Either the guy you got that info from is full if you know what OR they don't know what they are talking about... Here in Ontario now we are all getting " smart-meters".. They record the time of use and you get billed according to that at either an off peak, mid peak or high peak rate. These meters are also going to be remote read every hour so you will be able to track your usage each hour on the internet when thats all set up, and these meters will even report a loss of supply to the PoCo should the supply go dead or someone pulls the meter out of the socket! But in no way that I am aware of are there even meters in existance that sample the outdoor temperature and adjust the peak billing rate..
Besides,if you had a meter you could "defeat" with a heat lamp, just how accurate would it be if say my meter sat in direct sunlight while my neighbours is in shade?? There would be a little bit of discrepancy between the two meters would there not?

A.D