A water heater's energy efficiency is determined by the energy factor (EF), which is based on the amount of hot water produced per unit of fuel consumed over a typical day. The higher the energy factor, the more efficient the water heater.
Water heaters 101: How to choose the most efficient model [Infographic]
Cut Costs by Choosing the Right - Cut your utility bills by the correct water heater for your home and family. Consider factors such as home size, number of people and source when searching for the right model.
Illustration of an active, closed loop solar water heater. A large, flat panel called a flat plate collector is connected to a tank called a solar storage/backup water heater. Another option in sustainable residential living!
DIY Solar Water Heating You can install a solar hot water kit yourself to supplement your existing system and save on energy costs. The system will often pay for itself in several years. I'm going to have solar panals
Pros and Cons of Tankless Water Heaters: Tankless water heaters can save energy, but at a higher initial cost and they serve hot water one faucet at a time—so someone gets a cold shower if multiple showers are running.
How to get cheap solar power - 14 solar-themed Instructables. Learn how to make your own solar panels for less, build a solar over, solar powered phone charger and much much more! pinning for fruit drying for next year.