Rinnai RX180iN Condensing Smart Sense Tankless Water Heater: Indoor or outdoor installation
Meet the Rinnai RX180iN—a tankless water heater that's as flexible as it is efficient, perfect for squeezing into tight spots indoors or braving the elements outside. Thanks to its Smart Sense gas control system, this little powerhouse doesn't care if you're team propane or natural gas; it's ready to roll with whatever you've got. And with a compact design that belies its strength, it pumps out up to 10 gallons per minute of hot water. That's enough to keep your shower steamy while someone else is doing dishes—no more cold-water surprises.
Here's the lowdown on what makes it shine:
- First up, Versa Vent makes installation a breeze (because who has time for complicated setups?).
- Then there's the Quick Flush function, because maintenance should be easy, not a chore.
- It's Energy Star qualified with a UEF of 0.98—pretty much the gold standard for efficiency.
- And for those who love tech, there's optional Wi-Fi connectivity with the Control-R module. Yes, you can control your water heater from your phone. Welcome to the future.
Just a heads-up: to keep this bad boy running smoothly for years, you'll want to get it professionally installed. Trust us, it's worth it.
Features
- Propane or natural gas operation
- Up to 10 GPM flow rate
- 180,000 BTU heat output
- High efficiency (0.98 UEF)
- Indoor or outdoor installation
General specs
- Brand: Rinnai
- Model: RX180iN
- Seller: Amazon
- ID: B0CNQF7G68
- product_dimensions: 19"W x 31"H
- color: Silver
- wattage: 76 watts
- voltage: 120 Volts
- maximum_flow_rate: 10 Gallons Per Minute
- maximum_temperature: 140 Degrees Fahrenheit
- heat_output: 180000 British Thermal Units
- efficiency: High (0.98 UEF)
- maximum_operating_pressure: 150 Pound per Square Inch
- mounting_type: Wall
- is_electric: No
- item_weight: 54 pounds
- country_of_origin: Japan
- size: 10 GPM
- included_components: mount
- batteries_required: No
- First listed by seller: 6/5/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Price History for seller Amazon
Shipping options
United States
Video Reviews
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Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Rinnai RX180iN Indoor or outdoor installation
|
Rinnai RX199iN Silver
|
Rinnai V53DeP Endless hot water flow
|
Rheem RTG-95DVLN-3 Gray Continuous hot water for entire house
|
Rheem RTEX-13 External adjustable digital thermostatic control
|
Rheem RTEX-24
|
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| Brand | Rinnai | Rinnai | Rinnai | Rheem | Rheem | Rheem |
| Model | RX180iN | RX199iN | V53DeP | RTG-95DVLN-3 | RTEX-13 | RTEX-24 |
| Color |
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| Rating |
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| Price | $1,409.94 | $1,532.79 | $741.65 | $1,259.05 | $287.20 | $464.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 |
| product_dimensions | 19"W x 31"H | 13"W x 30"H | 1"W x 1"H | 17.63"W x 18.25"H | ||
| wattage | 76 watts | 13 KW | 24 KW | |||
| voltage | 120 Volts | 240 Volts | 240 Volts | |||
| maximum_flow_rate | 10 Gallons Per Minute | 5.3 Gallons Per Minute | 4.8 Gallons Per Minute | 5.9 Gallons Per Minute | ||
| heat_output | 180000 British Thermal Units | 81 Kilowatts | 13 Kilowatts | 24 Kilowatts | ||
| efficiency | High (0.98 UEF) | High | at least 99.8% energy efficient | 99.8% Energy efficient | ||
| mounting_type | Wall | Wall | Wall | Wall | ||
| is_electric | No | No | Yes | Yes | ||
| item_weight | 54 pounds | 33 pounds | 3.96 pounds | 17.8 pounds | ||
| included_components | mount | Water Heater | Rheem RTEX-13 Residential Tankless Water Heater | Fittings, Aerators | ||
| item_depth | 7.9 in / (202 mm) | 0.5 inches | 3.5 inches | |||
