The Bosch 13H Instant Gas Hot Water System (TF325-8G) is a compact and efficient continuous flow unit that utilises HydroPower ignition technology—requiring no electricity to operate. It is powered by water flow, making it ideal for energy-conscious homes and off-grid installations. With a delivery rate of 13 litres per minute at a 25°C temperature rise, it offers a reliable hot water solution for smaller households. This external system is equipped with advanced safety features and delivers hot water only when needed, reducing energy waste.
FEATURES:
Heating Method:
Gas burner with HydroPower ignition – no mains power required
Hot Water Supply:
Continuous flow – heats water on demand
Recovery Time:
Instantaneous – water is heated as it flows through the system
Installation Location:
Outdoor wall-mounted installation only
Water Pressure:
Energy Efficiency:
N/A – Star rating not specified
Operating Costs:
Economical operation as it heats only when required; no pilot light or standby energy use
Best for:
Number of Bathrooms and People (Capacity):
Additional features:
| Hot Water Delivery | 13 L/min at 25°C rise |
| Gas Consumption | 104 MJ/h (Natural Gas or LPG) |
| Weight (Empty) | 22 kg |
| Height | 845 mm |
| Width | 405 mm |
| Depth | 240 mm |
| Manufacturers Tank Warranty (Domestic | 10 years on heat exchanger (parts only) |
| Manufacturers Parts & Labour Warranty (Domestic) | 2 Years |
| Powerpoint Required: | No |
| Gas Connection: | Natural Gas: 3/4" LPG: 1/2" |
| Hot Water Connection: | 1/2" BSP |
| Water flow range: | 4 to 13 L/min |
| Temperature rise (max setting): | 50°C |
| Temperature rise (min setting): | 25°C |
| Minimum ignition flow rate: | 3.2 L/min |