Rinnai

Enjoy unlimited hot water with Rinnai's SENSEI Super High Efficiency Plus (0.98 UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with purchase of the Versa Vent adaptor (sold separately). The Smart Connect(TM) feature allows pros to connect their smartphone or tablet to the water heater via Bluetooth(R) to set up and register the product using the Rinnai Central App for you to receive an additional four years of labor coverage on your warranty.

Excellent product. We have a 4 bathroom house and all use hot water for dishwasher and laundry. The water heater is great, quick to deliver hot water and is working great. Really like the product. The app is not easy to connect - have up after a bit but will try later. Nonetheless, that doesn’t take away from the fact that it is a really Good product.. Zakawat. Kitchener, ON. Wed Feb 12 2025

Enjoy unlimited hot water with Rinnai's SENSEI Super High Efficiency Plus (0.98 UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with purchase of the Versa Vent adaptor (sold seperately). The Smart Connect(TM) feature allows pros to connect their smartphone or tablet to the water heater via Bluetooth(R) to set up

The exhaust fan is somewhat noisy. The heater is in the basement and can be heard from the main floor when house is quiet.. Paulg9582. Tue Jun 23 2026

Enjoy an endless hot water supply with Rinnai's Sensei Super High-Efficiency Plus (98% UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for indoor or outdoor installation with the purchase of the Versa Vent adaptor (sold separately). This model also has a built-in recirculation pump that learns your hot water usage patterns to more effectively provide instant hot water when needed.

Compact unit with very high efficiency. Supplies plenty of water with showers, washing machine, dishwasher all running at once. Worth the switch from a regular tanked water heater.. Sharon. CA. Tue Nov 19 2024

Enjoy unlimited hot water with Rinnai's Sensei Super High-Efficiency Plus (0.98 UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with the purchase of the Versa Vent adaptor (sold separately). The Smart Connect™ feature allows pros to connect their smartphone or tablet to the water heater via Bluetooth® to set up and register the product using the Rinnai Central App for you to receive an additional four years of labor coverage on your warranty.

Good. Hovhannes. US. Mon Aug 11 2025

Enjoy unlimited hot water with Rinnai's SENSEI Super High Efficiency Plus (0.97 UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with purchase of the Versa Vent adaptor (sold seperately). The Smart Connect(TM) feature allows pros to connect their smartphone or tablet to the water heater via Bluetooth(R) to set up

We are so glad we got this heater. The size is just right for our home, and the aesthetic is quite appealing (for a water heater)!. Luis. Sat Dec 28 2024

1.2" H x 4.4" W x 8.2" D

Kit, Conversion RU160i, RUR160i, CU160i

Tania. Fri Dec 15 2023

Excellent still waiting on a plumber to install. Edna. Aurora, NC. Thu Jun 02 2022

Enjoy an endless supply of hot water with Rinnai's SENSEI Super High-Efficiency Plus (97% UEF) condensing tankless water heater. Only the size of a small suitcase, this compact model can be easily converted to use either Natural Gas or Propane with no additional purchase necessary. Perfect for any location, this model allows for either indoor installation or outdoor installation with the purchase of the Versa Vent adaptor (sold separately). This model also comes with a built-in recirculation pump that learns your hot water usage patterns to more effectively provide instant hot water when needed.

Overall having an instant hot water system is nice. My water pressure feels like I’ve lost some pressure and the intermittent cold water ate my only complaints.. Tsanjose1440. Sat Jun 20 2026

RE199iN is the perfect combination of high efficiency, comfort, and value in a natural gas non-condensing tankless water heater from Rinnai. Ideal for small to medium homes or remodels. Only the size of a small suitcase is easy to install, reliable, and perfect for indoor locations; Rinnai products provide peace of mind with warranties that surpass the competition.

I love how fast the water heats. With a large family, there’s no more waiting for the hot water to catch up. I replaced a 25 year old Rinnai with a newer model 6 months ago. I wouldn’t go any other way. They are built to last!. Rinnaialltheway4189. Sun Jun 14 2026

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Great product that I could not find locally. Chris. Portland, OR. Fri Jun 30 2023

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Works. Richard. Alexandria, ON. Fri Jul 18 2025

Concentric Flue Adapter / E50C E50CRN boiler are provided two pipe connection. This accessory converts the two pipe (80mm) configuration to a 3" X 5" concentric connection. Included are adapters, seals and cap.

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Works. Richard. Alexandria, ON. Fri Jul 18 2025

It’s excellent I need another Heater to purchase. Ken. Baltimore, MD. Tue Jul 10 2018

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

perfect unit for our needs no problems with the instalation. Arnold. ON. Thu Dec 17 2015

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Ubbink Non-Condensing concentric venting delivers a professional solution with improved convenience.

This quick, flexible installed, ductless heating solution seeks out cold spots and within seconds begins to gently heat the room or space for maximum comfort.

WORKS WELL, VERY QUIET. Nobert. Taos, NM. Thu Jul 27 2023

Upgrade your Rinnai tankless water heater with the new Versa-Vent Cap. This vent cap allows you to install the tankless water heater in an outdoor location. The RXOVC vent cap is compatible with both the RX residential models and the CX commercial models.

Mirit. CA. Fri Feb 14 2025

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Anonymous. Wed May 01 2024

Pipe cover bottom plate (Commercial)

4.33" H x 20.08" W x 4.52" D

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

2/4 (60/100) Condensing 90 Degree Diverter Nose

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Natural Gas, 130,000 BTU/h

Welcome to ultimate efficiency. With technology that operates only when hot water is needed, super-efficient heating coils, no pilot light, and no storage tank to heat and reheat water, you save on energy and utility costs. Rinnai tankless water heaters use up to 40% less energy than a traditional tank water heater. Plus, with premium technology, increased energy efficiency, an improved Home Energy Rating System (HERS) Index Score, and optimized LEED eligibility, our tankless solutions can increase your home's value. You can even qualify for energy efficiency rebates and tax credits. It's a smart investment for now and the future.

Endless hot water! It's been installed for about a year. Wanted to put one in for a long time and finally pulled the trigger. The only thing I would change is the size of it as far as output(BTU). Here in Missouri the ground water temperature gets pretty low in the winter which affects the amount of GPM. If 2 or more things are demanding hot water, it struggles to keep up because of the temperature rise required . Other than that I have no complaints. It's not really a complaint but, a better and/or more flexible way to change the temperature without buying the expensive controller. I think that should be standard on all models.. Ampeg2106279. Tue Apr 28 2026

The CX199iN is the next generation in commercial tankless water heating. Offering industry-leading thermal efficiency, this model was designed for the most intense applications - from restaurants and hotels to multifamily residenses. The SENSEI CX Series provides unlimited hot water leveraging a new, more compact combustion design that allow for easier installation and enhanced operational performance and serviceability.

Fast, reliable FedEx shipping! Product as advertised.. Wade. Wed Nov 27 2024

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

A closely spaced tee is a hydraulic separator that separates the boiler loop from the central heating loop. Hydraulic separators allow for no pump curve matching or flow calculation and are ideal for multi-temperature and multi-zone systems.

The part is well built and fits perfectly. Quick delivery!. Carl. Massena, NY. Sun Oct 06 2024

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Kenneth. Sat Nov 21 2020

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Kenneth. Sat Nov 21 2020

The Rinnai scale cutter can be used with Tankless Water Heaters and Combi Boilers. It works by simply preventing the amount of minerals found in potable water to prevent lime-scale buildup and corrosion that can diminish hot water performance within the appliance. The Scale Cutter offers similar benefits of traditional water softeners.

Liquid Propane

Having hot water whenever your family needs it shouldn't be a luxury. Put worrying about hot water out of your mind, because now your family can enjoy an endless supply of hot water. And you can enjoy it anywhere in your home. 2 showers running at once are not a problem. Laundry and dishes at the same time, Great idea. Thanks to our innovative technology, your family's comfort and convenience come first.

High quality, reliable.. Launa. Van Nuys, CA. Sat Dec 14 2024

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Thimble (1 piece per box) Rinnai wall thimble support the ease of installation. Rinnai water heater and boiler applications. Pitch: N/A Color: Silver Size: N/A Material: Metal

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

This flexible, easy to install vent free fan convector is the perfect solution for rooms and spaces that are hard to heat.

-. Daniel. Sugar Hill, GA. Thu Feb 12 2026

16700

This quick, flexible installed, ductless heating solution seeks out cold spots and within seconds begins to gently heat the room or space for maximum comfort.

Anonymous. Sat Jan 10 2026

A closely spaced tee is a hydraulic separator that separates the boiler loop from the central heating loop. Hydraulic separators allow for no pump curve matching or flow calculation and is ideal for multi-temperature and multi-zone systems.

Perfect fit for the Rinnai combi boiler-I couldn’t find it anywhere quicker and needed it asap !!! Had it delivered in a day!. Richard. Newcastle, ME. Wed May 20 2026

Condensate Collector (6" length)

extension 6”-39”

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

Jael. North Reading, MA. Mon Dec 22 2025

Black

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to eight tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

This was a perfect fit for the exhaust pipe for my tankless heater. It was easy to slide right on and looks great. My old one deteriorated in the weather.. Rose. Elon, NC. Thu Nov 12 2020

Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.

We had to have these parts for our new heater but couldn't find it anywhere. Without it, we were in a mess. The one we tried to order before Wayfair purchase, was smashed in transit. This arrived within 2 days and 2 days later we had heat!. Michelle. Walsenburg, CO. Wed Dec 21 2022

Wall terminal 3” plastic