"Chris Hogg" wrote in message
...
Thanks for the replies and the caveats.

The problem is that I have a pottery kiln that weighs 110kg (the 250kg
figure was so that I wasn't working on the limit of the pulley
system), that I have to raise about 60 cm into the air to get a stand
under it, and do this more or less single handed (possibly with help
from 'er indoors).

Is this outside? Do you have anything to pull from above (eg rafters)?

cheers,
clive