Ranein Gen II RV Tankless Water Heater — 65k BTU, CSA Approved, 12V On-Demand

Powerful on-demand hot water for RV living

The Gen II RV Tankless Water Heater from Ranein brings on-demand warmth to your adventures. Powered by a 65,000 BTU high-output burner, it heats water faster and maintains steadier temperatures, even in chilly spots at the campground. With support for up to 3.9 gallons per minute (GPM), you can run a shower and a faucet simultaneously without noticeable temperature drops.

Smart, RV-ready design

Designed for RV setups, this 12V DC powered unit fits standard RV cutouts and matches common plumbing connections, making it a replacement option for many 6/10/12-gallon tank heaters. The system is built for reliability on the road and is compatible with typical RV electrical layouts, including altitudes up to 9,800 feet to help sustain performance in varied locations.

Key performance and features

• 65,000 BTU high-output burner for faster heating and stable temperatures
• Up to 3.9 GPM flow to support simultaneous hot water use
• Precise temperature control from 95°F to 124°F with staged combustion
• Altitude-ready operation up to 9,800 ft

Safety, durability, and convenience

Safety is built in: flame failure protection with automatic gas shut-off helps maintain peace of mind. A top-mounted exhaust fan supports stable combustion, and an anti-freeze function activates below 42.8°F to safeguard components. The unit is CSA certified and includes a built-in pressure relief valve for RV use.

• Flame failure protection and automatic gas shut-off
• Anti-freeze protection for cold conditions
• CSA certification and included pressure relief valve

Design, installation, and durability

With a footprint designed to replace standard tank heaters, the Gen II offers convenient installation. The 12.8" × 12.8" opening accommodates common setups, and optional exterior door kits let you customize the look. An oxygen-free copper heat exchanger delivers efficient heat transfer and long-term durability, helping heat water quickly and consistently across trips.

• Replacement-friendly footprint for easy installation
• Optional exterior door kits for a tailored appearance
• Oxygen-free copper heat exchanger for durable performance

Who benefits

Ideal for full-time RVers, families, and travelers who want reliable hot water during extended trips, including cooler climates. The Gen II supports multiple users and helps minimize temperature swings during peak demand.