In article ,
says...
Hi all,

I'm a 'non' gardener, but I like the results there of so ...

The lean-to greenhouse has no opening windows - no not an easy option to
put some in (without a full re-build - not my design etc. etc.) so can I
use on of those window openers to open the door or does anyone have any
other ideas?

I'd thought about a PV-cell (or several) and a few 12V computer case fans
but ...

TIA

Nick

Put louvre style vents in by taking single sheets of glass out, so long
as your glass is standard they should fit and you can get automatic
openers for them.
Putting auto openers on the doors will not work as you would only be able
to go in when it was hot!
--
Charlie Pridham, Gardening in Cornwall
www.roselandhouse.co.uk
Holders of national collections of Clematis viticella cultivars and
Lapageria rosea