I have a 3ft bearded dragon viv and I was just wondering how much electricity it takes to run it and is it expensive. Just my g/f moaning about it.
Bear in mind that (if my memory serves me correctly) the higher the wattage of an electrical device, the more it usually costs. I stand open to correction here (years since I did physics) but certainly heat mats appears to be low wattage devices, and I don't think ordinary bulbs on timers use much power either. I'm not sure about UV lights running off their transformers, but again I don't think it's that much. Maybe if you were keeping a load of Uromastyx at their favoured baking levels of heat with several UV lights then you might notice it.
The sort of devices that use up a lot of power are (I think) things like room heaters. Theoretically if you left an electric kettle on for hours you would probably also notice that on your bill (assuming of course it didn't burn out after the water had boiled dry). I saw the power surge from one of these knock down a load of PCs after it overloaded the fuse on that particular circuit - most embarrassing as I was the one who had plugged it in to make a cup of tea. :lol2:
Lol, i blew up a kettle once, it rattled round like crazy and then went bang! scared the life out of me and made a terrible smell!:lol2:
To reassure you, at one point I was running about ten vivaria, mostly with UV and certainly all using heat mats and bulbs, and even then I did not get any nasty shocks on my electricity bill - which isn't to say of course that it wouldn't have been lower without any of the animals. But the point is that they don't incur massive running costs in terms of energy.