"Dave Plowman (News)" wrote in message
...
In article
,
Andy Dingley wrote:
On 20 Feb, 00:38, "Dave Plowman (News)" wrote:

Why bother? Doesn't seem to affect the working of the kettle or its
life.

It affects both - scale is a significant insulator so you'll increase
both time to boil and the operating temperature of the element.

Surely the extra insulation on the body reduces heat loss? And where does
the energy from the element go if not into heating the water?

It has to go into the water and won't affect the boiling time (as long as
scale thickness water dimensions). It will increase the internal element
temperature though, which isn't good.


--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not