Cooling and Heat All Year Round
The Toshiba Sumato 18000 BTU is a wall-mounted split air conditioner and heat pump built on Toshiba’s proven inverter platform - cooling in summer and providing efficient heat-pump warmth in winter, in rooms up to 50 m². The reversible heat pump system delivers 5.0kW of cooling and 5.4kW of heating, and keeps working reliably down to -10°C outside.
Enjoy a quieter, more comfortable home environment that lasts. 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 an outstanding A++ for cooling and A+ for heating (SEER 6.10 / SCOP 4.00, UK climate), it comfortably beats traditional electric heaters for year-round savings.
Intelligent Cooling, Heating & Air Quality
Designed to bring you absolute comfort on your terms, the Toshiba Sumato boasts intuitive features that protect your home, clean the air, and offer rapid temperature control without the hefty running costs.
Powerful 18000 BTU Output
Brilliantly versatile. Delivering 5.0kW of cooling and a robust 5.4kW of heating, this reversible R32 heat pump effortlessly handles rooms up to 50m² and performs reliably down to -10°C.
Toshiba DC Inverter
Work smarter, not harder. The variable-speed compressor reaches your ideal temperature quickly and holds it steadily, cutting running costs compared to traditional fixed-speed units.
A++/A+ Efficiency
Enjoy superb year-round savings. With a SEER of 6.10 and SCOP of 4.00 (UK climate), this highly efficient system effortlessly beats electric heaters when it comes to energy usage.
Magic Coil Technology
A specially designed slippery coil coating stops dust and dirt from sticking. This keeps the internal coil sparkling clean, highly energy efficient, and completely odour-free.
Self-Clean Function
Breathe fresher, healthier air. Once switched off, the unit automatically runs a self-clean cycle to thoroughly dry the indoor coil, preventing damp, mould, and musty smells.
Complete Climate Control
Choose High Power mode for rapid cooling or heating, or use 8°C Heating mode to help protect your home from frost while you are away during winter. On particularly cold days, the on-demand defrost function clears the outdoor unit to maintain reliable performance.
Downloads
User manualWhat's in the Box
- 1 × Toshiba Sumato 18000 BTU Indoor Unit
- 1 × Toshiba Sumato 18000 BTU Outdoor Unit
- 1 × Indoor Mounting Plate / Wall Bracket
- 1 × Remote Control
- 1 × User Manual
- Note: A 1/4" & 1/2" Pipe & Cable Kit is required for installation and is sold separately. Outdoor Wall-Mounting Bracket is also not included.
Recommended Accessories
- 1/4" + 1/2" Pipe & Cable Kit (choose length up to 15m)
- Optional Infra-Red to Wi-Fi Adapter (SremoteTHSB)
- Optional Human-Presence Sensor (SWsensor)
- Outdoor Wall-Mounting Bracket
- Floor Stand Base / Anti-Vibration Feet
Key Specifications
- Cooling / Heating Capacity: 5.0 kW / 5.4 kW
- Energy Rating: A++ (Cooling) / A+ (Heating)
- Room Coverage: Ideal for up to 50m²
- Indoor Dimensions: 798 × 293 × 230 mm (10 kg)
- Outdoor Dimensions: 780 × 550 × 290 mm (29 kg)
- Refrigerant: R32 (930 g)
- Pipe Kit Required: 1/4" (Liquid) + 1/2" (Gas)
- Max Pipe Length: 15 m
- Min Operating Temp: -10°C Outdoor
- Smart Connectivity: Wi-Fi Ready (optional adapter required)
- Warranty: 2 Years
Installation & Technical Advice
Important: Pipe & Cable Kit Required Please note that a specific Pipe & Cable Kit (larger 1/2" gas line - needs a 1/4" liquid + 1/2" gas connections) is essential for the installation of this unit, but it is not included in the box. You will need to order the correct kit for your required run length (up to a maximum of 15m) from the Recommended Accessories section before booking your installation engineer. The indoor and outdoor units are pre-gassed and sealed for a straightforward install by a qualified fitter.
F-Gas Installation Required This unit contains fluorinated greenhouse gas (R32, GWP 675) and must be installed by an F-Gas qualified air conditioning engineer. Refrigerant handling must be carried out by qualified F-Gas personnel in accordance with regulations. Please note that the 2-year warranty is subject to proper commissioning by a qualified F-Gas engineer.
Toshiba Sumato 18000 BTU A++ Wall Mounted Split Air Conditioner with Heat Pump
Why buy me
•Powerful 18000 BTU cooling & heating - reversible R32 heat pump (5.0kW cool / 5.4kW heat) for rooms up to 50 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 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
Cooling and Heat All Year Round
The Toshiba Sumato 18000 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 50 m². The reversible heat pump system delivers 5.0kW of cooling and 5.4kW 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 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 rapid cooling or heating, or use 8°C Heating mode to help protect your home from frost while you are away during winter. On particularly cold days, the on-demand defrost function clears the outdoor unit to maintain reliable performance.
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. Refrigerant handling must be carried out by qualified F-Gas personnel. Warranty is subject to commissioning by a qualified F-Gas engineer.
Technical specifications
• Cooling capacity: 5.0 kW (range 1.3 / 5.5 kW)
• Heating capacity: 5.4 kW (range 1.0 / 6.0 kW)
• SEER / SCOP: 6.10 / 4.00
• Energy rating: A++ cooling / A+ heating
• Refrigerant type: R32
• Refrigerant charge: 930 g (0.93 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 outdoor
• 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: 29 kg
• Smart connectivity: Wi‑Fi Ready (optional adapter required)
• 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
• 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
