It’s not technically 90% off… but with rebates up to $50, it sure feels like it. The Amazon Smart Thermostat is already affordable, and if your utility provider is participating, you could score serious savings just in time for those summer AC battles. Not everyone qualifies, but it’s worth the 15-second check.

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Last update on 2026-04-21 at 07:34 / Affiliate links / Images from Amazon Product Advertising API