Hope you used a special transformer. A dimmer gives pulses of mains voltage
that are a lethal as the straight mains.

Regards


"pronoun" a écrit dans le message de news:
...
Hi Amber,

You may consider building a bubble wrap dome inside the greenhouse. I
used
this to good effect last winter in a large DIY propagator with heating
cables controlled by a lighting dimmer switch. If this is feasable, try
to
arrange the roof, such that the condensation drips back into the soil
(sand
in my case.) This is by far the most economic method I know.


"Amber Ormerod" wrote in message
...
Would using soil heating cables be an economic way of keeping plants
frost
free in the winter? I am presuming that the heat will rise and keep the
rest
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