HVAC contractors: It is time to get involved in the smart home market. If you don't, I fear you will be looking back in three to five years, kicking yourself for passing on a golden opportunity. Why? First, let's look at the numbers, because they certainly tell a story. The number of smartphone users in the U.S. is estimated at 257.3 million. A total of 24 percent of American households have a smart speaker. Analysts estimate that 477 million smart home devices will be shipped globally in 2020. Also by 2020, experts are expecting 5.5 smart devices per home.
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