Any Home. Any Season. One System.
Upgrade to a high-efficiency heat pump to heat and cool with one system, reduce energy costs, and get up to $7,500 in rebates.




Off-season pricing means the best deals of the year on high-efficiency air conditioners.

Save Big on Lennox Furnaces — Limited Time!
Get a new high-efficiency Lennox furnace with no payments for up to 6 months. Premium comfort, top-tier performance.

Simple estimates, flexible payments, pro installation, and industry-leading warranties.


RX160iN (Natural Gas / Propane Convertible) Capacity: 160,000 BTU | 9.0 GPM Best For: Medium Families, up to 2 bathrooms, Semi, Townhomes & Condos
$2,245.00 Original price was: $2,245.00.$1,845.00Current price is: $1,845.00.

✅ Equipment only →Just add to cart.
⚠️ 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.
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.
| Warranty – Heat Exchanger | 15 Years / 12,000 hours | |
| Warranty – Parts | 5 Years | |
| Warranty – Labour (4Most Energy) | 1 Year (Extendable up to 5 Years) | |
| 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. |
| 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) |
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.



Off-season pricing means the best deals of the year on high-efficiency air conditioners.

Save Big on Lennox Furnaces — Limited Time!
Get a new high-efficiency Lennox furnace with no payments for up to 6 months. Premium comfort, top-tier performance.

Simple estimates, flexible payments, pro installation, and industry-leading warranties.


Need help? Our team is just a message away