“Programming your thermostat can feel daunting,” says John Galeotafiore, who oversees the testing of thermostats and other home products for CR.

New research reaffirms that we have a lot of trouble with thermostats -- and could probably be saving a lot more energy at home.

Programmable thermostats are capable of controlling the entire heating, ventilation and air conditioning (HVAC) system — from heating to indoor air quality and energy management.

Consumer Reports has tested all kinds of thermostats over the years, so we've learned how to decipher a variety of systems. “Programming your thermostat can feel daunting,” says John ...