Being able to control the heating and cooling of your home from your smartphone even when you’re not around, is something that’s been possible for more than a decade. Smart Thermostats may be some of the more expensive smart home devices on the market, but as they enable you to save energy (and subsequently money) as well as making life easier, the investment is certainly worth it.  In that time, Google has established itself as the market leader, with the Nest Learning Thermostat.
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