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Old Jan 13, 2010, 11:12 AM
Charles Lamont
Charles Lamont
n/a Posts
Re: Heating a workshop/garage

David Littlewood wrote:

>> It's far too cold to go and play with my newly aquired mill in the
>> wksp, I've started insulating it but heat is required to create a
>> decent environment.
>> To minimise the risk of condensation on machines the temperature
>> should be kept reasonably constant but that's expensive if you heat to
>> a comfortable working temperature. What do experienced wksp engineers
>> do? and what type of heating do you reccomend?

> When I expanded from my small workshop a year or so ago to annexe the
> garage, I had the same issue. The workshop is not heated but is open to
> the house and reasonably warm; the garage was unusable in winter as it was.
> I decided the first need was to insulate. I fitted fibreglass insulation
> and plasterboard to the roof. An estimate of heat loss (Googling "heat
> loss calculator" will show up dozens of pro-formas, though not many
> cover steel doors) showed that most was lost through the steel
> un-and-over door, but the manufacturer did not supply insulation panels
> for it (sidebar - should it not be a requirement to make these
> available? - the heat lost through these things can be enormous). I am
> still working on this, something cobbled up from polystyrene or
> polyurethane sheets seems probable.

I am doing the same with mine. The ceiling has been boarded (one panel
twice) and I am half way through doing doing the fibreglass.
The rest will have to wait another week or so while I recover. Two of
the 3 up-and over doors I have bolted shut, taken the mechanism off, and
lined the inside with 50mm rigid insulation (Kingspan type stuff) glued
in with polyurethane foam. I am thinking of putting a proper door in the
3rd hole, and in the meantime I think a brush at the bottom and several
layers of cardboard might not be a bad insulator, if I can figure out a
reasonable way to fix it.
Don't forget the floor. I have covered this with loft boarding chipboard
which is warmer, better to walk on, and does not ruin jobs and tools
dropped on it.

Charles Lamont