STØNE Pro Systems
STØNE Pro
The STØNE Pro is a powerful, high-efficiency, Water-Source Heat Pump, engineered is for large-scale commercial, multifamily, and institutional applications.

STØNE Pro Split
The STØNE Pro Split is a split-system heating and cooling solution tailored for large homes, offices, hotels, and apartment buildings.

The STØNE Pro Complete
The STØNE Pro Complete is an all-in-one heating, cooling, and hot water solution tailored for large homes, offices, hotels, and apartment buildings.

Key Benefits
- Two-component system: outdoor condenser + indoor distribution unit connected by refrigerant or water lines
- Compact indoor cabinets requiring no additional clearance: Pro Split 20 in. x 13 in. (508 x 330 mm) / Pro Complete 24 in. x 24 in. (610 x 610 mm)
- Simple installation — no extensive technical expertise required
- Pro Complete also provides domestic hot water
Options
- Choice of floor-standing/wall-mounted or recessed indoor unit
- Available in five sizes (2–5 tons)
Controllers
- Butler Pro Advanced Controller
Fan coils
STØNE Pro
STONE Pro Diagram
STØNE ensures a continuous supply of domestic hot water where cold water flows through a serpentine-shaped pipe system for instantaneous heating.
Fan coils
Indoor distribution unit
STØNE Pro
STONE Pro Split Diagram
STØNE ensures a continuous supply of domestic hot water where cold water flows through a serpentine-shaped pipe system for instantaneous heating.
Fan coils
Hot water
Hot water
Indoor distribution unit
Cold water supply
STØNE Pro
STONE Pro Complete Diagram
STØNE ensures a continuous supply of domestic hot water where cold water flows through a serpentine-shaped pipe system for instantaneous heating.
Key Specifications
Heating
47°F
- Maximum capacity (Btu/h)
- Nominal capacity (Btu/h)
- Power (kW)
- Efficiency
STØNE Pro 30
- 123
- 103
- 6.8
- 4.4
5°F
- Maximum capacity (Btu/h)
- Nominal capacity (Btu/h)
- Power (kW)
- Efficiency
STØNE Pro 30
- 82
- 65
- 6.3
- 3.0
Cooling
- Maximum capacity (Btu/h)
- Nominal capacity (Btu/h)
- Power (kW)
- Efficiency
STØNE Pro 30
- 120
- 92
- 10.2
- 9.03
Operating Limits
Ambient
Temperature
Heating
- -13°F
- -13°F
- 14°F
- 100°F
- 100°F
Cooling
- 59°F
- 59°F
- 117°F
- 117°F
Entering Water
Temperature
- 68°F
- 95°F
- 113°F
- 113°F
- 68°F
- 59°F
- 59°F
- 117°F
- 117°F
Leaving Water
Temperature
- 77°F
- 113°F
- 113°F
- 131°F
- 77°F
- 45°F
- 77°F
- 77°F
- 45°F
Heating
8°C
- Maximum capacity (kW)
- Nominal capacity (kW)
- Power (kW)
- Efficiency
STØNE Pro 30
- 36.1
- 30.2
- 6.8
- 4.4
-15°C
- Maximum capacity (kW)
- Nominal capacity (kW)
- Power (kW)
- Efficiency
STØNE Pro 30
- 24.0
- 19.1
- 6.3
- 3.0
Cooling
- Maximum capacity (kW)
- Nominal capacity (kW)
- Power (kW)
- Efficiency
STØNE Pro 30
- 35.2
- 27.0
- 10.2
- 9.03
Operating Limits
Ambient
Temperature
Heating
- -25°C
- -25°C
- -10°C
- 38°C
- 38°C
Cooling
- 15°C
- 15°C
- 47°C
- 47°C
Entering Water
Temperature
- 20°C
- 35°C
- 45°C
- 45°C
- 20°C
- 12°C
- 30°C
- 30°C
- 12°C
Leaving Water
Temperature
- 25°C
- 45°C
- 55°C
- 55°C
- 25°C
- 7°C
- 25°C
- 25°C
- 7°C