Three-room multi-split in a Wilmslow Victorian terrace
Three Mitsubishi indoor units running off one outdoor condenser, with the pipework routed cleanly through 1880s plasterwork.
Hannah and Marcus bought a four-bedroom Victorian terrace on Chapel Lane in late 2024. South-facing, brick-built, beautiful — and unbearable in summer. They wanted cooling in the master bedroom, the home office, and the open-plan kitchen-diner at the back.
We specified a Mitsubishi multi-split: one MXZ-3F54VFHZ outdoor unit running three MSZ-LN indoor heads (2.5kW + 2.5kW + 5.0kW). The kitchen-diner needed the larger 5kW unit because of the western glazing; the bedroom and office were sized down to the smaller heads.
The hard part was the pipework. Victorian terraces don't have ceiling voids, the plaster is lath-and-horsehair, and the outdoor unit had to go in the side return without obstructing the bin store. Liam ran two of the branches inside trunking painted to match the wall, and the third through a redundant flue void we agreed to repurpose. Total pipework run was 22m across three indoor units.
Three-day install. Commissioning paperwork to Hannah by the Friday evening; first service booked into the diary for the same week in 2027.




What went in.
The bill of materials, in mono. We publish this on every install — it's the same document the customer gets in their commissioning pack.
- Outdoor unit
- Mitsubishi MXZ-3F54VFHZ · 5.4kW
- Bedroom indoor
- Mitsubishi MSZ-LN25VG2 · 2.5kW
- Office indoor
- Mitsubishi MSZ-LN25VG2 · 2.5kW
- Kitchen indoor
- Mitsubishi MSZ-LN50VG2 · 5.0kW
- Total pipework
- 22m across three branches
- Refrigerant
- R32, 2.1kg total system charge
We have a Victorian terrace and three other firms had told us a multi-split wouldn't work without significant disruption. Marshall came out, mapped the route over three visits before they touched a tool, and ended up running the pipework through a redundant chimney void. You can barely see it. The kitchen-diner is comfortable in summer for the first time since we moved in.