

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
This product weighs 55 lb each and will be shipped via LTL carrier. A lift gate option will be added free of charge for your convenience.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The RINNAI RXP199I is a condensing tankless water heater rated at 199,000 BTU/h with a Uniform Energy Factor (UEF) of 0.96. This unit heats water on demand, eliminating standby heat loss associated with traditional tank-style heaters. It includes an integrated recirculation pump, which reduces wait time for hot water at the point of use. The RXP199I is suited for commercial and high-demand residential applications where a single, high-capacity unit must supply multiple fixtures simultaneously. Licensed plumbers and mechanical contractors are the typical installers for this class of equipment.
The RXP199I is designed for high-demand hot water applications including multi-unit residential buildings, light commercial facilities, and large single-family homes with elevated simultaneous draw requirements. The integrated pump supports recirculation loop installations, making it well suited for buildings where long pipe runs create unacceptable hot-water wait times. Natural gas or propane fuel type should be confirmed against the specific model variant prior to installation.
Designed as an OEM condensing tankless water heater unit in the RINNAI RXP Series product line. Verify fuel type, venting category, and gas supply requirements against the installation site before ordering.
Installation must be performed by a licensed plumber or mechanical contractor in accordance with local plumbing codes and the manufacturer's installation manual. Shut off the gas supply and cold water inlet before beginning any connection work. Condensing units require proper condensate drainage; ensure a code-compliant drain is accessible at the install location. Venting must comply with applicable codes and the manufacturer's specified vent category and material requirements.
Thanks for subscribing!
This email has been registered!