The Robur Next-R series are modulating gas fired unit heaters with a premix burner, for heating industrial and commercial spaces such as workshops, warehouses and laboratories. Seven axial fan models cover 15.5 to 84 kW heat input with throws of 13 to 40 m, plus vertical downflow and ductable centrifugal versions, with efficiency up to 97.8% at minimum input.
| Models | Robur Next-R 15, 20, 30, 40, 50, 60 and 80 axial fan unit heaters; 30 V to 50 V downflow and 30 C to 80 C ductable centrifugal versions |
|---|---|
| Heat input | 15.5 to 84.0 kW nominal, 10.3 to 54.0 kW minimum |
| Heat output | 14.1 to 76.4 kW nominal, 9.9 to 52.6 kW minimum |
| Efficiency | 91 to 91.5% at nominal input, up to 97.8% at minimum input |
| Air flow and throw | 2,250 to 9,000 m³/h, horizontal throw 13 to 40 m (axial models) |
| Burner | Premix burner with self-adapting air to gas ratio, low NOx and CO, 2-level modulation with the Thermoregulator |
| Gas | Natural gas G20 1.64 to 8.89 m³/h, LPG G31 1.20 to 6.53 kg/h |
| Flue | 80 mm flue exhaust and combustion air intake |
| Electrical and weight | 230 V single phase 50 Hz, 0.18 to 0.60 kW absorbed, 26 to 91 kg (axial models) |
| Brand | Robur, Genius centralised control for up to 100 units |
The Robur Next-R series is a range of gas fired warm air unit heaters with a premix modulating burner, built for efficient heating of industrial spaces of any size, including workshops, warehouses and laboratories without flammable materials. Seven axial fan models, the R 15, R 20, R 30, R 40, R 50, R 60 and R 80, cover nominal heat inputs from 15.5 to 84 kW, with air flows of 2,250 to 9,000 m³/h and horizontal throws of 13 to 40 m. Vertical downflow versions (30 V, 40 V, 50 V) and ductable centrifugal fan versions (30 C, 40 C, 50 C, 80 C) are also available.
The premix burner uses a self-adapting air to gas ratio for low NOx and CO emissions, and with Robur’s Thermoregulator the heaters modulate automatically between two output levels. Efficiency is 91 to 91.5% at nominal input, rising to as much as 97.8% at minimum input. Robur’s Comfort Zone heat exchanger design is intended to reduce heat stratification, and the units are around 25% lighter than comparable heaters, at 26 to 91 kg for the axial models. They run on natural gas or LPG with an 80 mm flue and air intake, and can be managed individually or centrally through Robur’s Genius system, which controls up to 100 units. For condensing models see the Robur Next-G condensing heaters, and for other options see our tubular unit heaters.
Harold Engineering supplies, installs and commissions Robur heating equipment as part of complete heating systems from our Dublin and Galway bases, with 15 OEM trained field service engineers and a 24 hour breakdown callout service. Contact us to size heaters for your building.
| Models | Robur Next-R 15, 20, 30, 40, 50, 60 and 80 axial fan unit heaters; 30 V to 50 V downflow and 30 C to 80 C ductable centrifugal versions |
|---|---|
| Heat input | 15.5 to 84.0 kW nominal, 10.3 to 54.0 kW minimum |
| Heat output | 14.1 to 76.4 kW nominal, 9.9 to 52.6 kW minimum |
| Efficiency | 91 to 91.5% at nominal input, up to 97.8% at minimum input |
| Air flow and throw | 2,250 to 9,000 m³/h, horizontal throw 13 to 40 m (axial models) |
| Burner | Premix burner with self-adapting air to gas ratio, low NOx and CO, 2-level modulation with the Thermoregulator |
| Gas | Natural gas G20 1.64 to 8.89 m³/h, LPG G31 1.20 to 6.53 kg/h |
| Flue | 80 mm flue exhaust and combustion air intake |
| Electrical and weight | 230 V single phase 50 Hz, 0.18 to 0.60 kW absorbed, 26 to 91 kg (axial models) |
| Brand | Robur, Genius centralised control for up to 100 units |
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