The Bosch 4000s External is an electronically controlled continuous flow water heater, designed for an easy change-over from Bosch Pilot & HydroPower models.
3 Years – Parts and Labour
10 Years – Heat Exchanger (part only)
| Robust solution for commercial applications |
| Commercial grade components throughout |
| 4.8 Star energy efficiency |
| Available in 32L/min capacity |
| Available in natural gas and LP gas variants |
| 1 bathroom homes /single occupant. |
| Standing pilot light (traditional design) and operation |
| Continuous flow design |
| No 240 volt power required |
| Designed for external installation only |
| 10L/minute capacity |
| Attractive alternative to storage water heater when no power required |
| Bosch C21 |
| Gas Hot Water System |
| 1 to 2 Bathrooms |
| 5.56 Star Energy Rating |
| 21 Litre Per Minute |
| Flow Rate |
| 3 Years |
| Parts & Labour Warranty |
| 10 Years |
| Heat Exchanger Warranty |
| Antifrost |
| Natural Gas or LPG |
| External Installation |
