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Specifications
Make: Rinnai
Model: Rinnai RX180
Energy Factor: 97%
Maximum Flow Rate: 9.0 GPM
Maximum Heating Capacity: 160,000 BTU
Energy Star Certified: Yes
Dimensions: 30.1″ H × 18.5″ W × 11.4″ D
Technical Information
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High-efficiency design for a reliable hot water supply
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Compact wall-mounted unit, saving space compared to traditional tanks
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Optimized for continuous hot water, even during high demand
Warranty
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Purchase Warranty: 5 Years on Parts + 15 Years on Heat Exchanger + 1 Year Labour Coverage
Product Description
The Rinnai RX180 High Efficiency Condensing Tankless Water Heater is a powerful, energy-saving hot water solution designed for larger households with higher demand. Built to deliver continuous hot water on demand, the RX180 ensures consistent performance even when multiple fixtures are used at the same time. With advanced condensing technology and a compact wall-mounted design, this unit offers both efficiency and convenience for modern homes.
Powered by a high-capacity heating system, the Rinnai RX180 reduces energy waste by heating water only when needed. Its ENERGY STAR® certified performance helps homeowners lower utility bills while maintaining a reliable and uninterrupted hot water supply. Ideal for busy families, this tankless water heater combines durability, space efficiency, and long-term cost savings.
Key Features
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High-Efficiency Condensing Technology
Maximizes heat transfer for reduced energy consumption. -
On-Demand Hot Water Supply
Continuous hot water without the limitations of a storage tank. -
High Heating Capacity
Designed to support multiple bathrooms and simultaneous usage. -
ENERGY STAR® Certified
Improves efficiency while reducing operating costs. -
Compact Wall-Mounted Design
Saves floor space and fits easily in utility rooms or basements. -
Durable, Long-Lasting Construction
Built for extended service life with proper maintenance. -
Advanced Digital Temperature Controls
Precise control for consistent comfort and safe operation.
Benefits
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Lower Energy Bills
High-efficiency operation reduces gas usage. -
Endless Hot Water
Ideal for large families and high-demand homes. -
Space-Saving Installation
Frees up valuable space compared to traditional tank heaters. -
Long-Term Reliability
Designed for years of dependable performance. -
Environmentally Friendly
Reduced emissions and energy waste.
Customer Reviews
15 reviews for Rinnai RX180 High Efficiency Condensing Tankless Water Heater
Why Homeowners Trust Jimmy HVAC for Reliable Comfort
Reliable HVAC Solutions Built for Comfort, Efficiency, and Long-Term Peace of Mind.
Financing Options Available
Enjoy peace of mind with low monthly payments that make your costs easy to manage without compromising on quality.
Transparent, Upfront Pricing
No hidden charges—just honest, clear pricing so you always know exactly what to expect before work begins.
Free Installation Included
Enjoy hassle-free setup with free professional installation completed on every purchase.
Licensed & Certified Technicians
TSSA-licensed experts ensure safe, highly reliable, and precise system installations and diagnostic repairs.
Parts & Labour Warranty
Long-lasting protection with comprehensive parts coverage alongside our trusted, comprehensive labor guarantees.
Your Free HVAC Quote is 30 Seconds Away
Fast, no-obligation quote — same-day callback guaranteed.
Professional HVAC Installation & Replacement
Jimmy HVAC provides professional installation, replacement, and system upgrades for residential and light commercial HVAC equipment throughout the Greater Toronto Area. Our certified technicians ensure every system is installed according to manufacturer specifications, Ontario building codes, and industry best practices.
Whether you are upgrading to a high-efficiency system, replacing ageing equipment, or installing a new HVAC solution, our team serves homeowners and property managers across the GTA with reliable service and transparent pricing.
Full-Service HVAC Solutions
- Furnace installation & replacement
- Air conditioner installation
- Heat pump systems
- Tankless water heaters
- Boiler systems
- HVAC system upgrades & retrofits
- Complete Commercial HVAC Solutions
- Preventative maintenance & system inspections





Steven Kaur –
Pricing was transparent. Not the cheapest option, but the Rinnai RX180 feels like a quality upgrade.
Laura Bennett –
Simple install and steady hot water. No complaints so far.
Omar Hassan –
Unit performs well, but make sure your gas line is adequate. Install team explained this clearly.
Hannah Wilson –
Good experience overall. Slight wait for parts, but Jimmy HVAC kept us informed.
Kevin Liu –
Service was fast once booked. Install finished earlier than expected.
Emily Fraser –
We’ve had the Rinnai RX180 for three months now. No temperature swings and it handles two showers at once fine.
Robert Gagnon –
Works well, but the initial setup explanation felt rushed. Unit itself is doing its job.
Melissa Wong –
Installers were respectful and cleaned up after. Price was reasonable for a tankless system.
Daniel O’Reilly –
Switched to the Rinnai RX180 for energy savings. Too early to tell on bills, but performance is solid.
Priya Shah –
Hot water never runs out now. Took a couple days to get the appointment, but install itself was smooth.
Andrew Collins –
Good service and no pressure upselling. Took about half a day to install.
Nicole Tremblay –
immy HVAC handled the install cleanly. The Rinnai RX180 is much quieter than our old tank.
Jason Patel –
Water heats fast, but there’s a slight delay on the far bathroom. Overall still happy with the unit.
Sarah McLeod –
Installation team was on time and explained how the system works. Pricing was fair compared to other quotes we got.
Mark Delaney –
Installed the Rinnai RX180 last month. Hot water is consistent and no issues so far.