A tutor room at home is one room, two or three people, and a door that opens between lessons. One small reverse-cycle split is the proportionate machine. Put the outdoor unit away from the pupil entrance if you can, so parents are not standing under a fan while they wait. Size the closed room, not the whole house. Energy Saving Trust describes these units as air-to-air heat pumps when they heat as well. HSE workplace temperature guidance applies because you are working, and it does not require a particular brand of indoor unit.
A closed hour in one small room
Lessons happen with the door shut, then the door opens and the next pupil comes in. The unit should recover a single room, often in the 2.0 to 3.5 kW class after a survey, not a classroom system. Aim the air over the table, not at the chair where a child sits still. Fan speed on low or medium is kinder than a blast. Set a normal setpoint. Energy Saving Trust describes these units as air-to-air heat pumps when they heat as well. Heating as well as cooling matters if you teach through winter. HSE workplace temperature guidance applies because you are working. It does not require a particular brand of indoor unit, and you do not inherit a school plant room.
The pupil door and the gap between lessons
The side door, the porch and the place parents hover are the wrong face for a condenser. Noise and a plume of warm air in summer make the wait unpleasant, and they advertise the unit to the street. A rear wall or a ground stand in the garden is usually calmer. In England, check Planning Portal conditions before you hang it on a boundary. If the only lawful spot is near that door, say so and ask about a quieter model and anti-vibration mounts. Do not solve it by burying the unit in a plant that blocks the coil. Leaves and a blocked face are a later failure, not a soundproofing method.
A ten-minute gap with the door open will warm the room. That is a timetable, not a fault. Close the windows while it cools. If you need a breath of air, do it with the unit off, then shut and start again. Teach anyone else in the house not to set 16C when they borrow the remote. F-gas rules apply to the install even though the address is a home. How many people sit in the room belongs in the survey. The reply should name kilowatts and the outdoor spot, not a multi-room system for a single table.
Frequently asked questions
Do I need a commercial unit because pupils visit?
No. One domestic split sized for the room is the usual answer. The workplace duty is reasonable comfort, which a small system can provide. You do not inherit a school plant room.
Can the outdoor unit go by the front door to shorten the pipes?
Only if that is not where pupils wait, and the siting is lawful. A short pipe next to a waiting parent is a poor trade. Ask for another elevation.
Should I leave it running between every lesson?
You can, at a normal setpoint with the door shut again as soon as the next pupil is in. Leaving 16C on with the window cracked wastes the kilowatts and does not speed the next hour.
Will a hallway indoor unit hold the teaching room?
No. A hallway head will not hold the room once you close the door for the hour. One indoor unit for the teaching room is the proportionate machine.
Does 16C cool the gap between lessons faster?
No. 16C does not cool the gap between lessons any faster. The unit delivers its kilowatts either way. Use a normal setpoint and a low or medium fan.
Can a pupil be in the room while they drill?
A pupil's presence on install day is a bad idea. Book the drill for a half term or a Saturday with the room empty. If you rent, get the landlord's consent before a survey becomes a hole. Ask for handover when no pupil is due.
Core buying guides
Start with these high-intent guides, then dig into the rest of the library.
Related guides
Sources and further reading
How this guide was prepared
This guide was written by the Local AC Installers Editorial Team. We compare official guidance, legislation and established consumer information, separate general information from project-specific advice, and show publication dates and sources. We do not accept installer accreditation claims at face value.