A thermostat controls half the average home's energy use—the rest, of course, goes mainly toward animating Frankensteins. Give your thermostat new life with this Groupon.
$249 for a smart-thermostat package (up to $428.95 value)
Limit 1 per person. Limit 1 per household. Appointment required. Credit valid for $150 towards installation, additional charges may apply. Valid within 25 miles of 20814. Home installation is mandatory.