You may want to control your rental unit temperature when it’s vacant, thereby saving $$$$$ on heating and cooling costs. We like the Honeywell 9000 thermostat for this purpose. It’s very responsive to remote control and is fully programmable. It’s easy for guests to use, too.

You can buy these at Amazon.com or at other websites and brick and mortar stores. These connect directly to your WiFi router and are controlled by either an app (phone or tablet) or via a web page.

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We also have mini-split heat-A/C units in several locations and those typically come with the ability to connect directly to the internet so you can control them with an app or website.