The RS 5 series covers the 80-345 kW range and is available in three versions: single-stage RS5, two-stage RS5D and modulation RS5/M. The design is common — only the power control method differs, so the design is adapted to the operating mode of the boiler.

| Manufacturer | ExEco |
| Series | RS 5 / RS 5D / RS 5/M |
| Burner type | Monoblock — three versions according to the type of regulation |
| Heat output | 80-345 kW |
| Fuel type | Natural gas; LPG (after conversion) |
| Control type | RS5 — single-stage; RS5D — two-stage; RS5/M — modulating with mechanical control |
| Power supply | 230 V, 50 Hz, single-phase |
| Control system | Microprocessor control and safety unit with fault diagnostics |
| Flame monitoring | Ionisation probe, electrode ignition |
| Combustion head | Stainless steel blast tube, flame stability disc |
| Emission class | Class 2 to GOST EN 676-2016 — NOx ≤ 120 mg/kWh |
| Connection | Flanged, with heat shield and fixing kit |
| Scope of supply | Burner, gas train adapter, gasket, heat shield, fixings, data sheet and manual |
| Model | Heat output, kW | Part number |
| RS 5 | 160÷330 | BU010050 |
| RS 5D (LME21) | 160/208÷345 | BU010090 |
| RS 5D (MG569) | 160/208÷345 | BU010095 |
| RS 5/M | 80/160÷330 | BU010120 |
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