Varlo

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A warm British hotel bedroom with a radiator and wall thermostat.

Energy & rooms

Empty rooms should not be on full heat. That bill is colossal.

Hotel room heating by occupancy

Occupancy from the diary you already run, with the heating kit you already have. Cloud-based — we can get you set up.

Occupancy drives the heat

  1. 01

    Diary occupancy

    Who is in, arriving, vacant

  2. 02

    Heat occupied rooms

    Empty stock is not guest heat

  3. 03

    Frost on checkout

    Winter mode keeps pipes safe

  4. 04

    Breakfast follows house

    Off when nobody is staying

Reads from

  • Mews
  • SiteMinder
  • Booking.com
  • Cloudbeds

Works with

  • Hive

Works with, reads from, or sits alongside — not official partnerships.

What you save

  • Stop heating vacant bedrooms like a sold night.

  • Checkout goes to frost — not last night’s setpoint, forgotten until Monday.

  • The breakfast room stays off when the house is empty.

  • Reception is not walking corridors with a thermostat for last-minute bookings.

What it does

Occupancy from the booking system drives Hive, room thermostats, or radiator controllers.

The flow

  1. 01

    Occupancy from the diary

    The booking system says who is in, arriving, departing, or vacant.

  2. 02

    Heat the rooms that need it

    Occupied and arriving rooms stay comfortable. Vacant rooms do not get guest heat.

  3. 03

    Frost on checkout, safe in winter

    Guest leaves, room goes to frost. Winter mode keeps pipes and fabric safe.

  4. 04

    Last-minute and three-day warmup

    A booking made today still gets a warm room. A stay due in about three days starts coming up on its own.

  5. 05

    Breakfast follows the house

    Guests staying: heat a couple of hours before breakfast. Empty house: the communal room stays off.

The software running

Dashboards, lists, alerts — cropped from the live kit

Anonymised as The Oak. Enough chrome to see it is real software. Not every screen, and not your data.

app.varlo.co.uk
Live

The Oak · rooms

Occupancy heating · Sat 16 Aug

6

In house

2

Arriving

3

Departing

8

Vacant

3occupied

Oak

Guest in

5vacant

Willow

Empty

7arriving

Beech

Today

8departing

Yew

Frost next

2occupied

Ash

Guest in

4vacant

Elm

Empty

House occupancy

In house, arriving, departing, vacant — the diary that drives the heat.

09:41LTE

Heating

The Oak

4

Heat on

8

Heat off

1

Holds

  • 3

    Oak

    14–16 Aug

    Occupied
  • 5

    Willow

    No booking

    Vacant
  • 7

    Beech

    Today → 18 Aug

    Arriving
  • 8

    Yew

    Checked out

    Frost
  • 2

    Ash

    Staff hold

    Hold

Room panel

Occupied rooms on heat. Vacant rooms off. Holds where staff need them.

09:41LTE

The Oak · House

Breakfast area

Guests in tonight

Yes · 6 rooms

Breakfast heat on from 06:15

Empty house

If nobody is staying, the breakfast room stays off in the morning.

Follow bookingsHold

Breakfast area

Communal breakfast heat follows whether anyone is staying.

app.varlo.co.uk
Live

Checkout · The Oak

Frost mode

  • Yew

    Checked out 10:12

    Frost
  • Elm

    Checked out 10:40

    Frost
  • Oak

    Still in

    Heat on

Not last night’s guest setpoint, forgotten until Monday.

Checkout to frost

Guest leaves. Room drops to frost. Not a forgotten setpoint.

app.varlo.co.uk
Live

Safe winter

Empty rooms protected

Winter mode

On · pipes safe

Vacant rooms stay off guest heat, not frozen.

Vacant

Frost floor

Occupied

Guest heat

Safe winter mode

Empty rooms stay off guest heat, not frozen.

app.varlo.co.uk
Live

Warmup · booking diary

Last-minute and three-day

  • Beech

    Arriving today

    Coming up now
  • Ash

    Due Mon

    Starts tomorrow
  • Willow

    Due Thu

    Three-day warmup

Last-minute warmup

Today’s booking comes up now. A stay in three days starts on its own.

app.varlo.co.uk
Live

Kit

Hive · stats · radiators

Push to Hive

Hive rooms

8 zones following occupancy

Room thermostats

Where the house already has them

Radiator controllers

Fitted where there are no stats

Hive, stats, radiators

Works with Hive, room thermostats, or radiator controllers.

Who it is for

Hotels, inns, and B&Bs with rooms on a booking system — one property or a group. Works whether you already have Hive, room thermostats, or only radiators.

Heating only when people are in

The core rule is occupancy. If a room is empty, it is not treated like a sold night. That is where the bill actually drops.

Works with the kit you already have

Hive, individual room thermostats, or no room stats at all — we can put radiator controllers on the radiators. You do not need to rip out the heating to start saving.

Frost on checkout, safe in winter

When a guest leaves, the room switches to frost mode. A safe winter mode stops rooms getting too cold, so pipes and fabric stay protected without heating empty stock like a full house.

Last-minute and three-day warmup

A booking made today still gets a warm room. If someone is due in about three days, the system starts bringing the room up automatically — reception is not walking corridors with a thermostat.

Breakfast area follows the house

If nobody is staying, the communal breakfast room does not heat in the morning. If guests are in, it comes on a couple of hours before they come down.

The saving is colossal

This is not a small efficiency tweak. Across a house — and across a group — occupancy heating is one of the clearest money-savers in hospitality.

How the saving works

Occupancy heating in full

Whatever heating you already run

Some houses are on Hive. Some have a thermostat in every bedroom. Some have neither — just radiators. We work with that. Hive and room thermostats can follow occupancy as they stand. If there are no individual controls, radiator controllers go on the radiators so each room can still be heated only when it is occupied. The software is the same idea either way: the booking diary decides, not a guess.

Occupancy is the switch

Hotel occupancy heating means the room is treated as occupied, arriving, departing, or vacant. Heat follows that. Vacant rooms are not left on guest comfort. That is the whole product, and it is why the energy bill moves.

Checkout, frost, and a safe winter

On checkout the room goes to frost mode — not guest heat, not a forgotten setpoint from last night. In winter a safe mode keeps rooms from getting too cold, so you are not choosing between a huge bill and a frozen house.

Last-minute bookings and the next few days

Walk-ins and late online bookings still arrive to a room that is coming up. If there is a booking in about three days, warmup starts on its own. Staff do not need a separate heating ritual for every change in the diary.

Breakfast area heating

Communal breakfast space is often left on a timer as if the house is always full. It is not. If no guests are staying, it stays off in the morning. If people are in, it turns on a couple of hours before breakfast so the room is ready when they come down — and not six hours before.

Questions people ask

How does occupancy-based hotel heating save money?
Most hotels heat rooms as if they are always sold. They are not. Full heat on an empty bedroom is money leaving the building every night of the year. Driving setpoints from the booking diary — and frost mode on checkout — cuts that waste. The saving is colossal because heating is one of the largest costs in a rooms business.
Do we need Hive or individual room thermostats?
No. If you already have Hive or room thermostats, we use them. If you do not, we can fit radiator controllers so each room can still follow occupancy. The point is the rule, not a particular brand of kit.
Will guests arrive to a cold room?
No. Occupied rooms stay comfortable. Last-minute bookings warm up automatically, and a stay due in about three days starts coming up in advance. The cut is on empty stock and on checkout — not on guest comfort.
What happens to the breakfast room when the house is empty?
It does not heat in the morning. If guests are staying, it comes on a couple of hours before breakfast. That is another quiet saving most inns never look at.
Is this only for small hotels?
The same occupancy logic scales. An independent inn, a small group, or a larger chain can all stop paying to heat empty bedrooms.

Free trial

Start with hotel heating

Plans are modular and recurring, billed monthly by UK direct debit. We can get you set up. Extra modules are discounted the more you use. When we improve the whole system, your location updates with it.

Get started