Description
Rinnai 340L AR SeriesHeat Pump Hot Water
Perfect for 4–6 people. The Rinnai Enviroflo 340L AR Series uses R290 natural refrigerant with a COP of up to 5.5 — saving up to 75% on hot water energy costs with full solar PV compatibility. Backed by a 7-year warranty.
High Efficiency R290 Heat Pump Technology
The Rinnai Enviroflo 340L AR Series uses R290 — a natural, low global warming potential refrigerant — to deliver exceptional hot water efficiency. Built-in Solar PV compatibility means you can run heating on free solar energy.
Up to 75% Less Energy
With a COP of up to 5.5, the Enviroflo 340L AR Series delivers exceptional heat pump efficiency. Every $1 of electricity produces up to $5 of heating value, slashing hot water running costs.
R290 Natural Refrigerant
R290 has one of the lowest global warming potentials of any refrigerant in use today. It’s efficient, eco-friendly, and future-proofed against regulatory changes affecting older refrigerants.
Solar PV Compatible
Schedule heating during peak solar generation hours to run on free energy. Full Solar PV panel compatibility means maximum self-consumption from your rooftop system.
All-Climate Performance
Designed for Australian conditions, the Enviroflo operates effectively across a wide ambient temperature range — delivering hot water reliably all year round, even in cooler climates.
STC Rebates Available
Qualifies for federal Small-scale Technology Certificates significantly reducing your upfront cost. We handle all the paperwork and pass the saving directly to you.
Rinnai — Trusted Australian Brand
Rinnai has been trusted by Australian homeowners for decades. WaterMark certified, backed by a national service network, and designed for Australian conditions.
Heat Pump Efficiency — How It Works
The Enviroflo extracts heat from the surrounding air and transfers it to your water — rather than generating heat from scratch. This process uses 3–4× less electricity than a conventional electric system, making it one of the most cost-effective ways to heat water.
- R290 refrigerant — low GWP, high efficiency
- Solar PV compatible for maximum savings
- WaterMark certified — meets all Australian Standards
- Suitable for indoor and outdoor installation
7-Year Warranty
The Rinnai Enviroflo 340L AR Series is backed by a 7-year warranty from Rinnai Australia, covering the storage cylinder and heat exchange components. Must be installed by a licensed tradesperson.
- 7 years — cylinder and heat exchange warranty
- Rinnai Australia national service network
- Australian Consumer Law protections apply

DC Inverter + Wi-Fi Control
The Enviroflo 340L AR Series combines a brushless DC inverter compressor with built-in Wi-Fi control — letting you schedule heating during off-peak tariff windows when quiet operation matters most. Anti-vibration mounts keep noise below 52 dB across the full operating range.
- Brushless DC inverter compressor — efficient and quiet
- Built-in Wi-Fi — schedule off-peak heating via the Rinnai app
- Anti-vibration mounts on all contact points — no structure-borne hum
- Below 52 dB — suitable for installation beside living areas
- SmartStart compatible — demand-response and grid tariff integration

Enamel-Lined Cylinder — Backed by Rinnai
The Enviroflo 340L AR uses Rinnai’s vitreous enamel cylinder with a sacrificial magnesium anode — the same proven tank construction Rinnai has trusted across their entire hot water range for decades. Backed by a 10-year cylinder warranty.
- Vitreous enamel lining — smooth glass interior, corrosion-resistant
- Sacrificial magnesium anode — replaces periodically for continued protection
- Backed by Rinnai’s Australian service and warranty network
- 10-year cylinder warranty. WARRANTY CONDITIONS APPLY.
Technical Specifications
Warranty Coverage
The Rinnai Enviroflo 340L AR Series is backed by Rinnai Australia.
7 year warranty on the cylinder and heat exchange components. WARRANTY CONDITIONS APPLY.
2 year warranty on parts and labour. WARRANTY CONDITIONS APPLY.
Government Rebates & Energy Certificates
Applicable incentives are applied as a point-of-sale discount. No claiming, no paperwork on your end.
Delivery Information
All sales need to be within a 50 km radius of a town with a population over 30,000. For all other areas, please phone to check delivery options.
Need Hot Water Fast?
Shop online or call for same-day service across Wollongong and surrounding areas.



