Airbnb Energy Saving Thermostat: Complete Guide for Hosts

Where the vacant-night money is hiding

A short-term rental is empty more nights than most owners realize. Even a property running 75% occupancy is vacant 90 nights a year. If your AC is running at 71F all 90 of those nights in Florida, you’re spending $400-700 of pure waste on cooling an empty house. The math is even uglier in winter cabins running gas heat at 68F to nobody. Cutting the AC back five degrees on vacant days is the single biggest line-item savings most rental operators leave on the table.

The trick is automating it tightly enough that the cleaner doesn’t walk into a sweltering house and the next guest doesn’t walk into a frigid one. The Ecobee SmartThermostat Premium and the Nest Learning Thermostat both handle setback mode — they just need a trigger that knows when the unit is empty. The trigger comes from your PMS (Hospitable, Guesty, OwnerRez, Hostfully) or, in the absence of a PMS API, from a Google Calendar containing your booked dates fed into a Zapier or Make.com flow.

Don’t go all the way to “off.” In summer, leave AC at 80-82F to manage humidity (a 90F house at 90% humidity grows mold). In winter, leave heat at 55-58F to prevent frozen pipes. The savings come from the gap between your guest-comfort target and your vacancy target — not from shutting the system down completely.

The vacancy automations that actually save money

Checkout reset (Ecobee Premium). Use the Ecobee API via Pipedream or Make.com. Trigger: Hospitable webhook “checkout completed” (or just “departure date passed at checkout time”). Action: set hold to 80F cool / 58F heat until 90 minutes before next check-in. Holds are time-bounded so the next guest’s pre-arrival routine takes over cleanly. This single automation typically saves $30-60/month per property.

Checkout reset (Nest Learning). Use Home Assistant with the Google Nest integration plus the Hospitable add-on, or fall back to a simple Alexa routine that the cleaner triggers (“Alexa, set the cabin to vacant”). The voice-trigger version means the cleaner is part of the loop — not great if your cleaner is forgetful, but it works.

Checkout reset (Honeywell T9). Build a Zapier flow: Google Calendar event ends → Resideo API call to set the schedule to your “vacant” preset. Honeywell’s API is documented and the Zapier app is solid.

Cleaner-aware mid-day window. If you know the cleaner shows up at 11am and the next guest checks in at 4pm, hold the temp at 73F from 10:30am-12:30pm (cleaner comfort), then drop to setback (80F) from 12:30pm-2:30pm (you save during the hot part of the day), then ramp back to 73F at 2:30pm before guest arrival. This is more efficient than just holding 73F the entire turnover day.

Long-vacancy deeper setback. Three or more vacant days in a row is a different category. Push AC to 84F, heat to 55F. Use the Ecobee’s eco+ “Schedule Assistant” or a Home Assistant automation that detects multi-day gaps in the booking calendar.

Smart-plug add-ons that compound the savings. A TP-Link Kasa KP125 (energy-monitoring smart plug) on a window AC unit gives you both control and runtime data. An Amazon Smart Plug on the water heater can be set to drop temperature during multi-day vacancies. Both pair to your existing setback routine via Alexa or Home Assistant.

Eco+ on Ecobee, specifically. Ecobee’s eco+ feature uses time-of-use electricity pricing data and aims to pre-cool or pre-heat during cheaper hours. In Texas, parts of California, and increasingly other states with TOU rates, this is real money — sometimes another 8-12% on top of your vacancy savings. Toggle it on, then check your first month’s runtime report to make sure it’s not running heat at 3am to dodge a peak window.

Setup gotchas that turn savings into trouble

Gotcha one: the cleaner unaware of setback mode. If you set the temp to 80F at checkout and the cleaner walks into a hot house, they will manually crank it down to 65F and leave it there. Now you’ve paid for both directions of the swing. Fix: schedule the cleaner-comfort window above (11am-12:30pm at 73F) so the cleaner never encounters the setback temp at all.

Gotcha two: humidity-driven mold during summer setback. Setting your Florida AC to 84F to save energy is a mold lawsuit waiting to happen. The Ecobee Premium has a humidity setpoint — tell it to call for AC if interior humidity exceeds 60%, regardless of temperature. The Nest doesn’t have this; if you have a Nest in a humid climate, leave summer setback at 78F and accept the smaller savings, or add a smart-plug-controlled dehumidifier.

Gotcha three: freeze events in cabins. Your winter setback floor must be 55F minimum, ideally 58F if there’s any plumbing in exterior walls. A frozen pipe burst from “saving $40” on a vacant week ends in a $40,000 insurance claim. Add an Aqara Water Leak Sensor under every sink and at the water heater drain pan as a backstop. Pair them to a Home Assistant or SmartThings hub that pages you immediately.

Gotcha four: the routine that fires on the wrong calendar entry. If you have your kid’s birthday on the same Google Calendar as your booking dates, your Zapier flow may fire setback at the wrong time. Use a dedicated calendar (Hospitable can sync to one) and only listen to that calendar.

Gotcha five: “vacancy” defined by the wrong signal. Some hosts try to use motion sensors to detect vacancy. This breaks during long-stay guests who are out for the day — you don’t want the AC to drop to 84F because the family went hiking. Use the booking calendar as the source of truth, not the motion sensor. Motion sensors are great for hallway lighting and turnover detection, not HVAC setback during occupied stays.

Sub-guides in this section

• Airbnb Energy Saving Thermostat — the device-specific setback configurations for Ecobee, Nest, and Honeywell.
• Thermostat Automation After Checkout — the exact webhook flow from Hospitable to your Ecobee or Nest.
• Airbnb Vacant Mode Thermostat — what the actual vacant-mode temps and humidity setpoints should be by climate.
• Save Heating Costs Airbnb — cold-climate setback strategy without freeze risk.
• Save Cooling Costs Airbnb — hot-climate setback with humidity protection.
• Smart Thermostat Schedule Between Guests — the cleaner-aware turnover window that protects everyone.
• Airbnb HVAC Automation — whole-system view including dehumidifiers, water heaters, and zone controls.
• Automatic Thermostat Reset After Checkout — building the trigger that fires the moment a guest leaves.
• Short Term Rental Energy Management — portfolio-level energy view across multiple properties.
• Airbnb Utility Cost Reduction Automation — the broader playbook including water, lighting, and standby loads.

Frequently asked questions

How much can I actually save with vacancy setback?

Real-world numbers from hosts running the Ecobee Premium with proper setback automations: 25-40% off cooling-dominant months in Florida and Texas, 18-30% off heating-dominant months in cold climates. On a typical $250/month summer electric bill in a 1500 sq ft Florida rental, that’s $60-100/month back. Your savings depend on occupancy — a 95%-booked property has less to gain than a 65%-booked one.

What’s a safe vacancy temp in summer in a humid climate?

78F with active humidity control, 80F if you have a smart-plug-controlled dehumidifier running on schedule, never above 82F for more than two days. The risk isn’t the temperature, it’s the humidity climbing above 65% and feeding mold growth in carpets, curtains, and wall cavities. Ecobee’s humidity-driven AC call solves this; on Nest, set a lower vacancy temp (78F) and accept smaller savings.

Should the cleaner trigger the setback or should it be automatic?

Automatic, every time. Cleaner-triggered routines fail constantly — they forget, they get distracted, the Echo doesn’t hear them. Tie the setback to your booking calendar via Hospitable, OwnerRez, or Google Calendar so it fires on schedule regardless of human error. Cleaner-triggered “all done” buttons are useful for cleaning-complete notifications, not for HVAC.

Won’t a deeper setback take longer to recover for the next guest?

Yes, which is why the pre-arrival routine fires 60-90 minutes before check-in. A typical residential AC drops a 1500 sq ft house from 82F to 73F in about 75-90 minutes. If your check-in is at 4pm, fire the routine at 2:30pm. The Ecobee Smart Recovery feature does this calculation for you; for Nest and Honeywell, set the trigger time manually based on your house’s actual cooling speed.

Where this connects

Vacancy savings are the back half of the comfort routine. Pair this with guest comfort automation for the pre-arrival warm-up that completes the loop, and review seasonal automation for freeze and heat-wave protection logic. Everything sits under the smart thermostats and energy pillar.