PresentationThe new Lean series inserts from Spartherm are engineered for installations with limited depth or lower heat requirements. The appliance depth has been significantly reduced while maintaining a generous combustion chamber: the result is minimal footprint with a maximized fire experience at modest heat output. The compact format promotes efficient and sustainable wood combustion. The Lean 2R-70h features a Premium door profile with a comfortable lifting mechanism: the panes slide up or down smoothly and quietly. For cleaning, the larger pane can be tilted forward. With a small flue connection diameter (150 mm), the insert suits smaller chimney ducts. Fitted with L-shaped glazing, the Lean 2R-70h is ideal as a corner solution; on this model the smaller side pane is on the right.
Advantages- Even crackling and flame behaviour
- Generous viewing thanks to large glazed surfaces
- A true focal point in the room
- Digitally controllable and app-manageable
- Heat storage options for economical heating
- Automatic glass opening
Colours and variants- Ivoire firebrick lining
- Black firebrick lining
- Corner variant with L-shaped glazing (small side pane on the right)
- Related variant: Lean 2L-70h (opposite orientation)
CAIR assistance functions (options)- S-ELA
- S-AKKU (additional storage elements)
- S-THERMATIK NEO
- S-ESAM 3.0
- S-USI 3.0
Data from the tableFuel: Wood
Glass shape: L-shaped
Door hinge: bottom connection
Energy efficiency class: A+
Thermal output: 5.5 to 10.3 kW
Room-air independent (RLU): optional
Features / technical specifications- Fuel: Wood
- Format: compact, reduced depth for installation in restricted spaces
- Glazing: L-shaped glazing, large tilting pane for cleaning
- Orientation: 2R model = smaller side pane on the right (2L variant available)
- Door hinge: bottom connection (lifting mechanism, Premium door profile)
- Flue connection: 150 mm diameter
- Nominal thermal output: 5.5 to 10.3 kW (some versions referenced at 7.9 kW in technical documents)
- Energy efficiency class: A+
- RLU (room-air independent): optional
- Assistance functions and options: electronic and automatic controls, thermal storage solutions (S-AKKU), S-THERMATIK NEO management, automatic sliding doors (S-ESAM), pressure switch (S-USI)
- User comfort: quiet glass opening/closing, digital control and app operation
- Durable design: format promotes efficient combustion and sustainable fuel use