I have now fitted our bedroom ceiling fan - so you have me to blame for the cooler weather, sorry !

As usual, the fan needed to be fixed between two joists, hence the wooden plate, but anyway, I prefer to over-engineer things, and the fitting instructions do say the fixing should be able to support 4x the fan's static weight, so I like to spread the load over two joists.

PS, yes I will be changing those wall lights, but we have only just moved in.

b1b50ad5-bbbf-47e1-b788-5d16277916c8.jpeg

9995aedb-089b-4339-b455-bb57d0f05012.jpeg

Georgineer26/08/2022 13:15:44
652 forum posts
33 photos
Posted by Jon Lawes on 11/08/2022 18:17:06:

Bring back the Variac!

Mine never went away. I've used it with a cheap-and-cheerful fan for many years, and it gives smooth progression of speeds from nearly-nuffink to full-whiz. It has never given any problems at all, and on the occasions when I need it for a workshop project I choose a cool day and borrow it back from the living room.

George

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Sign up to our Newsletter

Sign up to our newsletter and get a free digital issue.

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts
Support Our Partners
cowells
Sarik
MERIDIENNE EXHIBITIONS LTD
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest

 

Donate

donate