Heiztechnik
Selected models for local offer
The information is structured from the provided presentation materials: output ranges, configurations, technical options and automation modules.
Heiztechnik models
Two pellet ranges in the portfolio: ONE PLUS and DasPell NEXT.
Pellet boilers
ONE PLUS / ONE PLUS BASIC
Compact model for new homes, with optimized combustion and digital control.
Power range: 8-20 kW (models: 8 / 11 / 15 / 20)
Available in current offer
- Vertical burner with automatic cleaning
- High thermal efficiency (>90%)
- Lambda probe combustion control (HT-tronic OPS Lambda)
- Configurable integrated tank (70 - 240 l)
Pellet boilers
DasPell NEXT / NEXT BASIC
Solution for residential and small commercial projects, with HT-tronic control platform.
Power range: 15-30 kW (models: 15 / 20 / 25 / 30)
Available on order
- 15-30 kW range for varied projects
- Combustion control with Lambda probe
- Automatic heat exchanger cleaning
- Optional automatic ash removal system
ONE PLUS category (8 - 20 kW)
Compact series for residential projects, available in ONE PLUS and ONE PLUS BASIC versions.
ONE PLUS technical story
In modern projects, the boiler room is becoming increasingly compact. The ONE PLUS range is designed exactly for this context: reduced footprint, simple installation and quick component access.
The technical setup includes full automation, HT-tronic intelligent control and Lambda-probe combustion optimization for stable operation across the entire season.
Integrated tanks and multiple construction variants allow adaptation to small spaces without compromising thermal efficiency.
- Vertical burner with automatic cleaning
- High thermal efficiency (>90%)
- Lambda probe combustion control (HT-tronic OPS Lambda)
- Configurable integrated tank (70 - 240 l)
ONE PLUS • 8 - 20 kW
Model: ONE PLUS 8
Nominal output: 8 kW
Output range: 2.8 - 8 kW
Model: ONE PLUS 11
Nominal output: 11 kW
Output range: 2.4 - 11 kW
Model: ONE PLUS 15
Nominal output: 15 kW
Output range: 4.5 - 15 kW
Model: ONE PLUS 20
Nominal output: 20 kW
Output range: 6 - 20 kW
ONE PLUS BASIC • 8 - 20 kW
Model: ONE PLUS BASIC 8
Nominal output: 8 kW
Output range: 2.8 - 8 kW
Model: ONE PLUS BASIC 11
Nominal output: 11 kW
Output range: 2.4 - 11 kW
Model: ONE PLUS BASIC 15
Nominal output: 15 kW
Output range: 4.5 - 15 kW
Model: ONE PLUS BASIC 20
Nominal output: 20 kW
Output range: 6 - 20 kW
ONE PLUS standard equipment
Self-cleaning burner. Automatic heat exchanger cleaning system
In standard configuration
Hydraulic module: WBW pump, 3-way mixing valve with actuator + pump, return protection pump
In standard configuration
Safety group: membrane vessel, safety valve, manometer, venting
In standard configuration
ONE PLUS BASIC equipment
Self-cleaning burner. Mechanical/manual heat exchanger cleaning
In standard configuration
Integrated return protection pump
In standard configuration
Control (both versions)
HT-tronic 900
In standard configuration
HT-tronic 900 Touch
Touch option available
HT-tronic OPS Lambda (combustion optimization with Lambda probe)
In standard configuration
ONE PLUS additional options
Top tank for increased tank capacity
Optional
Side tank for increased tank capacity
Optional
Technical image from Heiztechnik materials: functional points and service zones clearly defined for installation and maintenance.
Sizing visual for different configurations, useful when selecting the right model for the boiler room.
DasPell NEXT category (15 - 30 kW)
Structured technical data for DasPell NEXT and DasPell NEXT BASIC.
DasPell NEXT technical story
DasPell NEXT covers the 15 - 30 kW segment and targets residential and small commercial applications that need higher output while keeping a compact boiler format.
The range uses the HT-tronic platform, optimized iPell/Lambda combustion and automatic heat exchanger cleaning for predictable operation and reduced maintenance.
For projects with extended requirements, an automatic ash removal option is available together with automation extension modules.
- 15-30 kW range for varied projects
- Combustion control with Lambda probe
- Automatic heat exchanger cleaning
- Optional automatic ash removal system
DasPell NEXT • 15 - 30 kW
Model: DasPell NEXT 15
Nominal output: 15 kW
Output range: 4.5 - 15 kW
Model: DasPell NEXT 20
Nominal output: 20 kW
Output range: 6 - 20 kW
Model: DasPell NEXT 25
Nominal output: 25 kW
Output range: 7.5 - 25 kW
Model: DasPell NEXT 30
Nominal output: 30 kW
Output range: 9 - 30 kW
DasPell NEXT BASIC • 15 - 30 kW
Model: DasPell NEXT BASIC 15
Nominal output: 15 kW
Output range: 4.5 - 15 kW
Model: DasPell NEXT BASIC 20
Nominal output: 20 kW
Output range: 6 - 20 kW
Model: DasPell NEXT BASIC 25
Nominal output: 25 kW
Output range: 7.5 - 25 kW
Model: DasPell NEXT BASIC 30
Nominal output: 30 kW
Output range: 9 - 30 kW
DasPell NEXT standard equipment
Self-cleaning burner. Automatic heat exchanger cleaning system
In standard configuration
Hydraulic module: WBW pump, 3-way mixing valve with actuator + pump, return protection pump
In standard configuration
DasPell NEXT BASIC equipment
Self-cleaning burner. Automatic heat exchanger cleaning system
In standard configuration
Integrated return protection pump
In standard configuration
Control (both versions)
HT-tronic 900
In standard configuration
HT-tronic 900 Touch
Touch option available
HT-tronic OPS Lambda (combustion optimization with Lambda probe)
In standard configuration
DasPell NEXT additional options
Automatic ash removal system
Optional
Chimney connectors and automation modules
Shared accessories and control extensions for ONE PLUS and DasPell NEXT ranges.
Chimney connectors ø 120 mm (straight pipes)
Rohr 0,25 m
Straight pipe 0.25 m
Rohr 0,5 m
Straight pipe 0.5 m
Rohr 1 m
Straight pipe 1 m
Chimney connectors ø 120 mm (elbows)
Rohrbogen 45°
Flue elbow 45°
Rohrbogen 90°
Flue elbow 90°
Rohrbogen 90° mit Reiniger
Flue elbow 90° with cleaning element
Automation extension modules
HT-tronic M-Z2
Valve module
HT-tronic M-BC
Buffer and circulation module
HT-tronic Rooms
Room control panel with room thermostat (wired)
HT-tronic Rooms Touch
Touch room control panel with thermostat (wired)
HT-tronic Rooms Wireless
Room control panel with room thermostat (wireless)
HT-tronic Rooms Touch Wireless
Touch room control panel with thermostat (wireless)
HT-tronic Connect
Internet module for control via browser and application
HT-tronic Climate Senso
Wireless sensor for HT-tronic Rooms Touch V2 (temperature, humidity, atmospheric pressure)
HT-tronic Temperature Senso
Wireless sensor for HT-tronic Rooms Touch V2 (temperature)
Note: values and naming are structured from the technical image materials provided. Final configuration and availability are confirmed per project.