Rinnai has been delivering nothing but the best for almost 100 years and that award-winning dedication can't help but be noticed in its SE Series. The RUCS75 and all of the SE Series models offer Rinnai's incredibly efficient condensing design line of tankless heaters. Rinnai's SE Series models utilize two premium heat exchangers to provide optimal reliability and durability. With a 0.90 Uniform Energy Factor and a sleek, innovative design.

Rinnai Ultra Series Tankless Water Heaters deliver innovation and technological leadership in condensing tankless water heating design while providing homeowners with an endless supply of hot water, energy savings, a space-saving design, and environmental benefits. The RUCS75 at 160,000 BTUs, available in natural gas and propane, offers condensing technology with lower capacity at attractive price points. As the only manufacturer to offer both concentric and PVC/CPVC dual pipe venting options on the same unit, the RUCS models join the Ultra Series lineup of innovative designs and enduring values.

These new Rinnai RUCS Condensing Tankless Water Heaters expand Rinnais Ultra Series condensing lineup to 6 models, in both indoor and outdoor versions, ranging from 130,000 to 199,000 BTU with efficiencies from .93 EF to .96 EF, providing the most complete condensing lineup in the industry.

Compact Design Saves Space

• The RUCS75 is designed to be able to be installed on any wall or in any compact space, including non-traditional places like an attic or crawlspace that hides your unit and frees up valuable space in your home.

Energy-Efficient Promise That Saves You Money

• Tankless water heaters avoid the need to keep a large amount of reserve water heated at all times. This saves resources by only heating water when you need it, while an electric ignition avoids the constantly wasted energy of a standing pilot light.

Continuous Water for Multiple Applications

• You should be able to have two people shower at once or do the laundry while the dishwasher is running. 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.

What's Included

• Tankless Water Heater
• MC-91-2 temperature controller (Integrated into indoor models)

Features

• Energy Efficient: ENERGY STAR product with an Energy Factor of .93 and Uniform Energy Factor of .90
• Provides a reliable source of hot water to multiple fixtures simultaneously in any size home
• Only uses energy when hot water is needed
• An excellent choice for smaller spaces. Fits in crawl spaces and attics without compromising output
• Easy installation with PVC/CPVC in conjunction with the Ubbink Concentric to Twin Pipe adaptor (other venting options available)
• Automatic frost protection
• Compatible with Wi-Fi devices

Specifications

Installation

To connect with a Rinnai-trained installer, you can utilize the Rinnai Dealer Locator by visiting the link: https://www.rinnai.us/find-pro. Alternatively, you can directly reach out to Rinnai's dedicated customer support team via the Toll-Free Number: 1 (800) 621-9419.

Options and Accessories

Documents & Files

• Download Specification Manual (Outdoor)
• Download Specification Manual (Indoor)
• Download Installation Instructions
• Download Operating Guide
• Download Energy Guide (Indoor)
• Download Energy Guide (Outdoor)
• Download Rinnai Brochure

Warranty

Videos