Rinnai Infinity 20L LPG A-Series Continuous Flow Hot Water Heater – External
Rinnai Infinity 20L LPG A-Series — External Continuous Flow Water Heater
Efficient, on-demand hot water for smaller households and single-bathroom homes. With up to 20 litres per minute output, the Infinity 20L is a practical, cost-effective option when you don’t need big multi-bathroom capacity.
Best for
- Single-bathroom homes
- Smaller households
- Holiday homes & cabins
- Rural & lifestyle properties (LPG)
- Replacing older small units
A sensible choice when you want continuous hot water without oversizing.
Continuous flow means no tank and no running out.
Up to 20L/min for normal single-bathroom demand.
Comfortable, consistent output at every tap.
Key Specs (Quick Reference)
| Model | Infinity 20L A-Series (LPG) |
|---|---|
| Hot water type | Continuous flow (instant / on-demand) |
| Max flow rate | 20 litres per minute (conditions vary) |
| Fuel | LPG (also available in Natural Gas version) |
| Installation | External installation |
| Power | Requires 230V supply for ignition/controls (low consumption) |
FAQ
Can I run this from bottled LPG (45kg bottles)?
Yes — this model is commonly installed on standard 45kg LPG bottle setups used throughout New Zealand. Your licensed gasfitter will ensure the correct regulator and line sizing are used for your installation.
Does this unit need electricity to run?
Yes — it requires a standard 230V supply for ignition and controls. Power use is low and in most off-grid homes this is easily supplied by an inverter or generator. If you tell us what power system you’re running, we can sanity-check it before you buy.
How many bathrooms can a 20L unit support?
In most homes, 20L is best suited to single-bathroom setups with normal use. Real-world performance depends on incoming water temperature, pipework, shower heads, and whether multiple outlets run at once.
Where should it be installed?
This A-Series unit is designed for external installation. Placement needs to meet clearance and ventilation requirements and follow manufacturer instructions and NZ standards.
Installation & compliance
This appliance must be installed in accordance with New Zealand regulations and is typically installed by a licensed plumber or gasfitter. Requirements can vary by site and council/insurer expectations — contact us if you want a quick suitability check before purchase.
Want us to sanity-check sizing? Tell us: number of bathrooms, how many people, and whether you expect simultaneous showers + kitchen use.
