Heaters, what's best and at what watts?

[daemondamian]

Hi Ross, thanks for your reply
the main west facing wall I left alone - it is old corrugated fibreglass that really needs replacing. I'm thinking of replacing it with polyflute which is a doubleskinned acrylic plastic [I think] with a corrugated sheet in the middle [like corrugated cardboard essentially] that would have better insulating properties not to mention would let in more light [the fibreglass is very old].

I'm not sure of the exact sunrise but it is getting dark here at 5pm so I should probably reduce the duration

Do you think it really would make a difference painting the milk bottles black? What about putting in an aquarium heater in the fishtank set on full? I'm hesitant to do that because it will cause lots of condensation.

I guess I am lucky though with a winter average of 8 degrees celcius and the occasional frosts, no freezing ground or snow storms to contend with ...

Will have to wait and see how I go with the 1000watt oil filled heater I ended up getting [I need to get a thermostat to set it at a minimum temperature other wise it's guessing and a whole lot of frequent adjusting ], will sure let you know how it goes! thanks again