Next-G Series
Modulating wall-mounted condensing gas unit heater
The best value-for-money heating solution available thanks to condensation.
Benefits
- Up to 106% thermal efficiency with savings of up to 25% compared to alternative systems thanks to condensation.
- Heat is quickly available in 30 minutes–even in the largest rooms.
- It features the latest-generation electronics with advanced management functions as well as the possibility of centralised and remote management.
- Greater comfort thanks to the heat output (from 100% to 30%) and modulation.
- Reduced CO and NOx emissions thanks to an optimal air-to-gas ratio of the premix burner.
- Also available with brushless fans to guarantee better comfort, noise reduction and reduced electricity consumption.
- Safety and reliability with Type C certification. The combustion circuit is completely isolated from the installation environment and the combustion air is taken from outside, leaving the oxygen present in the rooms untouched.
- Certified for operation with hydrogen mixtures up to 20%.
Versions
NEXT-G
A range of modulating heat output condensing gas unit heaters with fixed air flow AC fans.
NEXT-G EC
An extended series of condensing gas unit heaters modulating both the heat output and ventilation, equipped with electronically controlled fans. This model gives you:
- lower noise levels
- lower energy consumption
- constant outlet air Delta T
- fixed or modulating air flow
NEXT-G C
A range of modulating heat output condensing gas unit heaters with centrifugal fixed air flow fans.
Applications
Ideal for efficiently heating workshops, industrial, and commercial buildings. The system’s modularity makes it perfect for places where no flammable materials are present.
Technical table
NEXT-G
Heat output Next-G 30: nominal kW 27.4 - minimum kW 9.9
Heat output Next-G 45: nominal kW 41.4 - minimum kW 14.5
Heat output Next-G 60: nominal kW 56.6 - minimum kW 19.5
Heat output Next-G 90: nominal kW 87.3 - minimum kW 28.6
Efficiency Next-G 30: nominal heat input 97.8% - minimal heat input 106.8%
Efficiency Next-G 45: nominal heat input 96.2% - minimal heat input 105.3%
Efficiency Next-G 60: nominal heat input 97.5% - minimal heat input 105.2%
Efficiency Next-G 90: nominal heat input 97.0% - minimal heat input 106.1%
Air flow - nominal (ΔT = 15 °C) Next-G 30: max. 2,450 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 45: max. 3,450 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 60: max. 5,660 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 90: max. 9,100 m3/h
Electrical power absorption Next-G 30: kW 0.21
Electrical power absorption Next-G 45: kW 0.35
Electrical power absorption Next-G 60: kW 0.61
Electrical power absorption Next-G 90: kW 1.00
Ambient air temperature (minimum/maximum): 0/40 °C
Flue gas exhaust - diameter (Ø): mm 80
Combustion air intake connection - diameter (Ø): mm 80
NEXT-G C
Air flow Next-G 30 C: at maximum available head: m3/h 2,500 - free blowing: m3/h 3,500
Air flow Next-G 60 C: at maximum available head: m3/h 5,400 - free blowing: m3/h 6,500
Maximum useful pressure head Next-G 30 C: Pa 140
Maximum useful pressure head Next-G 60 C: Pa 120
Minimum pressure drop on heat flow delivery: Pa 0
NEXT-G EC
Heat output Next-G 20 EC: nominal kW 19.0 - minimum kW 8.5
Heat output Next-G 30 EC: nominal kW 27.4 - minimum kW 9.9
Heat output Next-G 35 EC: nominal kW 33.4 - minimum kW 13.1
Heat output Next-G 45 EC: nominal kW 41.4 - minimum kW 14.5
Heat output Next-G 60 EC: nominal kW 56.6 - minimum kW 19.5
Heat output Next-G 75 EC: nominal kW 72.0 - minimum kW 26.2
Heat output Next-G 90 EC: nominal kW 87.3 - minimum kW 28.6
Efficiency Next-G 20 EC: nominal heat input 97.5% - minimal heat input 105.5%
Efficiency Next-G 30 EC: nominal heat input 97.8% - minimal heat input 106.8%
Efficiency Next-G 35 EC: nominal heat input 96.9% - minimal heat input 106.5%
Efficiency Next-G 45 EC: nominal heat input 96.2% - minimal heat input 105.3%
Efficiency Next-G 60 EC: nominal heat input 97.5% - minimal heat input 105.2%
Efficiency Next-G 75 EC: nominal heat input 96.0% - minimal heat input 105.0%
Efficiency Next-G 90 EC: nominal heat input 97.0% - minimal heat input 106.1%
Air flow - nominal (ΔT = 15 °C) Next-G 20 EC: max. 2,300 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 30 EC: max. 2,450 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 35 EC: max. 2,735 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 45 EC: max. 3,450 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 60 EC: max. 5,650 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 75 EC: max. 5,400 m3/h
Air flow - nominal (ΔT = 15 °C) Next-G 90 EC: max. 9,100 m3/h
Electrical power absorption Next-G 20 EC: kW 0.19
Electrical power absorption Next-G 30 EC: kW 0.19
Electrical power absorption Next-G 35 EC: kW 0.18
Electrical power absorption Next-G 45 EC: kW 0.39
Electrical power absorption Next-G 60 EC: kW 0.41
Electrical power absorption Next-G 75 EC: kW 0.39
Electrical power absorption Next-G 90 EC: kW 0.75
Ambient air temperature (minimum/maximum): 0/40 °C
Flue gas exhaust - diameter (Ø): mm 80
Combustion air intake connection - diameter (Ø): mm 80
Controllers
1-Key basic control
1-Key basic control + Digital programmable chronothermostat
Thermoregulator + Centralised chronothermostat
1-Key basic control + Room thermostat
2-Key basic control + Room thermostat
2-Key basic control + Digital programmable chronothermostat
Thermoregulator
Thermoregulator + Genius software
Touch screen remote control
Modbus
Final user literature
Professional user literature
Design manual | Next-R Series, Next-G Series, M Series
Section A01 - Definitions and general concepts
Design manual | Next-R Series, Next-G Series, M Series
Section B01 - G Series Heater
Design manual | Next-R Series, Next-G Series, M Series
Section B02 - K Series Heater
Design manual | Next-R Series, Next-G Series, M Series
Section C01 - Index
Design manual | Next-R Series, Next-G Series, M Series
C01.01 Section - Sizing criteria
Design manual | Next-R Series, Next-G Series, M Series
C01.02 Section - Flue gas collection
Design manual | Next-R Series, Next-G Series, M Series
C01.03 Section - Flue accessories
Design manual | Next-R Series, Next-G Series, M Series
C01.04 Section - Adjustment and control
Design manual | Next-R Series, Next-G Series, M Series
C01.05 Section - Support brackets
Design manual | Next-R Series, Next-G Series, M Series
C01.06 Section - Vertical grilles
Design manual | Next-R Series, Next-G Series, M Series
C01.07 Section - Air ducting
Design manual | Next-R Series, Next-G Series, M Series
C01.08 Section - Fan characteristics
Design manual | Next-R Series, Next-G Series, M Series
C01.09 Section - Installation criteria
Design manual | Next-R Series, Next-G Series, M Series
C01.10 Section - Gas supply
Design manual | Next-R Series, Next-G Series, M Series
C01.11 Section - First start-up
Design manual | Next-R Series, Next-G Series, M Series
C01.12 Sections - Maintenance
Design manual | Next-R Series, Next-G Series, M Series
C01.13 Section - ErP
