Description
The Rinnai Enviroflo GR Series represents the next generation of heat pump hot water technology. This system combines proven efficiency with enhanced performance, using environmentally-friendly R290 refrigerant to extract warmth from surrounding air and deliver consistent hot water.
With 180 litres of storage capacity, the GR Series suits families requiring dependable hot water supply. The intelligent heat pump activates intelligently, storing heated water for access throughout the day. You’ll experience both comfort and significant savings on energy costs.
Installation flexibility is built-in. The Enviroflo GR Series works indoors or outdoors—though indoor installations require adequate airflow. Penrith Hot Water assesses your property across Penrith, Emu Plains, Kingswood, Glenmore Park, Cranebrook and the Greater Nepean to determine optimal placement and ensure maximum performance.
WHY CHOOSE THIS PRODUCT?
- Advanced heat pump technology: R290 refrigerant maximises efficiency
- 180L capacity: Ample storage for family hot water needs
- Lower energy bills: Air source extraction reduces running costs significantly
- Flexible installation: Indoor or outdoor options available
- Extended cylinder warranty: 7-year protection on storage tank
- Government rebates: STCs reduce your total investment
- Environmentally-friendly: R290 refrigerant supports sustainability
- Professional setup: Penrith Hot Water ensures optimal system configuration
PRODUCT DETAILS
Model Number: EHPG180VM10
System Type: Heat pump hot water heater
Storage Capacity: 180 litres
Refrigerant: R290 (environmentally-friendly)
Installation: Indoor or outdoor (indoor requires minimum airflow)
The Enviroflo GR Series leverages R290 refrigerant technology for superior efficiency. This next-generation refrigerant improves heat transfer while supporting environmental responsibility—making it an excellent choice for Greater Nepean households prioritising both performance and sustainability.
TECHNICAL SPECIFICATIONS
Type: Heat Pump Hot Water Heater
Model: EHPG180VM10
Storage Capacity: 180 litres
Refrigerant: R290
Installation Options: Indoor (with airflow requirements) or outdoor
Power Source: Electric (air source heat pump)
The GR Series draws warmth from ambient air year-round, concentrating it into your storage cylinder. R290 refrigerant delivers improved efficiency compared to earlier models, translating to measurable reductions in energy consumption across Penrith, Emu Plains, Kingswood, Glenmore Park, Cranebrook and the Greater Nepean.
DIMENSIONS
Height: 1702 mm
Width: 640 mm
The Enviroflo’s compact vertical design accommodates most property layouts. Whether you install outdoors or indoors (with proper ventilation), the footprint minimises disruption across your Greater Nepean location.
WARRANTY INFORMATION
Warranty conditions apply. Please review full terms before purchase.
Storage Cylinder: 7-year warranty
Refrigeration Components (including labour): 5-year warranty
Other Component Parts and Labour: 1-year warranty
Rinnai’s tiered warranty reflects confidence in the GR Series durability. Your storage cylinder receives seven years of protection—industry-leading coverage. Refrigeration components and labour enjoy five years, whilst other parts carry one-year protection. This comprehensive structure ensures long-term reliability.
STC INFORMATION
All supply and installation prices include STCs assigned to us as a point-of-sale discount.
All supply only prices require the customer to claim the STCs themselves.
What Are STCs?
Small-scale Technology Certificates (STCs) are Australian government rebates on eligible hot water systems. The Rinnai Enviroflo 180L GR Series qualifies, reducing your overall cost.
Your Options
Supply and Installation: STCs are applied at checkout—no paperwork needed.
Supply Only: You’ll claim the STCs yourself. We’ll provide the documentation.
For current rebate amounts on the Rinnai Enviroflo 180L GR Series, contact Penrith Hot Water for a free quote.
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.
DOWNLOADS
Rinnai Enviroflo AR & GR Series Heat Pump Brochure
READY TO UPGRADE SECTION
Ready for next-generation heat pump efficiency?
The Rinnai Enviroflo 180L GR Series delivers superior performance and savings. From Penrith to Emu Plains, Kingswood, Glenmore Park, Cranebrook and across the Greater Nepean, Penrith Hot Water makes upgrading straightforward.
Contact us today for a free site assessment and custom quote. Our team will evaluate your property, discuss airflow requirements for indoor installation, explain STC savings, and schedule professional installation.
Phone Penrith Hot Water now or request an online quote. Advanced heat pump hot water starts here.



