muckamuck. I don't have any measurements besides my gas and electric bill. And they went up after the utilities raised the rates like 2 years ago to pay for our warm winter and the natural gas we didn't use. Huh? But it was supposed to be a temporary rate increase. Thankfully the cost of natural gas is at a 10 year low and the utilities are now passing that savings on to us now. Sarcasm off.