Installation 09 · North Crawley, Newport Pagnell (MK16) · November 2026
Two rooms, two Haier heat pumps, one day
This North Crawley bungalow has two south-facing rooms at the back that get warm in summer and are slow to heat in winter. We fitted a separate Haier Tide Plus heat pump in each: a 3.5kW unit in the bedroom and a 2.5kW unit in the dining room. Both heat and cool, and each room has its own remote and Wi-Fi control, so one can be warming while the other is off.
How we fitted it
- Survey. We sized each room separately: 3.5kW for the bedroom and 2.5kW for the dining room.
- Dining room. A back-to-back install: the outdoor unit sits on the other side of the same wall, so the pipework is short and almost nothing shows.
- Bedroom. The water a heat pump collects when it cools couldn’t fall away naturally here, so we fitted a quiet condensate pump with a non-return valve beside the indoor unit.
- Outdoor units. Both on wall brackets high under the eaves, which keeps the patio clear and the units out of the way.
- Vacuum test and commissioning. Each system was pulled down to a deep vacuum and held before the refrigerant was released (bedroom: 388 microns; dining room: 212 microns, both well under the 500 micron target). Heating and cooling were then tested by an F-Gas certified engineer.
Warm air in minutes
In heating mode, the air coming off the indoor unit read about 50°C on an infrared thermometer within minutes of switching on, on a cold November afternoon.
Why two single systems instead of one multi-split
With the two rooms on different walls, two single systems meant each room got the right size of unit, its own outdoor unit and a simple, short pipe run. If one is switched off the other carries on as normal. A multi-split suits homes where the outdoor space is tighter or more rooms are planned later.
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