72° for every guest.55° between stays.
STR Spark reads your bookings and sets the baseboard thermostats, mini-splits and space heaters you already own.
30 days free. Hospitable, Airbnb, Vrbo and Booking.com. No new hardware.
Watch it plan a week
Type a check-in and Cedar Heights plans its week. It is one of our own rentals, in Lynnwood, WA, with four Mysa baseboard thermostats.
- Last guest checked out at 11:00. Set back at the next check.55°
- Pre-heat starts: the first check within 24 hours of check-in.72°
- Guest checks in to a warm house.Room 72°
- Guest checked out at 11:00. Set back at the next check.55°
Or try
Works with the heat you already have
Most booking tools only talk to central thermostats. STR Spark runs the rest of a mixed portfolio under one set of rules.
Baseboard heaters
Through Mysa thermostats on baseboard and in-floor heat. 72° while guests are in, 55° when the place is empty, and switched back to heat if someone left them off.
Beta Mysa has no official connection.
VacantBedroom FrontMysa baseboard thermostat55°Set to56.1°RoomSet back from 72° Mon 12:00, after check-out.
Ductless mini-splits
Cooper & Hunter and Cielo. Guests can set anything from 66° to 76°, and outside that range the next check brings it back to 71°. Empty units hold their lowest heat setting. A unit a guest turned off stays off.
Official CieloBeta Cooper & Hunter
OccupiedLiving RoomCooper & Hunter mini-split69°Set to68.8°RoomA guest set 69°. Left alone: it's inside 66–76°.
Space heaters
Dreo heaters as backup heat. 65° while guests are in, eco mode at 55° when the place is empty, so they only run to keep pipes from freezing.
Official Dreo
VacantKitchen heaterDreo space heater55°Set to57.2°RoomEco mode while empty. Back to 65° before the next check-in.
Bookings from any calendar
Hospitable gives the exact check-in and check-out times. Hosts on other platforms paste the calendar link that Airbnb, Vrbo and Booking.com give every listing.
HospitableConnectedAirbnb calendarConnected4 properties found, in Pacific Time
Set up in one sitting
Connect your bookings and the apps your devices already use. Each property starts in a dry run that shows its plan and changes nothing until you turn it on.
- Sign inGoogle, Apple or an emailed link
- Connect bookingsHospitable · 4 properties
- Connect device accountsMysa, Dreo, Cooper & Hunter
- Link devices to properties9 of 12 linked
- Check the dry run
- Turn on
When it isn't sure, it leaves your heat alone
- Bookings can't be read. No device changes until they can.Hands off
- The property is empty. Never below the frost floor you choose.55° floor
- A device stops answering. We email you once, and the others keep running.One email
What it saves
A rental empty for nights a month, costing a day to heat at 72° and at 55°, saves
a month.
Example figures: tap one to put in your own from a utility bill. The sum is vacant nights × (daily cost at 72° − daily cost at 55°).
$8 a month for eachlive property.
Every device at the property is included. Properties in a dry run or paused are free, so trying a new one costs nothing. 30 days free with a card; cancel any time from Billing.
Questions hosts ask
Do I need new thermostats?
No. STR Spark signs in to the app your devices already use. If you can change the temperature from your phone today, STR Spark can too.
Can guests still change the temperature?
Yes. On mini-splits anything from 66° to 76° is left alone. Outside that range, the next check brings it back to 71°.
How quickly does it react to a booking?
It checks your bookings every 3 hours and starts heating 24 hours before check-in. A booking made on the day is picked up at the next check.
Which booking platforms does it work with?
Hospitable, and any platform that gives each listing a calendar link: Airbnb, Vrbo and Booking.com among them.
Is it safe to give it my device logins?
They are encrypted as soon as you save them and used only to sign in to that vendor. The safety page covers how, and what Beta means for Mysa and Cooper & Hunter.