S28i Solar Booster
S28i Solar Booster
Servicing multiple fixtures at once
The S28i Solar Gas Booster combines the cutting-edge technology of our renowned Infinity Gas Hot Water systems with advanced intelligence designed specifically for solar boosting.
Ideal for use with Sunmaster or Prestige Solar Hot Water Systems, the S28i ensures a reliable supply of hot water, even during periods of low solar energy. Factory set to 70°C and capable of delivering a generous 28 litres per minute, it’s perfect for servicing multiple fixtures in busy households. Its compact internal design is ideal for homes with limited external space.
Featuring built-in status monitoring, the S28i provides efficient, high-performance operation and long-lasting, energy-smart comfort.
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Designed specifically for solar
Never runs out of hot water
12 year heat exchanger warranty
Superior technology
- Quality Japanese design and manufacturing
- Precise temperature control for safety and convenience
- Compact design allows installation flexibility
- Suitable for higher ambient water temperatures
- Compatible with low flow rated shower fixtures (3 Star - 7.0 to 9.0 l/min)
Rinnai quality
- After sales support
- 12 year warranty on heat exchanger
Related products
★ Sunmaster Solar Hot Water Systems
★ Prestige Solar Hot Water Systems
★ Hot Water Flue system
| Rinnai – S28i Solar Booster | Unit | Values | ||
| Dimensions | Height | mm | 583 | |
| Width | 357 | |||
| Depth | 245 | |||
| Height including Brackets | 648 | |||
| Hot Water Outlet | From Wall | 91 | ||
| Left from Centre | 110 | |||
| Cold Water Inlet | From Wall | 70 | ||
| Right from Centre | 27 | |||
| Gas Connection | From Wall | 99 | ||
| Right from Centre | 89 | |||
| Length from Base | 36 | |||
| Hot Connection | Length from Base | 36 | ||
| Cold Connection | Length from Base | 46 | ||
| Colour | White | |||
| Energy Rating | Stars | N / A | ||
| Connection Sizes | Gas | mm | 20 | |
| Hot | 20 | |||
| Cold | 20 | |||
| Flow Rate | Maximum | L / min | 28 | |
| Gas Rate | Maximum | MJ / h | 210 | |
| Water Pressure | Minimum | kPa | 220 | |
| Maximum | 1000 | |||
| Factory Default Temperature | °C | 70 | ||
| Status Monitor | Yes | |||
| Compatible with Water Controllers | No | |||
Note: Can NOT be used as a stand alone continuous flow water heater
Photography
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Rinnai Infinity Gas Continuous Flow Hot Water S28i Solar Booster (right grey background)Preview
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Rinnai Infinity Gas Continuous Flow Hot Water S28i Solar Booster (front)Preview
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Rinnai Infinity Gas Continuous Flow Hot Water S28i Solar Booster Controller (close up)Preview
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Rinnai Infinity Gas Continuous Flow Hot Water S28i Solar Booster (right)Preview
PDF
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Gas Continuous Flow Hot Water S28i/32 Solar Booster Operation and Installation Manual Preview
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Gas Continuous Flow Hot Water S28i Solar Booster Technical Information Preview
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Gas Continuous Flow Hot Water Flue Installation Manual Preview
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Gas Continuous Flow Hot Water Error Codes Preview
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Solar Hot Water Warranty Booklet Preview