On Wednesday, 8 November 2017 22:16:30 UTC, T i m wrote:
On Wed, 8 Nov 2017 08:54:54 -0800 (PST), whisky-dave
wrote:

snip

fort eh last 2 hours it;s been full on at 705 watts.
If I switch of teh I rocker it;s LED goes out the other II LED remains on and the power drops to 0W, a few mins later I hear a click the same LEDs on and off but the power goes to 1045W.
Switching the I back on power 1734W
Switch II off 702W

In addition to what has been mentioned elsewhere, the link suggests
you have a 3 level (switchable) heater, where one element is ~700W and
the other 2000-700 = ~1300W.

Yes that seems reasonable.


So, you have choice of output powers of (nominally) 700, 1300 and
2000W.

Yep.
So if a heater is left on in the III position and the thermostate fully clockwise in it's maxium position what electrical power will the heater use and how much will it cost to leave it on from 9-5.

if I have 5 of these and two 1.5KW versions set to the same settings how much will this cost to run from 9-5 ?

That's the sort of things I'm curious about as at 9am the temerature was 14C
it is now 12 midday and teh temerature is 15C (so still below the recommened 16C as stated in the 1992 factories act section 7.


The thermostat *should* function on all / any settings (so you should
measure 700, 1200 or 2000W or nothing).

Yes I do pretty much get those results.
I aslo tested the impedence which seems to be 25 ohms to 65 ohms from memory as I can't find the paper I wrote it down on a few days ago.


The 'overtemp' switch should also work on all / any and that may or
may not cut in (open) before the thermostat does, depending on what
wattage you are using (input energy output load).

The 'on' indicator may or may not indicate it is heating or that it is
just on (depending where it is in the circuit).

Yes I know, so with both lights on what power should the heater be running at.


Anything else would suggest that it's either wired incorrectly, or is
supposed to work like that (instructions)?

Well the instuctions are on the site, but are not the same as the ones delivered but look the same with very similar specs and look pretty much the same.