Energy.gov

Your choice of heating technologies impacts your energy bill. Learn about your options, from active solar to portable heaters.

Live in a mild climate? A heat pump might be your best option for efficient heating and cooling.

Ductless mini-split air conditioners are a good choice if you want a zoned air conditioning system but have no ducts in your house.

In warm climates with low humidity, evaporative coolers can be a cost-effective cooling strategy.

Air conditioners work much like a refrigerator, transferring heat from the interior of your home to the outside.

Regular maintenance extends the life of your air conditioner and helps it run as efficiently as possible.

Room air conditioners can be a cost-effective strategy for cooling one room or part of a house.

Live in a cold climate, but get lots of sun? Active solar heating may be the most efficient option for heating your home.

Say goodbye to cold floors in winter. Radiant heating can be a comfortable and efficient heating choice.

Insulating, air sealing, and placing ducts within the conditioned space of your home will reduce energy losses.

Choosing the most effective cooling options for your climate saves money and improves comfort.

Does your home have an efficient system for distributing heat? Learn about different distribution systems.