Description
The Rinnai Hotflo 135 Litre External Gas Hot Water Heater delivers dependable hot water with the efficiency of natural gas. Designed for outdoor installation, this storage hot water system combines reliable performance with fast recovery, making it ideal for households that require a steady supply of hot water throughout the day.
With a 135-litre storage capacity and an impressive 209-litre first hour delivery, this unit ensures there’s plenty of hot water available for showers, kitchens and everyday household use. Its 4.7-star energy rating also helps improve gas efficiency while keeping running costs under control.
At Penrith Hot Water, we supply trusted hot water systems that are built to last. Whether you’re replacing an ageing gas storage unit or installing a new system, the Rinnai Hotflo 135 Litre External Gas Hot Water Heater offers dependable performance for homes throughout Penrith, Emu Plains, Kingswood, Glenmore Park, Cranebrook and the Greater Nepean.
Please note: This model operates on Natural Gas and is not available in South Australia as it does not meet the state’s minimum 5-star gas efficiency requirement.
Why Choose This Product?
- Efficient 4.7-star natural gas performance.
- 135-litre storage capacity for everyday household use.
- 209-litre first hour delivery for faster hot water recovery.
- Designed for durable outdoor installation.
- Reliable performance from trusted Rinnai engineering.
- Ideal replacement for older gas storage hot water systems.
- Supplied and supported by Penrith Hot Water throughout the Greater Nepean.
Product Details
- Product: Rinnai Hotflo 135 Litre External Gas Hot Water Heater
- Type: Gas Storage Hot Water System
- Gas Type: Natural Gas
- Storage Capacity: 135 Litres
- First Hour Delivery: 209 Litres
- Model Number: GHF4135N
- Energy Rating: 4.7 Stars
- Installation Location: Outdoor
Technical Specifications
- Brand: Rinnai
- Model: GHF4135N
- System Type: Gas Storage Hot Water Heater
- Fuel Type: Natural Gas
- Storage Capacity: 135 Litres
- First Hour Delivery: 209 Litres
- Energy Rating: 4.7 Stars
- Installation Location: Outdoor
Dimensions
- Height: 1579 mm
- Width: 420 mm
- Depth: 508 mm
Warranty Information
Warranty conditions apply.
- Storage cylinder: 8-year cylinder warranty
- Labour and parts: 1-year warranty
Delivery Information
We offer free delivery to the following regions:
- Penrith
- Emu Plains
- Kingswood
- Glenmore Park
- Cranebrook
- Surrounding suburbs in the Greater Nepean
Important: All deliveries must be within 50 km of a town with a population over 30,000.
If you’re located outside these areas, please phone us to check availability and discuss delivery options. Note that purchases outside our standard delivery zones will be refunded if free delivery cannot be provided.
STC Information
This product is not eligible for Small-scale Technology Certificates (STCs).
STCs apply to eligible renewable energy hot water systems such as heat pumps and solar hot water systems. As the Rinnai Hotflo 135 Litre External Gas Hot Water Heater is a natural gas storage system, Australian Government STC rebates are not available for this product.
If you’re interested in reducing your energy costs through an STC-eligible hot water system, contact Penrith Hot Water to discuss suitable heat pump or solar hot water options.
Ready to Upgrade?
Upgrade to the Rinnai Hotflo 135 Litre External Gas Hot Water Heater and enjoy reliable, energy-efficient natural gas hot water for your home.
Penrith Hot Water proudly supplies and installs quality gas hot water systems throughout Penrith, Emu Plains, Kingswood, Glenmore Park, Cranebrook and the Greater Nepean. Contact our experienced team today for expert advice, a free quote, or professional installation of the right hot water system for your household.



