Stiebel Eltron 187873 SBB 300 Plus Domestic Hot Water Tank
81 Gallon | Dual Heat Exchanger | Solar, Geothermal & Hydronic Integration
The Stiebel Eltron SBB 300 Plus is a premium 81-gallon domestic hot water storage tank engineered for high-efficiency integration with solar thermal, geothermal, and hydronic heating systems. Designed with dual heat exchanger coils and advanced insulation, this indirect-fired tank delivers exceptional heat transfer performance, reduced energy loss, and long-term durability—making it an ideal solution for both residential and light commercial applications.
Advanced Dual Heat Exchanger Design
The SBB 300 Plus features two large internal heat exchanger coils, allowing simultaneous or independent connection to multiple heat sources.
- Top heat exchanger output: up to 111,000 BTU/hr
- Bottom heat exchanger output: up to 150,000 BTU/hr
- Total heat exchanger surface area optimized for rapid heat transfer
This dual-coil design enables high-efficiency operation in solar + boiler or geothermal + auxiliary configurations, maximizing system flexibility and performance.
High-Capacity Hot Water Storage
With an 81-gallon storage capacity, the SBB 300 Plus is designed to meet moderate to high domestic hot water demands:
- Storage capacity: 80.6 gallons (305 liters)
- Maximum recovery rate: approximately 180 gallons per hour
- Suitable for residential homes, multi-family units, and light commercial applications
This ensures consistent hot water availability even during peak usage periods.
Superior Insulation for Maximum Efficiency
The SBB 300 Plus is built to minimize standby heat loss and maintain stored water temperature:
- Up to 3" thick R-21 urethane foam insulation
- Low standby heat loss, approximately 1.9 kWh per 24 hours
- Fully insulated tank design for improved system efficiency
This advanced insulation significantly reduces energy consumption, improving overall system performance.
Durable, Corrosion-Resistant Construction
Engineered for long-term reliability, the SBB 300 Plus incorporates high-quality materials and protective features:
- Heavy-gauge steel tank with porcelain enamel coating
- Magnesium sacrificial anode rod for corrosion protection
- Pressure-tested construction up to 217 psi with a maximum working pressure of 150 psi
This ensures extended service life and dependable performance in demanding environments.
Designed for System Integration Flexibility
The SBB 300 Plus is ideal for complex heating system configurations:
- Compatible with solar thermal, geothermal, and boiler systems
- Separate upper and lower heat exchanger loops for optimized energy input
- Multiple connection points for flexible installation
- Suitable for both residential and commercial applications
This versatility allows for custom system design and efficient energy utilization.
Get the Best Price at ProDryers
Upgrade your hot water system with the Stiebel Eltron SBB 300 Plus and experience high-efficiency performance with flexible system integration.
Buy now at ProDryers for competitive pricing and fast shipping, or request a custom quote to secure the best available price. With expert support and volume discounts, ProDryers is your trusted source for premium water heating solutions.
