Window & Rain Sensor Radiator Control Airco Management BETA Dashboard
Solutions › Smart Radiator Control
PMS-synced

Heat rooms for guests, not for empty beds

Holio connects to your PMS and controls every radiator automatically: pre-heating before check-in, dropping to standby after checkout. No staff input. No wasted heating.

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18%avg. heating energy saved
0manual thermostat changes
5°Cstandby mode setpoint

Radiator Control: Floor 2

Room 204
Check-in 15:00 · pre-heating
21°C
▲ heating
Room 206
Occupied · stay until 12/06
21°C
stable
Room 208
Vacant · next check-in tomorrow
15°C
standby
Room 210
Checked out 11:00
15°C
standby
Saving est. today: €4.20 · 8 rooms on standby
A day in the life

How Holio manages Room 204 without anyone lifting a finger

From reservation to checkout, every heating decision is made automatically, timed to your PMS data.

See PMS integrations
Holio smart TRV installed on radiator in hotel room
09:00 – 14:30
Standby mode: 15°C
Room 204 holds at eco setpoint. Zero wasted energy during the day.
✓
14:30: Pre-heat triggered
Radiator ramps up to 21°C
Automatically started 30 minutes before check-in. Room is ready on arrival.
✓
15:00: Guest checks in
Comfortable room, happy guest
Radiator maintains guest temperature for the duration of the stay.
✓
11:00 next day: Checkout
Standby mode re-activated immediately
PMS triggers checkout → Holio drops room to 15°C within seconds. No staff action needed.
Features

Everything you need for smart radiator control

PMS integration

Syncs with Mews in real time. Check-in and checkout events automatically trigger heating changes, no manual scheduling.

Smart pre-heating

Holio calculates the exact ramp-up time based on current room temperature, so rooms are ready on arrival, not hours too early.

Frost protection

In winter, empty rooms never drop below the frost threshold (default 8°C). Protects plumbing and prevents expensive pipe damage.

Per-room profiles

Set different temperature targets per room type: standard, deluxe, suite. Adjust seasonally with one click in the dashboard.

TRV compatible

Works with existing thermostatic radiator valves. Retrofit in 5 minutes per room with no rewiring. Just clip on the smart TRV head.

Multi-property

Manage radiator schedules across multiple properties from a single dashboard login. Compare energy performance between locations.

Before & after

The same 50-room hotel, with and without Holio

Old manual TRV next to Holio smart TRV
Before
Manual TRV
Always on · no data · waste
After
Holio Smart TRV
PMS-synced · automatic · efficient

Without Holio

  • — All rooms heated to 21°C 24/7
  • — Empty rooms heated between guests
  • — Staff manually adjust thermostats
  • — No insight into room-by-room usage
  • — Monthly gas bill: ~€8,000

With Holio

  • ✓ Empty rooms hold at 15°C standby
  • ✓ Rooms pre-heated only before arrival
  • ✓ Zero staff involvement needed
  • ✓ Real-time dashboard per room
  • ✓ Monthly gas bill: ~€5,600 (saving ~€2,400)
“
"Within six months we cut our gas bill by 31%. The Mews integration meant zero extra work from our team. It just runs in the background."
RP
Roy Pronk
Operations Manager, Sandton Hotel Eindhoven Centre
More solutions

Combine for maximum savings

Open window in hotel room

Window & Rain Sensor

Radiator auto-pauses when a window opens; the two solutions work together seamlessly.

Learn more →
Split unit airco in hotel room

Airco Management BETA

Add cooling control alongside heating. One system managing the full climate of every room.

Learn more →
Live dashboard analytics

Live Dashboard

See every radiator schedule, saving and alert in one real-time overview.

Learn more →
Get started

Stop heating empty rooms. Start this week.

Book a free demo and we'll show you the Mews integration live and calculate your property's savings.

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