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Programming heating and cooling schedules is easy with the Comfort Sync thermostat, says the maker. It can be operated over the Internet with a computer, smart phone, or tablet, and features a high-definition touch screen, a one-touch “Away” mode for energy savings, and maintenance and repair alerts. It comes in several colors and patterns and costs around $225, not including installation.

Allied Air Enterprises, 800/448-5872, armstrongair.com.