On Monday, 22 June 2020 23:41:09 UTC+1, Fredxx wrote:
On 22/06/2020 17:29:59, tabbypurr wrote:
On Thursday, 18 June 2020 21:32:00 UTC+1, Fredxx wrote:
On 17/06/2020 12:48:21, tabbypurr wrote:
On Wednesday, 17 June 2020 04:45:08 UTC+1, RJH wrote:
On 16 Jun 2020 at 22:10:25 BST, tabbypurr wrote:
On Tuesday, 16 June 2020 19:55:22 UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:53:42 -0700 (PDT), tabbypurr wrote:

I suspect fanned rads will make a comeback some day once people realise
they can have a much smaller rad without all the fan noise of the old
ones.

s/fanned/finned/ ?

Not sure what that means, but they do tend to go together. A fan with a flat
panel works for a diy job but is not optimal design costwise for a new
product.

All you need for a fanned rad to work, take up way less space and be much
preferred is silence,

I can see how you get quiet for a reasonable amount

http://openecohomes.org/diy-fanned-radiator/

But silent?

and that's not a challenge.

For you, maybe :-)

If an engineer isn't able to design a silent fan they had better stay out of that business.

Moving any volume of air around inherently creates noise. An engineer
would know this, otherwise they best stay out of that business.

I take it you're not an engineer then. Or an ignorant one.

Hint: try turning a desktop fan round by finger & see how noisy it is. No wind noise.

And precious little movement of air. It won't be very efficient!

Oh boy.
Time to state the utterly obvious...
1. The fan turned by finger demonstrates that fans can be silent.
2. Yes you will need more speed to make it useful.
3. There are suitable fan designs and suitable motors that run at suitable speeds to get a useful silent end result.
Clear enough for you yet?