Smart lock

Smart lock for your sauna

HEAT connects bookings to your smart lock. Guests get access automatically when they book, so there are no keys to hand out and no one needs to be on site for check-in.

How it works

  1. 1

    The guest books and pays

    The booking and payment happen online, in one flow.

  2. 2

    Access is granted automatically

    HEAT gives the guest access to the sauna at booking time.

  3. 3

    The guest lets themselves in

    They arrive and walk in. You do not have to be there.

Why it helps

  • No keys to hand out

    No key boxes, no handovers and no lost keys.

  • No one needs to be on site

    Check-in runs on its own, so you can run the sauna from anywhere.

  • Bookable around the clock

    Guests can book and get in without waiting for opening hours.

Questions

Do I need to be at the sauna when guests arrive?

No. Guests get access automatically when they book, so they can let themselves in.

Which smart locks work with HEAT?

Tell us which lock you have, or are thinking of buying, and we will go through it with you in the demo.

See it working for your sauna

Book a free demo and we will walk you through the whole system, from booking to a warm sauna.

Last updated: 19 October 2026

Book a free demo

Tell us a little about your sauna and we will show you how HEAT handles booking, smart locks, heater control and payments.

How many saunas do you operate? Optional

We'll get back to you within 24 hours.

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