A mobile application allows Heat Meter users to track their energy use and compare it to others in the area. Fuentes lives in a very efficient, well insulated, modern apartment that is heated with natural gas. He said his typical natural gas bill in the winter is about $60 a month, which includes the use of a gas stove. The Heat Meter application told him if he lowers his thermostat by two degrees, he could save $36 over the heating season. That might not seem like a lot, but for a much larger home, the savings could be in the hundreds or thousands of dollars.
The Heat Meter isn't available commercially yet, but can be purchased for $150 through a Kickstarter campaign.