Common situation
Three rooms and no outdoor unit possible: which air conditioning suits?
A living room and two bedrooms, permanent changes fine but no outdoor condenser possible.
Our planner's best match
Fixed monobloc air conditioner
Fixed AC without a separate outdoor unit
This looks like the best fit because you expect to use it regularly through summer, a separate outdoor unit isn't an option and permanent changes are fine.
Excellent match. A clear lead over the next option — the answer you weren't sure of doesn't change it.
- Indicative cost
- £3,200–£6,900 installed
- our estimator, not a quotation
- Comfortable for regular summer use
- No separate outdoor condenser
- A permanent, tidy indoor solution
The situation, as the planner sees it
- 2–3 rooms
- living room, large; bedroom, medium; bedroom, medium
- Fixed or removable
- Open to fixed install
- Permanent changes OK
- No outdoor unit
- Not sure of window type
- Regular summer use
- Heating nice to have
Also worth considering
| System | Indicative cost | Against the best match | Verdict |
|---|---|---|---|
| Window air conditioner | £900–£2,700 to buy | Less building work | Possible, not our first choice |
| Portable air conditioner | £750–£2,100 to buy | Louder indoors · Dearer to run · Less building work | Possible, not our first choice |
Why not the others
- Single-split air-to-air heat pump — it needs a separate outdoor unit.
- Multi-split air-to-air heat pump — it needs a separate outdoor unit.
- Ducted air conditioning — it needs a separate outdoor unit.
What would change this?
- If you could definitely fit an outdoor unit → Single-split air-to-air heat pump £4,500–£9,300 installed
Questions people ask
Which air conditioning suits three rooms and no outdoor unit possible?
Fixed monobloc air conditioner. This looks like the best fit because you expect to use it regularly through summer, a separate outdoor unit isn't an option and permanent changes are fine.
How much does fixed monobloc air conditioner cost for this?
Indicatively £3,200–£6,900 installed. That is from Airva's versioned cost estimator for a typical installation, not a quotation.
What would change the recommendation?
If you could definitely fit an outdoor unit, it would be single-split air-to-air heat pump (£4,500–£9,300 installed).