There's a report on www.consumer.org.nz about oil heaters and it includes a calculation to work out what size heater you should use and how much it would cost. Not sure if it fully answers your question but I hope it helps.
Do you have it on thermostat? Is it on all day/night? Remember the most expensive part of column heaters is the oil heating up, so I'd recommend that you have it on thermostat and on all day. Not sure which would be cheaper though.
Mr Mellow (16)
Miss Attitude (8)
Destructa Kid (3)
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum