Ranein Propane Tankless Water Heater — Indoor, 100,000 BTU, 4.3 GPM

Fast, On-Demand Hot Water for Busy Homes

Meet the Ranein Propane Gas Tankless Water Heater, an indoor unit designed to deliver hot water when you need it. With a robust 100,000 BTU heating capacity and a maximum flow of 4.3 gallons per minute, it can comfortably support hot water across a bathroom, kitchen, and bar area without the usual wait.

In real-life use, you might enjoy a quick shower after a long day, a fast rinse for dishes, and steady hot water for multitasking in the kitchen—without waiting for a tank to reheat.

What makes this tankless system stand out

• High heat output: 100,000 BTU delivers rapid hot water when you need it.
• Steady flow: up to 4.3 GPM supports multiple fixtures in a home.
• All-in-one kit: includes the exhaust pipe, so extra parts are minimized for basic setup.
• Standard fittings: compatible with common 1/2 inch NPT water and gas connections.

Smart features that adapt to your season

The Four Seasons Function automatically adjusts temperature as incoming water changes with the weather. The Kitchen Function keeps a default output near 100°F for cooking and dishwashing, while the Bathtub Function allows you to adjust output quantity with a reminder when you reach the set limit.

Efficient, no-wait hot water

Traditional tanks require waiting, but this unit provides hot water on demand. The tankless design minimizes standby heat and can contribute to a more efficient setup over time, especially in homes with multiple simultaneous hot water needs.

Safety, protection, and setup reminders

A built-in anti-freeze feature guards against very low temperatures (down to 14°F). If conditions drop, open the drain valve to prevent pipe damage. For safety and code compliance, professional installation is advised, and it isn’t recommended for elevations above 2,000 feet.

Important notes

• Exhaust pipe is included for easier installation.
• Oxygen-free copper water circuit helps minimize heat loss and improve efficiency.
• Designed to connect with standard 1/2 inch NPT water and gas lines.