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Rinnai Sensei™ RU180IN - Residential 180,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model:
RU180IN
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Frequency
Select how often you will receive your air filters, we offer many options to meet your air quality standards.
Quantity
Quantity
This will be how many filters you receive per delivery.
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$24.50
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Frequency
Frequency
Select how often you will receive your air filters, we offer many options to meet your air quality standards.
Quantity
Quantity
This will be how many filters you receive per delivery.
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Quantity
Quantity
This will be how many filters you receive per delivery.
Quantity
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Features
Fuel
Natural Gas
Location
Indoor
# of Showers
2.8
UEF
0.92
Energy Star Certification
Yes
- Continuous Water for Multiple Applications
- Rinnai tankless water heaters provide an endless supply of hot water that remains uninterrupted, even when you're the last one in line for the shower.
- Energy Efficient Promise
- Tankless water heaters avoid the need to keep a large amount of reserve water heated at all times. This saves energy by only heating water when you need it, while an entirely electric ignition avoids the constantly wasted energy of a standing pilot light.
- Wi-Fi Compatible
- Every SENSEI™ water heater is Wi-Fi compatible for remote monitoring and management.
- Enhanced Combustion Design
- The Rinnai SENSEI™ series water heaters feature a fiber mesh premix burner that provides an even flame distribution for optimal performance and efficiency.
- Stainless Steel Heat Exchanger
- The included stainless steel heat exchanger features corrosion-resistant properties to ensure reliable and long-lasting operation, while its superior efficiency puts the SENSEI™ series at the top of its class.
- Flexible Venting Options
- Perfect for both new installs and retrofits, the SENSEI™ features the most flexible venting in the industry. Whether your install requires concentric, direct, room air, or common venting, the SENSEI™ series can handle it all.
- Simple Installation and Serviceability
- The SENSEI™ water heater features an adjustable mounting plate and a rotatable pressure relief valve to accommodate a variety of install applications. An easily accessible control panel and parameter adjustment allow for fast and simple servicing.
- Includes Isolation Valves & Pressure Relief Valve
- Enables easy preventative maintenance, annual flushing, and serviceability.
- Delivers a $100 value, with no additional purchase necessary.
- Product Also Includes
- Integrated Controller
- Wall Mounting Bracket
- Vent Screens (2)
Rinnai is raising the bar in tankless heating technology with their SENSEI™ tankless water heaters. Rinnai's SENSEI™ series provides a better experience for both users and installers alike with simple installation, serviceability, efficient performance, and flexible venting options. A corrosion-resistant stainless steel heat exchanger, integrated check valve, and included safety devices allow for powerful and efficient water heating for years to come.
Product Note
The Rinnai RWM101 Control-R™ Wi-Fi Module is required for Wi-Fi connectivity.
California residents see
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm..
For more information go to: www.p65Warnings.ca.gov
Specifications
RU180IN

General Information
Type
Tankless Water Heater
Product Line
Sensei
Product Sub-line
Super High Efficiency Plus (SE+)
Product Category
Water Heater - Tankless
Medium
Medium
Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
Hot Water
Fuel Type
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Natural Gas
Combustion Type
Combustion Type
Condensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
Condensing
Vent Type
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Direct Vent
Venting Category
Venting Category
Venting Category describes what type of flue material can be used in water heater installations. Category III: Stainless Steel, Category IV: ABS, PVC, CPVC, PolyPro, Stainless Steel
IV
Storage Type
Tankless
Application
Residential
Mount Type
Wall
Installation Location
Indoor
Maximum Altitude
10200 Feet
Includes Pump
No
Gas Conversion Kit
Not Available
Subscription Eligible
No
UPC
766156009570
Performance
Maximum Input Capacity
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
180000 BTU
Minimum Input Capacity
15000 BTU
Flow Rate at 40F Temperature Rise
Flow Rate at 40F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
8.6 GPM
Flow Rate at 45F Temperature Rise
Flow Rate at 45F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
7.7 GPM
Flow Rate at 50F Temperature Rise
Flow Rate at 50F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
6.9 GPM
Flow Rate at 60F Temperature Rise
Flow Rate at 60F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
5.8 GPM
Flow Rate at 70F Temperature Rise
Flow Rate at 70F Temperature Rise
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More
4.9 GPM
Uniform Energy Factor
Uniform Energy Factor
Uniform Energy Factor (UEF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater.
0.92
Minimum Flow Rate
0.4 GPM
Ultra Low NOx Emissions
Ultra Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx. Learn More
Yes
Electrical Data
Phase
1
Frequency
60 Hz
Dimensions
Primary Vent Pipe Diameter
2 Inches
Gas Connection Size
3/4 Inch
Cold Water Inlet
3/4 Inch
Hot Water Outlet
3/4 Inch
Product Height
26 19/48 Inches
Product Width
18 1/2 Inches
Product Depth
11 19/48 Inches
Product Weight
64 Pounds
Shipping Weight
74 Pounds
Certifications
Energy Star Listed
Yes
CSA Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
10595512
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Heat Exchanger Warranty
15 Years
Reviews
(6)
Rinnai RU180IN Reviews & Ratings

Great Product
By Lori G.
Saybrook, Illinois
Purchased 04/12/2019 |
Review Posted 05/03/2019
Hit water heater went out and brother-in-law has a Rinnai so we got one
Lori G. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Awesome product
By Jeffery S.
Trinity, Alabama
Review Posted 08/10/2018
It works great replaced a 80 gallon water heater free up a lot of space and looks awesome
Jeffery S. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5

Best upgrade made to our house yet.
By Charles W.
NMB, South Carolina
Purchased 07/11/2018 |
Review Posted 08/08/2018
replacing a old 100 gallon water heater that was an energy hog. Very happy with the speed of the hot water to the faucet and never running out of hot water. Can't wait to see the savings on our electric bill.
Charles W. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5

Very Happy with the upgrade
By Marcus A.
Plainwell, Michigan
Purchased 05/31/2018 |
Review Posted 08/07/2018
This thing exceeded my expectations, i have a 2 bathroom home and we would regularly run out of hot water with a 40gal tank heater. When my tank was showing signs of leaking i started researching tankless and found this heater great price and better performance. I was skeptical that i was going to have to use a higher water temp setting being on a well in michigan, but we are only on the second settings at 125deg F, and the water is plenty hot and produces tons of hot water. This heater is amazing. Just do your home work on what you need if you are doing the install yourself.
Marcus A. Recommends This
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Rating Breakdown
4/5
5/5
5/5
5/5

Very good water heater
By Tim S
Bel Aire, Kansas
Purchased 07/08/2018 |
Review Posted 07/30/2018
I read a lot of complaints about how long it took to get hot water. The only thing I can think of is that people have really long lines because I notice almost no difference between this and my standard hot water tank. about 30 seconds and my water is hot.
Tim S Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5

Great Product!
By Michel F.
Prescott, Arizona
Purchased 04/11/2018 |
Review Posted 05/02/2018
Easy to install and works great. Great product and value pricing.
Michel F. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
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Rinnai Sensei™ RU180IN - Residential 180,000 BTU - Natural Gas Tankless Water Heater - Indoor








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