How Do Heat Pumps Work?
They don't create heat; they use refrigerant to move heat from the cold outdoors to the warm indoors.
How Do Smart Thermostats Save Energy?
Learning your schedule using motion sensors and adjusting temperatures automatically when you leave.
How Does a Thermostat Work?
Bimetallic strips, thermistors, and how your house knows when to turn on the heat.
How Does Air Conditioning Work?
Moving heat from the inside to the outside using a closed loop of refrigerant.