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Rinnai RXP199IN Tankless SENSEI® Recirculation Built-In
Original price was: $3,440.00.$2,790.00Current price is: $2,790.00.
-23%
Rinnai RX199IN Tankless SENSEI® 11GPM, Large Home
Model: RX199iN (Natural Gas / Propane Convertible) Capacity: 199,000 BTU | 11.1 GPM Best For: Large Families, 3–4+ Bathrooms, High-Volume Usage
Original price was: $2,899.00.$2,245.00Current price is: $2,245.00.
Every home is different. We’ll confirm your installation cost!
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Tankless Water Heater Installation from $990.00
Chat with us on WhatsApp or request an official quote. Speak directly with our expert installer for accurate pricing, professional installation, and labour warranty coverage up to 10 years.
⚠️ Important: Installation Verification Required The price shown includes Standard Installation (replacing a similar unit in the same location). Because every home in the GTA is unique, verification by a 4 Most Energy expert is required to confirm your final quote.
How it works:
Request a Quote: Click the button below or call us to start.
Expert Verification: We will verify your venting, gas line size, and location (via photos or site visit).
Confirm Price: If your home meets standard criteria, the price stands. If upgrades are needed (e.g., new venting or gas line upgrades), we will provide a clear, itemized quote before work begins.
Rinnai RXP160 Tankless Water Heater, Recirculation Pump Built-In
The Rinnai RX199iN is the powerhouse of the residential tankless market. Designed for homes that demand high-volume hot water without the premium price tag of built-in recirculation, this unit delivers the exact same heating performance as the flagship RXP model.
With a massive 199,000 BTU output and 11.1 Gallons Per Minute (GPM) capacity, the RX199iN easily handles multiple showers, laundry, and kitchen use simultaneously—ensuring you never run out of hot water, no matter how cold it gets outside.
Key Features
Unmatched Flow Rate (11.1 GPM): One of the highest flow rates available in a residential unit. Run 3 to 4 showers at once without losing pressure or temperature.
Recirculation Capable: While this model does not have a built-in pump, it is "future-proof." It can be easily upgraded with an external pump or conversion kit later if you decide you want instant hot water circulation.
Super High Efficiency (0.98 UEF): Rated as Energy Star® Most Efficient. It captures 98% of the heat energy, drastically reducing your natural gas or propane bills compared to traditional tanks.
Stainless Steel Heat Exchanger: Built with a commercial-grade 444 Stainless Steel heat exchanger for superior durability, corrosion resistance, and a longer lifespan.
Smart Sense™ Gas Technology: The unit automatically detects whether you are using Natural Gas or Propane and adjusts itself—no conversion kits required.
Space-Saving Design: Delivers the power of a 75-gallon tank in a unit the size of a small suitcase, freeing up valuable floor space in your utility room.
The Perfect "Combi" Partner for Air Handlers
Specifically designed for condos and townhouses, the RX199iN pairs seamlessly with high-velocity air handlers (like AirMax and other leading brands) to function as a highly efficient "Combi Boiler." This setup handles both your home heating and domestic hot water in one compact footprint, often saving thousands compared to installing a separate furnace and water heater while freeing up valuable closet space.
Commercial-Grade Cascading
For restaurants, spas, and multi-unit buildings, the RX199iN is built to scale. Two or more units can be "cascaded" (linked together) to work as a single intelligent system. This provides massive hot water volume for peak demand and offers critical redundancy, if one t keeps your business running without interruption.
| Warranty – Heat Exchanger | 15 Years / 12,000 hours | |
| Warranty – Parts | 5 Years | |
| Warranty – Labour (4Most Energy) | 1 Year (Extendable up to 5 Years) | |
Technical Specifications
| Specification | Details |
|---|---|
| Model | Rinnai RX199iN (Indoor) |
| Heating Capacity | 199,000 BTU |
| Maximum Flow Rate | 11.1 GPM |
| Fuel Type | Natural Gas |
| Efficiency | UEF up to 0.98 (Super 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 | 55 lbs |
| Warranty – Heat Exchanger | 15 Years |
| Warranty – Parts | 5 Years |
| Warranty – Labour (4Most Energy) | 1 Year (Extendable to 5–10 Years) |
Tankless Installation
| 4Most Energy — Professional Rinnai Installation Process |
|---|
| 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. |
Sizing Guide
Ideal For:
- Large Homes (2,500+ sq. ft.) with 3–4 bathrooms.
- Large Families running multiple appliances and showers at once.
- Replacing Large Tanks (50, 60, or 75-gallon power vented tanks).
- Commercial Applications (Restaurants/Salons) where recirculation isn't required but volume is critical.
- Combi-Applications (Heating + Hot Water with Air Handler).
Not Ideal For:
- Homes demanding "Instant" Hot Water: If you hate waiting 30-60 seconds for hot water at the tap, you should choose the RXP199iN (Pump Model).
- Small Condos/Apartments: The 199k BTU capacity is likely overkill. Consider the RX160iN for better value.
Service Area
At 4Most Energy, we proudly provide professional HVAC, Boiler, Tankless, Furnace & Heat Pump installation across the Greater Toronto Area and 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.
Our certified technicians offer fast response, transparent pricing, and warranty-backed installation wherever you are.
Rinnai RXP199iN Tankless FAQs
Will the Rinnai RX199 provide enough hot water for my home?
The Rinnai RX199iN is a high-performance residential unit that produces up to 11.1 Gallons Per Minute (GPM). This is ideal for medium-to-large homes in Ontario with 3 to 4 bathrooms. As a Rinnai Pro Installer, 4Most Energy ensures this unit is correctly sized to deliver its full 199,000 BTUs of power, ensuring consistent hot water flow even when multiple showers and appliances are running simultaneously.
How does the Rinnai RX199iN handle Ontario winters?
In Southern Ontario, groundwater temperatures drop significantly in winter, which forces tankless units to work harder. The RXP199iN features maximum power (199k BTU) to raise that freezing cold winter water to your desired temperature without losing pressure. Our Rinnai Pro technicians calibrate the unit specifically for local winter conditions to ensure consistent comfort year-round.
What is included in the "Standard Installation" price?
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.
Why do I need an "Installation Verification" for the estimate and before installation?
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.
Can I install this unit with my existing gas line?
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.
Does the RX199iN have built-in recirculation?
No, the standard RX199iN 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 RXP199iN model instead.
Can I add recirculation later?
Yes. The RX199iN 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.
Does Rinnai RXP tankless unit need maintenance?
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
Why do I need a "Rinnai Pro Installer"?
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.
Why should I trust 4Most Energy for my Rinnai tankless installation?
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.
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.
How is the warranty with 4Most Energy?
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.
Do 4Most Energy offer financing Rinnai Tankless?
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!
How can I get a promotion or discounted price on a Rinnai Tankless?
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.
Do you offer emergency services?
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.
Where do you provide installation?
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.
RX199iN Space Heating & Air Handlers
Can the RX199iN be used for both hot water and home heating (Combi)?
Yes, absolutely. It is very typical to use the RX199iN for both domestic hot water and space heating when paired with an air handler.
Versatility: It works excellently with both high-velocity and low-velocity air handlers (such as AirMax or other major brands).
Cost-Effective Solution: For smaller homes like condos or townhouses, this setup is often significantly less expensive than installing a dedicated Combi Boiler.
Professional Design Essential: While highly effective, this dual-purpose application requires proper engineering and professional installation. We optimize the flow rates to ensure the heat exchanger is not overwhelmed, protecting the unit's longevity while keeping your home warm.
Rinnai Tankless Commercial Applications
Is the Rinnai RX199iN good for commercial use?
Yes, depending on the demand. While a single unit is powerful, 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.
