Rinnai Infinity A28i Continuous Flow Gas Hot Water
The Rinnai INFINITY A-Series are continuous flow hot water systems for residential applications. These water heaters produce endless hot water, and unlike electric cylinders, are energy efficient as they are only on when you need hot water.
Suitable for
- Internal residential applications only (A28i)
- Mains and medium pressure systems
- As a gas boost for solar connections
Hard or acidic water will need to be treated to use this product.
Not suitable
- as a spa or swimming pool heater
- for hydronic applications
Available for Natural Gas or LPG. Please select the correct gas option at time of purchase.
Technical Specifications
- Available fixed temperatures: 40, 42, 50, 55, 60, 65, 70, 75, 85°C
- Hot water capacity: 1.4-37 L/min
- Direct electronic ignition
- Nominal operating pressure: 220-1000 kPa
-
Frost protection is fitted as standard
- Safety devices
- Flame failure
- Boil-dry protection
- Overheat protection
- Fusible link
- Pressure relief valve
- Combustion fan RPM check

About Rinnai
Why Buy Rinnai from Turfrey?
At Turfrey, we’re proud to supply the full range of Rinnai gas hot water systems and home heating solutions—backed by expert advice, professional installation, and ongoing local support.
Rinnai is a trusted name in New Zealand, known for its slimline, modern gas heaters that add style and comfort to living spaces, and highly efficient gas hot water systems that deliver endless hot water when you need it. Designed with both performance and sustainability in mind, Rinnai’s innovative technology helps reduce energy use while keeping your home warm and comfortable.
With over 45 years of proven reliability, Rinnai products are built to last in New Zealand conditions. When you purchase through Turfrey, you’re not just getting a leading brand—you’re gaining the confidence of buying from a local team who understands Kiwi homes and can provide the right solution, from product selection to expert installation.
💡 Choose Turfrey for your Rinnai gas heating and hot water needs—and enjoy comfort, efficiency, and peace of mind with every purchase.
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