Toshiba Sumato 16000 BTU A++ Wall Mounted Split Air Conditioner with Heat Pump
Why buy me
- Powerful 16000 BTU cooling & heating - reversible R32 heat pump (4.2kW cool / 5.0kW heat) for rooms up to 40 m²
- Toshiba DC inverter - variable-speed compressor reaches temperature faster and holds it steadily, cutting running costs vs fixed-speed units
- A++/A+ efficient (UK Average climate) - SEER 6.10 cooling / SCOP 4.00 heating for year-round savings; heat-pump heating beats electric heaters
- Works down to −10°C - reliable heat-pump heating through the British winter
- Magic Coil self-cleaning - slippery coil coating stops dust and dirt sticking, keeping the coil clean, efficient and odour-free
- Self-clean function - dries the indoor coil after shutdown to prevent damp, mould and musty smells
- 8°C heating & High Power modes - frost-protect an empty home in winter, or boost airflow for rapid cooling/heating
- Pipe kit required - not included. Larger 1/2" gas line - needs a 1/4"+1/2" kit; order from Recommended Accessories
The details
Cool and heat, all year round
The Toshiba Sumato 16000 BTU is a wall-mounted split air conditioner and heat pump built on Toshiba’s proven inverter platform - cooling in summer and efficient heat-pump warmth in winter, in rooms up to 40 m². The reversible heat pump system delivers 4.2kW of cooling and 5.0kW of heating and keeps working reliably down to −10°C outside.
Efficient, quiet and long-lasting
A Toshiba DC inverter compressor continuously adjusts its speed rather than switching fully on and off, so the Sumato reaches temperature quicker, runs more quietly and uses less energy than fixed-speed air conditioners - rated A++/A+ (SEER 6.10 / SCOP 4.00, UK Average climate). Toshiba’s Magic Coil treatment keeps the indoor coil clean by stopping dust and dirt sticking to it. After you switch off, the self-clean cycle dries the coil to help prevent mould, damp and musty smells.
Comfort and control on your terms
Choose High Power mode for a rapid blast of cooling or heating, or 8°C heating to frost-protect your home while you’re away over winter. On extremely cold days, on-demand defrost clears the outdoor unit so it keeps working.
Installation & what to order
The indoor and outdoor units are pre-gassed and sealed for a straightforward install by a qualified fitter. A pipe kit is not included - this model uses 1/4" + 1/2" connections (liquid + gas), so add the correct copper pipe & cable kit for your run length (up to 15m) from Recommended Accessories.
F-Gas notice
This unit contains fluorinated greenhouse gas (R32, GWP 675) and must be installed by an F-Gas qualified air conditioning engineer. The gas must be handled by qualified F-Gas personnel. Warranty is subject to commissioning by a qualified F-Gas engineer.
Technical specifications
- Type: Wall-mounted split, reversible heat pump
- Cooling capacity: 4.2 kW (range 1.2–4.7 kW)
- Heating capacity: 5.0 kW (range 1.3–6.0 kW)
- SEER (cooling): 6.10 (A++)
- SCOP (heating): 4.00 (A+)
- Refrigerant type: R32
- Refrigerant charge: 680 g (0.68 kg)
- Global Warming Potential (GWP): 675
- Liquid pipe diameter: 1/4" (6.35 mm)
- Gas pipe diameter: 1/2" (12.7 mm)
- Pipe kit required: 1/4" + 1/2" (not included)
- Maximum pipe length: 15 m
- Minimum operating temperature: -10°C (heating)
- Indoor unit dimensions (W × H × D): 798 × 293 × 230 mm
- Indoor unit weight: 10 kg
- Outdoor unit dimensions (W × H × D): 780 × 550 × 290 mm
- Outdoor unit weight: 26 kg
- Colour: White
- Warranty: 2 years
What's in the Box
- 1 × Indoor Unit
- 1 × Outdoor Unit
- Indoor Mounting Plate / Wall Bracket
- Remote Control
- User Manual
Not Included:
- Pipe & Cable Kit (1/4" + 1/2") – required and sold separately
- Toshiba Wi-Fi Adapter
- Outdoor Wall-Mounting Bracket
Recommended Accessories
- 1/4" + 1/2" Pipe & Cable Kit – required for installation; choose the appropriate length for your installation
- Optional Infra‑Red to Wi‑Fi Adapter (SremoteTHSB) and Human‑Presence Sensor (SWsensor)
- Outdoor Wall-Mounting Bracket
- Floor Stand Base / Anti-Vibration Feet
Question from Ash: Asked on 10/08/2026 How much does this cost to run
Hi, As a guide, the Toshiba RAS16 has a SEER of 6.10 for cooling and SCOP of 4.00 for heating. At an electricity rate of 26.11p/kWh, this equates to approximately 18p per hour for cooling and 33p per hour for heating, based on its rated seasonal efficiency. Actual running costs will vary depending on room size, insulation, outdoor temperature, desired temperature and usage, as the inverter adjusts its output to maintain the set temperature.
Thank you.