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RX160iN (Natural Gas / Propane Convertible) Capacity: 160,000 BTU | 9.0 GPM Best For: Medium Families, up to 2 bathrooms, Semi, Townhomes & Condos
Right-Sized Power (9.0 GPM): Don't pay for overkill. This unit generates enough hot water to run up to 2 showers simultaneously—perfect for the average 3-bedroom home with up to 2 bathrooms in Ontario—at a lower equipment cost than the 199-series.
Engineered for Ontario Winters: Unlike smaller 120k BTU units, the RX160iN’s 160,000 BTU burner has the muscle to flash-heat freezing groundwater during February, ensuring your showers stay steaming hot year-round.
The Condo & Townhouse Specialist: Space is premium real estate. The RX160iN’s compact footprint fits easily in tight mechanical rooms or closets and vents with standard PVC, making it the ultimate space-saving upgrade from bulky tanks.
Super High Efficiency (0.97 UEF): Rated as Energy Star® Most Efficient, it captures 97% of heat energy. This drastic reduction in gas usage helps the unit pay for itself over time compared to renting inefficient tanks.
Commercial-Grade Durability: Built with a 444 Stainless Steel heat exchanger for superior resistance to scale and corrosion, ensuring long-term reliability.
Future-Proof Flexibility: While efficient out of the box, it is Recirculation Capable, allowing you to upgrade with an external pump later if your needs change.
The 4Most Pro Installation Advantage: We don't just hang the unit; we optimize it. Our "Supply & Install" package includes gas load verification to prevent system starvation and Smart Sense™ technology setup, ensuring your unit runs safely and efficiently on Natural Gas or Propane from day one.
No hidden fees. Just accurate math based on your home’s specs.
| Specification | Details |
|---|---|
| Model | Rinnai RX160iN (Indoor) |
| Heating Capacity | 160,000 BTU |
| Maximum Flow Rate | 7.5 GPM |
| Fuel Type | Natural Gas |
| Efficiency | UEF up to 0.92 (High Efficiency) |
| Energy Star | Yes |
| Venting Type | Direct Vent |
| Recirculation | No (External pump optional) |
| Wi-Fi Capable | Yes – Optional module |
| Dimensions (H × W × D) | 30.1" × 18.5" × 11.4" |
| Weight | 54 lbs |
| Warranty – Heat Exchanger | 15 Years / 12,000 hours |
| Warranty – Parts | 5 Years |
| Warranty – Labour (4Most Energy) | 1 Year (Extendable up to 10 Years) |
| Step | Details |
|---|---|
| 1. Home & System Check | Proper sizing based on bathrooms, fixtures, gas line capacity, venting, and plumbing. Ensures the right tankless model for your home. |
| 2. Removal of Old Equipment | Safe disconnection, draining, removal, and eco-friendly disposal of your old tank or tankless water heater. |
| 3. Install & Mount the New Rinnai | Wall prep, mounting brackets, clearance verification, and setup for optimal servicing and performance. |
| 4. Gas, Venting & Condensate | Installation of new PVC/CPVC/SS venting, gas line upgrades if needed, fresh air setup, and proper condensate drain with neutralizer. |
| 5. Water Lines & Recirculation Setup | New isolation valves, clean hot/cold connections, and recirculation configuration for faster hot water. |
| 6. Full Testing & Commissioning | Gas/water leak check, startup diagnostics, combustion analysis, flow rate adjustment, and temperature calibration. |
| 7. Cleanup, Training & Warranty Registration | Work area cleaned, old equipment removed, homeowner training completed, and warranty registered under your name. |
Advanced Comfort Expert · Rinnai ACE PRO
As a premier member of the official Rinnai PRO Network, our team is factory-trained and ACE-certified to provide the highest level of expertise available in the industry.
Whether you're looking for a new tankless installation or elite maintenance for your current home heating solutions, we ensure your system operates at peak reliability.
Hiring a certified Advanced Comfort Expert means you are choosing a technician vetted for their skill, knowledge, and commitment to the Rinnai standard.
We utilize advanced tools like the Rinnai Central™ App for system setup, precision tuning, and remote system monitoring.
We utilize advanced tools like the Rinnai Central™ App to ensure accurate system setup, precision tuning, and remote system monitoring.
As Advanced Comfort Experts, we ensure your system is perfectly sized for consistent hot water and maximum energy savings.
Toronto, Markham, Richmond Hill, Vaughan, Aurora, Newmarket, Scarborough, Brampton, and Mississauga.
Extended Service Area: Stouffville, Oshawa, Barrie, Orangeville, Hamilton, St. Catharines, Guelph, Kitchener.
Yes. The Rinnai RX160iN is a high-efficiency residential unit that produces up to 9.0 Gallons Per Minute (GPM). This is good for small-to-medium houses and perfect for condos or townhouses in Ontario with up to 2 bathrooms. As a Rinnai Pro Installer, 4Most Energy ensures this unit is correctly sized to deliver its full 160,000 BTUs of power, ensuring consistent hot water flow for your household's daily needs.
Our standard package covers the complete replacement of a similar unit. This includes:
Disconnecting and disposing of your old water heater.
Mounting the new Rinnai RXP160.
Connecting to existing gas, water, and electrical lines (within 5 feet).
Standard venting connection.
Every home in the Greater Toronto Area is different. Older homes in Toronto or Hamilton may have smaller gas lines (1/2") or specific venting challenges. As certified Rinnai Pro Installers, we follow strict manufacturer guidelines to verify these needs before installation day, protecting you from surprise costs and ensuring your warranty remains valid.
This depends on the total BTU load of your other appliances. As Rinnai Pro experts, we calculate the precise load during our verification step to guarantee safety and efficiency.
No, the standard RX160iN model does not have a built-in recirculation pump. It is designed for homes that do not need instant hot water circulation or already have an external pump system.
Note: If you want built-in recirculation (Smart-Circ™) for faster hot water at your taps, please ask us about the RXP160iN model instead.
Yes. The RX160iN is "Recirculation Capable." This means it can be upgraded in the future with an external pump or an internal conversion kit to enable recirculation features. However, if you know you want this feature now, it is more cost-effective to install the RXP199iN model upfront.
A: Yes. Although it is a very low maintenance unit, we do recommend regular maintenance for safety and performance.
Annual Safety Check ($120–$200): Our Rinnai Pro technicians perform a comprehensive check-up every year to inspect safety features, check the vent and drain systems, and perform a gas leak test.
Descaling Service ($300–$400): You do not need to descale every year. We recommend a full descaling every 5 years to flush out mineral buildup and restore efficiency
Rinnai strongly recommends professional installation to guarantee safety, performance, and warranty validity. As an authorized Rinnai Pro, we offer benefits that a general handyman or uncertified plumber cannot:
Exclusive Warranty Extension: Standard labor warranties are typically 1 year. As a Rinnai Pro, 4Most Energy can register your product (within 90 days) to upgrade your labor coverage to 5 years (subject to Rinnai's terms).
Factory Training & Expertise: Our technicians complete rigorous Rinnai training (Level II & III) to master sizing, venting, and complex parameter settings. This ensures your unit is calibrated perfectly for Ontario's cold groundwater and altitude, preventing early failure.
Safety & Code Compliance: Tankless units require precise gas line sizing and venting clearance. We ensure every installation meets TSSA (Technical Standards and Safety Authority) and Ontario Building Code regulations to keep your family safe from CO hazards.
Priority Support: If an issue ever arises, Rinnai Pros have access to dedicated advanced technical support lines, ensuring faster diagnostics and repairs than non-certified installers.
No Outsourcing: You work directly with our licensed experts, not a sales call center.
Local Stock: We carry parts and units locally for faster service in the GTA and surrounding area.
Comprehensive Quotes: We provide detailed, all-inclusive estimates that cover the equipment, installation, taxes, warranty registration, and disposal. No hidden fees, and backed by our 30-Day Customer Satisfaction Guarantee.
Transparent Pricing: We verify your home first so you get a clear, final price with no surprise fees.
When you choose us, you get:
15-Year Manufacturer Warranty on Heat Exchanger.
5-Year Manufacturer Warranty on Parts.
1-Year Labour Warranty from 4Most Energy (Standard).
Bonus: We register your unit with Rinnai to potentially extend labour coverage up to 5 years.
Yes. We offer flexible financing plans (such as our "4Most Smart Pay" program) to help you upgrade without a large upfront cost. We also work with third-party lenders and can assist with eligible government programs like the Canada Greener Homes Loan. Ask our team for current rates and zero-interest offers!
Rinnai is a high-demand best-seller in Ontario, but at 4Most Energy, we still offer several ways to save:
Bundle & Save: Get a discount when you install a Rinnai tankless unit together with a furnace or heat pump.
4Most Smart Pay Financing: Ask about our current "4Most Smart Pay" promotions, which may include zero-interest periods or deferred payments.
Seasonal Offers: Check our "Promotions" page or ask our expert for seasonal discounts on Rinnai units.
Yes. We provide 24/7 emergency support for "no heat" or "no hot water" situations across the Greater Toronto Area. If your system fails in the middle of winter, our certified technicians are on call to get you back up and running quickly.
4Most Energy as a premier Rinnai Pro Installer in the region, we provide expert verification and installation across Southern Ontario:
Greater Toronto Area: Toronto, Mississauga, Brampton, Markham, Vaughan, Richmond Hill, Aurora, Newmarket, Scarborough.
Extended Service Area: Stouffville, Oshawa, Barrie, Orangeville, Hamilton, St. Catharines, Guelph, Kitchener.
For most high-demand commercial cases, two or more Rinnai Tankless units can be cascaded (linked) to work together. This setup is typically used in restaurants, motels, spas, and multi-unit apartments.
Energy Efficiency: Save money by only heating water on demand rather than maintaining large storage tanks 24/7.
Redundancy (Backup): A major advantage of cascading is backup protection. If one unit fails or needs maintenance, the others continue to operate, ensuring your business always has hot water.
Lower Maintenance Costs: Improved water quality and reduced scale buildup compared to traditional commercial tanks help lower long-term maintenance costs.
