RE: [OT] Mirror Heaters

["Dean Barrett" <dean@xxxxxxxxx>]

Hi Rob


a. Yes, definately use the relay - not sure what would happen if you tried
to 'dim' then heater pad :)

b & c - 1 x 2.5mm radial backed by a 16amp MCB on the RCD side of the
consumer unit.

Any other queries, let me know.



Dean.


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From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Rob Mouser
Sent: 26 June 2005 09:27
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] [OT] Mirror Heaters


Thanks Dean

That's great! Whilst I've got your (or anyone else's) attention
:-).........
I'm about to run the 240v feeds to the bathroom for:
a) Mirror Heaters
b) Towel Rail
c) Underfloor heating

For 'a' I was going to run a separate feed from a c-bus relay which will
switch on with the lights. I didn't want to spur off the lighting for that
room as its on a 1amp dimmer and already has 4 x 50w halogens. Is my route
the best one? The two mirror heater pads have a combined output of nearly
200w.

How am I best to deal with 'b' and 'c'? 'c' needs to be on a 30Ma RCD. The
towel rail element (fits inside a central heating fed rail) is 400w. Shall
I
run two 2.5 runs from the consumer unit one into the RCD and one into a MCB
or can I connect both in series to the RCD (Less cable to run :-)). I have
no nearby and easily accessible ring so I cant spur 'b'.

And if anyone starts quoting part P regs or whatever the hell it is and the
fact that I need to have it done by a qualified sparky etc etc then I'm not
listening! ;-) Actually the local building inspector is coming back soon to
look at our velux window and he's said he can pass it :-)

Thanks in advance

Rob

-----Original Message-----
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Dean Barrett
Sent: 25 June 2005 22:55
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] [OT] Mirror Heaters

Rob

We do shed loads of heated mirrors, a mix of clipped, driiled, and many
that
are inset into fully tiled walls with very little to no gap - some
developers silicon between tiles and mirrors, others grout upto them.

As long as mirror backing is ok with pads and its the right adhesive you'll
be fine.



Dean

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From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Rob Mouser
Sent: 25 June 2005 21:46
To: ukha_d@xxxxxxx
Subject: [ukha_d] [OT] Mirror Heaters


Anyone here using mirror heating panels?



I want to fit some behind a 1300 x 1000mm mirror but the instructions
suggest corner mirror clips to allow for expansion. This is not something I
want to do as I would prefer to use mirror adhesive for a flush fit within
a
pre-made tile gap.



Is my mirror just going to crack in this scenario?



P.S. Heaters are connected to a c-bus relay for automation, just to keep it
on-topic :-)



Rob



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