Honeywell’s new Prestige IAQ thermostat is 60% smaller than the company’s other programmable models and can control temperature, humidity, ventilation, and fan settings from any Web-enabled device, using a cloud-based app. The thermostat alerts the homeowner when the heating and cooling system is having problems, as well as when it’s time to change the furnace filter or humidifier pad. While the final cost is up to the hvac contractor, most homeowners can expect to pay around $300.

Honeywell, 877/271-8620,

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