Space heating, space cooling, and water heating are some of the largest energy expenses in any home. Learn how to save money and energy at home, choose energy efficient heating and cooling systems, and maintain comfort.
Space Heating and Cooling
Principles of Heating and Cooling
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Understanding how your home and body heat up can help you stay cool.
Thermostats
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In most situations, a programmable thermostat can save you money without sacrificing comfort.
Minimizing Energy Losses in Ducts
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Insulating, air sealing, and placing ducts within the conditioned space of your home will reduce energy losses.
How to Read Residential Electric and Natural Gas Meters
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Read your own electric and gas meters to ensure accuracy.
Dehumidifying Heat Pipes
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If you live in a hot, humid climate, a dehumidifying heat pipe may improve comfort by reducing indoor humidity.
Home Cooling Systems
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Choosing the most effective cooling options for your climate saves money and improves comfort.
Home Heating Systems
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Your choice of heating technologies impacts your energy bill. Learn about your options, from active solar to portable heaters.
Heat Pump Systems
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Live in a mild climate? A heat pump might be your best option for efficient heating and cooling.
Water Heating
Selecting a New Water Heater
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Tankless? Storage? Solar? Save money on your water heating bill by choosing the right type of energy-efficient water heater for your needs.
Sizing a New Water Heater
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When buying a new water heater, bigger is not always better. Learn how to buy the right size of water heater.
Tankless or Demand-Type Water Heaters
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Looking to save money and energy? A tankless water heater might be the right choice for your small household.
Heat Pump Water Heaters
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If you live in a warm place, a heat pump might be your ticket to lower energy bills.
Storage Water Heaters
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Installing a storage water heater? Learn about selecting, installing, and maintaining a storage water heater.
Tankless Coil and Indirect Water Heaters
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Can you use your home's space heating system to heat your water? Indirect water heater do just that.
Solar Water Heaters
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Solar energy isn't just for electricity. Learn how a solar water heater works.
Drain-Water Heat Recovery
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Did you know that you can use heat from water that you've already used to preheat more hot water -- and reduce your water heating costs?
Reduce Hot Water Use for Energy Savings
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Fixing leaks, using low-flow fixtures, and buying energy-efficient appliances can help you save on water heating bills.
Swimming Pool Heating
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Own a swimming pool? Find strategies to reduce the cost of heating your pool.