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I'm spending a lot of time in the garage and I'd like to be able to
heat it whilst I work in there. I was wondering about these quartz
patio heaters which are advertised as "the only heat that doesn't blow
away". Are they any good? I notice they are only rated at about 1.2kW,
whereas a fan heater might be 3kW. Is this because they are more
efficient or would they not warm me as much as a fan heater?

I see they say they must be mounted 2.7 metres high. Is this because
the higher they are the wider area they will cover? For a patio,
that's fine, but who has a 2.7m high garage? Could I mount it lower?

I'm wondering if I need some frost protection in there to keep the odd
tins of pint from freezing and too keep condensation off the tools to
prevent rust. Would a tubular heater on a frost stat do, and if so is
there a formula to calculate what size heater I'd need?

You need something like
http://tinyurl.com/yuldcr

HI

On Sat, 24 Feb 2007 11:31:41 GMT, wrote:

On Sat, 24 Feb 2007 09:01:39 -0000, "Robbo"
wrote:

You need something like
http://tinyurl.com/yuldcr


Yes this is exactly what i am thinking of but why are they only rated
at just over 1kW, compared to 2 or 3 kW for other heaters? Are they
more efficient?

I think the theory is that they warm 'you' - rather than 'your
surroundings' - and, as such, require less power for the same effect.

This was true at the last house where my outside 'studio' was heated
by a single 1kw 'bathroom'-style radiant heater. The studio itself
remained fairly cool, but people in there felt warm - all except for
the toes which tended to freeze ! (concrete slab floor)

New studio will have radiant heating and a suspended chip floor on
insulation !

Hope this helps
Adrian

On Sat, 24 Feb 2007 13:34:22 +0000, Peter Parry
wrote:

All electric heaters are almost exactly 100% efficient

Not if you consider the efficiency of the overall system (i.e. heat in
you / power in). That's the aspect where the more recent
long-wavelength IR heaters (flat white ceramic plates, no quartz and
definitely no visible glow) have the advantage. Losses in the air are
less at this wavelength, so you receive more of the heat personally.

Although I still wonder about the justification of heating an outdoor
patio. Why not just burn whale oil to keep warm, or get a nice panda
skin coat ?

Andy Dingley wrote:

Although I still wonder about the justification of heating an outdoor
patio. Why not just burn whale oil to keep warm,

because it smells so bad.... swan fat is better ;-)


--
Cheers,

John.

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