1/18

Rinnai RX199IN Natural Gas Tankless Water Heater

Name: Rinnai RX199IN Natural Gas Tankless Water Heater
Brand: Rinnai
SKU: 5015128503
Price: 936.71 USD
Availability: InStock

$936.71 $1,703.10

Taxes included. Shipping calculated at checkout.

Maximum Gallons per Minute (NA) 7.1 9 10 11.1

The Rinnai RX199IN Super High Efficiency Plus Condensing Tankless Water Heater delivers on-demand hot water with exceptional energy performance for whole-home residential use. Featuring an advanced condensing design, this high-efficiency unit achieves a 0.98 Uniform Energy Factor while producing up to 199,000 BTU to meet high-demand household needs.

Engineered for convenient indoor wall-mounted installation, this water heater incorporates modern Wi-Fi and Bluetooth connectivity for effortless monitoring and control. Built-in overheat protection and Ultra Low NOx emissions provide reliable, safe, and environmentally conscious operation.

Key Features

Brand	Rinnai
Model Number	RX199IN
Series Name	Super High Efficiency Plus
Type	Tankless
Fuel Type	Natural Gas
Power Source	Gas
BTU Rating	199,000
Uniform Energy Factor (UEF)	0.98
Grade	Residential
Use Location	Indoor
Installation Type	Wall mount
Ignition Type	Electric
Vent Type	Concentric
Vent Diameter	2-in
Water Connection Size	3/4-in
Water Connection Location	Bottom
Depth	29.0 cm
Weight	28.0 kg
Maximum Flow Rate	42.0 L/min
Minimum Temperature	36.7 °C
Maximum Temperature	60.0 °C
Voltage	120 V
Wattage	98 W
Emission Rating	Ultra Low NOx
Wi-Fi Compatibility	Yes
Bluetooth Compatibility	Yes
Overheat Shut-Off	Yes

Highlights

ENERGY STAR Certified; Warranty: 15-year limited; Super High Efficiency

Compatibility

Compatible with standard 3/4-inch bottom water connections, 2-inch concentric venting, and 120V electrical supply for indoor wall-mount setups.

Downloads

Frequently asked questions

What type of fuel does this water heater use?

This model is designed to operate on natural gas.

Where can this tankless water heater be installed?

It is engineered for indoor, wall-mounted residential installation.

Does this model support wireless connectivity?

Yes, it features both built-in Wi-Fi and Bluetooth compatibility.

What is the water connection size and location?

It features standard 3/4-inch water connections located at the bottom of the unit.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

Orders typically ship within 5–7 business days. Returns are accepted within 30 days of delivery — see our Shipping Policy and Refund & Return Policy pages for full details.