HMO HEATING COST GUIDE
How Much Does It Cost to Heat an HMO in 2026?
A practical guide to all-bills-included HMO heating costs, the most common sources of waste and the room-by-room controls that help landlords cut the bill.
Key takeaways
For landlords paying the energy bills, better visibility and room-level control can turn an unpredictable cost into a manageable one.
£250 to £450 a month
A typical six-bedroom HMO can spend this amount on heating during colder months, with older or electric-heated properties often costing more.
Room-by-room control
Independent schedules and limits help avoid heating every bedroom just because one tenant is at home.
Up to 30% less waste
Well-configured smart controls can reduce unnecessary use, although actual savings depend on the property and existing habits.
Who pays for heating in an HMO?
In many HMOs, the landlord pays for gas and electricity because bills are included in the rent. This arrangement makes rooms more straightforward to market to students, young professionals and other tenants, but it also separates the person using the heating from the person paying for it.
That creates a familiar problem. A tenant can turn a radiator to maximum, leave a window open or heat an empty bedroom without seeing any direct effect on their own finances. The landlord sees the effect later, when the supplier bill arrives.
The answer is not to remove comfort or create disputes. It is to introduce fair, consistent control. Smart heating controls for HMOs give tenants a comfortable range while helping the landlord prevent obvious waste.
What does it cost to heat a typical HMO?
There is no single figure that applies to every shared property. The cost depends on floor area, insulation, boiler efficiency, heating type, tariff, occupancy and the temperature tenants expect.
For a typical six-bedroom HMO, it is common to see heating costs of roughly £250 to £450 per month across the colder half of the year. An older building with weak insulation, large rooms or electric heating can cost materially more. Hot water and communal areas can add another substantial load.
Landlords should treat this range as a planning guide rather than a guaranteed benchmark. The most useful comparison is the property’s own historic consumption, adjusted for weather and occupancy. That provides a baseline against which any control improvements can be measured.
Start with a simple baseline
Gather at least 12 months of bills, note the heating type and record the number of occupied rooms. This makes it easier to distinguish genuine savings from a mild winter or a change in occupancy.
Where HMO heating costs are commonly wasted
Empty rooms on a whole-house schedule. One timer heats every room in the same way, even when only part of the property is occupied.
Open windows with radiators running. Without a feedback loop, the system continues to provide heat while that energy escapes outside.
Manual overrides that remain active. A tenant increases the temperature for an evening and the setting stays high for days or weeks.
Heating that does not reflect daily routines. Fixed schedules are often copied from one season to the next and rarely match the actual use of every bedroom.
Poor visibility for the landlord. Problems are discovered through a large bill, a complaint or a maintenance visit instead of being identified when they begin.
How smart heating controls can cut the bill
How much you save depends on which landlord thermostat you fit and whether it can control rooms separately.
What about electric-heated HMOs?
Electric heating can make wasted energy more expensive because each panel heater or electric radiator may operate independently and electricity usually costs more per unit than gas. Properties without a wet central heating system therefore need controls designed for their actual equipment.
The same principles still apply: room-level scheduling, sensible limits, remote visibility and automatic setbacks. Control HQ provides smart controls for electric heating in HMOs, flats and converted properties.
Compatibility should be checked before equipment is specified. Heater type, electrical load, existing controls, connectivity and the way tenants use each room all influence the right design.
A practical rollout for one HMO or a portfolio
Begin with a survey of the heating system and the way the property is occupied. Decide which rooms need independent zones, how much adjustment tenants should have and who will monitor the system.
For a portfolio, a phased rollout can establish real savings in a representative property before the same configuration is applied elsewhere. Consistent naming, access permissions and maintenance arrangements make future management much easier.
Professional installation and project management reduces the risk of mismatched equipment, unreliable connectivity or settings that do not suit the tenants. After commissioning, review consumption regularly and refine schedules when occupancy changes.
The bottom line for HMO landlords
If you pay the heating bill, you are also paying for every empty room heated unnecessarily and every radiator left high after it is needed. Better controls do not require constant landlord intervention. They simply prevent avoidable waste at system level.
Room-by-room scheduling, sensible limits and remote visibility create a more predictable cost while maintaining comfortable accommodation. The strongest results come from a system that matches the property, is installed correctly and is reviewed against real energy use.
COMMON QUESTIONS
Frequently asked questions
Who usually pays for heating in an HMO?
In many all-bills-included HMOs, the landlord pays the supplier. The exact arrangement should be stated clearly in the tenancy agreement.
How much can a six-bedroom HMO cost to heat?
A typical property may spend around £250 to £450 per month during colder periods. Insulation, heating type, tariffs, occupancy and temperature settings can move the figure significantly.
Can tenants still change the temperature?
Yes. A suitable system can allow local adjustment within a comfortable range set by the property manager, so tenants retain practical control without unlimited settings.
Do smart controls work with electric heating?
Yes, provided the controls are compatible with the installed panel heaters, electric radiators or other equipment. A survey should confirm the correct specification.
How should savings be measured?
Compare consumption with a 12-month baseline and account for occupancy and weather. This gives a more reliable picture than comparing two isolated bills.
Find out what your HMO could save
Control HQ can assess your heating system, occupancy and current controls, then recommend a practical room-by-room solution for one property or a wider portfolio.
