300-liter hot water storage tank with high-performance heat exchanger for heat pumps
The SUNEX FISH S15 300 X is a vertical hot water storage tank with a 300-liter capacity, specially designed for use with heat pumps. Thanks to its large-surface heat exchanger (3.2 m²) and high-quality enamel coating according to DIN 4753, this storage tank ensures reliable and hygienic hot water preparation for your home.
✅ Your advantages at a glance:
Large high-performance heat exchanger: 3.2 m² heat exchanger surface for efficient heat transfer
High-quality enamel coating: DIN 4753-compliant protective layer for long-lasting corrosion protection
Magnesium anode: Additional protection against corrosion (titanium anode available as an option)
Excellent thermal insulation: 50 mm PUR foam insulation minimizes heat loss
Standard equipment: Inspection opening, thermometer, couplings for Electric heating element
Robust construction: Material S235JR with automatic welding
Versatile application: Ideal for heat pumps and solar thermal systems
📊 Technical data SUNEX FISH S15 300 X:
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Capacity:
300 liters
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Efficiency coefficient NL:
27.8
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Constant output (80/10/45):
83 kW or 2040 l/h
| Max. operating temperature: |
95°C (storage tank) / 110°C (heat exchanger) |
| Max. Operating pressure:
10 bar (storage tank) / 16 bar (heat exchanger)
Heat exchanger capacity:
17.6 liters
Heat exchanger surface area:
3.2 m²
Insulation:
50 mm polyurethane foam
Diameter with insulation:
657 mm
Storage tank diameter without insulation:
550 mm |
| Storage height: |
1472 mm |
Weight (empty): |
131 kg |
Cold/Hot water connections: |
1" Rp (internal thread) |
Heat pump connections: |
1" Rp (flow/return) |
Circulation connection: |
3/4" Rp |
| Inspection opening: |
125/180 mm |
🔧 Material and Protection:
- Material: S235JR steel
- Automated welding for highest quality
- High-quality enameling according to DIN 4753
- Magnesium anode (optional titanium anode)
- Outer casing in gray color
- CFC-free rigid polyurethane foam
Note: All technical data is provided by the manufacturer SUNEX and corresponds to the product specifications.