Rinnai RE Series with Smart-Circ 6.6 GPM Indoor NCTWH with Recirculation and Pump, LP

Rinnai HE+ Series 9.8 GPM Indoor Non-Condensing Tankless Water Heater, LP - RL94iP

The Rinnai RE Series with Smart-Circ 6.6 GPM Indoor NCTWH (Natural Gas Tankless Water Heater) is a high-efficiency water heating system that provides an endless hot water supply on demand. It features a compact design that can be installed in various locations, including inside a home or business.

One of the critical features of this water heater is the Smart-Circ technology, which helps to improve the overall efficiency of the system by recirculating hot water through the pipes to reduce standby losses. This helps save energy and reduces the wait time for hot water at the tap.

In addition to the Smart-Circ technology, this water heater also comes with a recirculation pump and a built-in temperature control system to ensure the water is always at the desired temperature. It has a maximum flow rate of 6.6 gallons per minute, making it capable of supplying hot water to multiple faucets or appliances at the same time.

The Rinnai RE Series with Smart-Circ 6.6 GPM Indoor NCTWH is fueled by natural gas and has a maximum input of 199,000 BTUs per hour. It is suitable for use in homes or businesses with high hot water demand and is compatible with standard residential plumbing systems.

Features

• Smart-CircIntelligent Recirculation

• Clean Internal Layout

• LED Screen

• New Sliding Wall Bracket

• Safety Handle and Seating Bracket

• Built-In Recirculation Control

• Recirculation-Ready Models include Built-In Pump

• Wall Mounting Bracket

• Easy Open / Close Access

• Programmable Service Reminders

• Compact Copper Heat Exchanger

• Valve Kit

• Optional Leak Detection Kit

• Optional Freeze Protection

• 160,000 BTUs

• Hot Water Capacity Range:  0.26 GPM to 6.6 GPM

• 0.81 Uniform Energy Factor

• Dimensions:  14.05" x 22.87" x 10.77"

Specification

What Our Experts Think

• High 9.8 GPM Flow Rate: Supports large homes with multiple simultaneous hot-water demands.

• Propane-Powered Efficiency: Provides strong, reliable hot water with lower energy consumption.

• Indoor Non-Condensing Design: Easy to install in utility rooms while saving space.

• HE+ Series Performance: Delivers consistent temperature with advanced safety and control features.

Q&A

Q: Is this model suitable for high-demand households?
A: Yes — its 9.8 GPM flow rate is ideal for homes running several showers or appliances at once.

Q: Does this unit require venting?
A: Yes, being an indoor non-condensing model, it requires proper venting per manufacturer guidelines.

Q: Is it energy efficient?
A: Absolutely — the tankless design heats water only when needed and reduces standby energy loss.

Maintenance Tips

• Flush annually to remove scale buildup and maintain performance.

• Inspect propane and water connections regularly for leaks.

• Clean or replace venting components periodically to ensure proper airflow.

• Follow manufacturer service guidelines for long-term reliability.