1. Introducció
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Ranein 2025 GEN II ExploreFlow Pro RV Tankless Water Heater. Please read all instructions carefully before installation and use. Retain this manual for future reference.

Image 1.1: Ranein RV Tankless Water Heater, engineered for adventure and CSA certified.
2. Informació de seguretat
Your Ranein water heater is designed with safety in mind and is CSA-certified. Adhere to all local codes and regulations during installation and operation. Failure to do so may result in property damage, personal injury, or death.
Precaucions generals de seguretat:
- Assegureu-vos una ventilació adequada durant el funcionament.
- No emmagatzemeu materials inflamables a prop de l'escalfador d'aigua.
- Verify gas connections are secure and leak-free.
- The unit features an automatic gas shut-off if flames fail.
- An anti-freeze system activates below 42.8°F (6°C) to prevent damage.
- A built-in pressure relief valve drains excess water if pressure is too high.

Image 2.1: Illustration of the built-in pressure relief valve, designed to release excess water pressure.
3. Producte acabatview
The Ranein 2025 GEN II ExploreFlow Pro is a 65,000 BTU on-demand RV tankless water heater designed for continuous hot water supply. It features a multi-function controller, a thermostatic chamber for stable temperatures, and high-altitude readiness.
Característiques principals:
- Aigua calenta il·limitada: Delivers up to 3.9 GPM at 65,000 BTU.
- Thermostatic Chamber: Ensures consistent water temperature by automatically adjusting heat output.
- Multi-Function Remote Control: Displays real-time gas usage, voltage, water flow rate (GPM), anti-freeze activation status, and supports high-altitude operation.
- High Altitude Ready: Operates efficiently at altitudes up to 9,800 feet.
- Anti-Freeze System: Automatically activates below 42.8°F (6°C).
- Certificat CSA: For safety and reliability.

Image 3.1: The Ranein ExploreFlow Pro RV Tankless Water Heater and its digital remote control.

Image 3.2: Key features of the Ranein RV Water Heater, highlighting its performance and design.

Image 3.3: Details of the 2025 GEN II performance upgrades, including enhanced efficiency and quiet operation.

Image 3.4: Illustration of the constant temperature chamber, which prevents temperature fluctuations.
4. Instal·lació
The Ranein ExploreFlow Pro is designed for easy replacement of most RV water heaters, fitting a standard 12.8" x 12.8" opening. Compatible door kits are sold separately.
Passos d'instal·lació:
- Preparació de l'obertura: Ensure your RV has a 12.8" x 12.8" cutout.
- Mount Unit: Secure the water heater into the prepared opening.
- Connecteu les línies d'aigua: Connect the 1/2" NPT water inlet and outlet.
- Connectar la línia de gas: Attach the 5/8"-18UNF gas interface.
- Connectar l'alimentació: Wire the unit to a 12V DC power supply (Black for positive, White for negative).
- Install Remote Control: Connecteu el comandament a distància amb cable.
- Comprovació de fuites: After all connections, check for any gas or water leaks.
Attention: If the unit does not start after installation, verify that the hot and cold pipes are not reversed.

Image 4.1: Dimensions and compatibility for RV installation, showing a 12.8" x 12.8" cutout.

Image 4.2: Connection points for power, water, and gas on the Ranein water heater.
5. Funcionament
The multi-function remote control allows for easy management of your water heater settings and monitoring.
Using the Multi-Function Remote Control:
- Configuració de la temperatura: Adjust desired water temperature.
- Visualització en temps real: View real-time GPM (gallons per minute), current temperature, voltage, and gas usage.
- Mode d'alta altitud: Activate for optimal performance at elevations up to 9,800 feet.
- Anti-Freeze Activation: Monitor the status of the automatic anti-freeze system.
- Codis d'error: The display will show error codes if an issue occurs.

Image 5.1: The multi-function remote control interface, displaying temperature, voltage, and other operational data.

Image 5.2: Detailed explanation of the remote control's display and functions.

Image 5.3: The water heater's capability to operate effectively in high altitude environments up to 9,800 feet.

Imatge 5.4: Ex.amples of the water heater's versatile applications in an RV setting.
6. Manteniment
Regular maintenance ensures the longevity and optimal performance of your Ranein water heater.
Punts clau de manteniment:
- Anti-Freeze System: The unit has an automatic anti-freeze system. Ensure it is functioning correctly, especially in cold climates.
- Hivernització: For extended periods of non-use in freezing temperatures, it is recommended to fully drain the water heater and plumbing system to prevent damage, even with the anti-freeze system.
- Neteja: Periodically inspect and clean the exterior of the unit.
- Ventilació: Keep the exhaust fan and air intake clear of obstructions.
7. Solució De Problemes
This section addresses common issues you might encounter with your Ranein water heater.
Problemes comuns i solucions:
- Sense aigua calenta:
- Check gas supply and connections.
- Verify 12V power supply is connected and functional.
- Ensure water flow is sufficient (minimum flow rate required for activation).
- Check remote control for error codes.
- Fluctuating Water Temperature:
- The thermostatic chamber should prevent this. If it occurs, check water pressure and flow consistency.
- Ensure the unit is not cycling on/off rapidly due to low flow.
- La unitat no comença:
- Confirm hot and cold water lines are connected correctly (not reversed).
- Check for error codes on the remote control.
- Gas Shut-off:
- The unit has an automatic gas shut-off if flames fail. If this happens repeatedly, check gas pressure and ventilation.
8. Especificacions
Detailed technical specifications for the Ranein 2025 GEN II ExploreFlow Pro RV Tankless Water Heater.

Image 8.1: Detailed product parameters and dimensions.
| Especificació | Detall |
|---|---|
| Marca | Ranein |
| Número de model | RA65LH |
| Dimensions del producte | 15 cm d'amplada x 15 cm d'alçada |
| Dimensions del tall | 12.8 cm x 12.8 cm |
| Valoració BTU | 65,000 BTU |
| Caudal (GPM) | Max 3.9 GPM |
| Tipus de combustible | Propà (gas LP) |
| Entrada de potència | 12V DC |
| Pressió de funcionament de l'aigua | 10 PSI - 110 PSI |
| Fuel Inlet Pressure | 0.4 PSI |
| Configuració del rang de temperatura | 95°F (35°C) - 124°F (51°C) |
| Característiques especials | Multi-Function Remote Control, Thermostatic Chamber, Anti-Freeze System, CSA Safety Certification |
| Pes de l'article | 27.8 lliures |
9. Garantia i Suport
Ranein is committed to providing reliable products and excellent customer service.
Informació de la garantia:
- Your Ranein water heater comes with a 2 any de garantia contra defectes de fabricació.
- The product also features 8 types of security protection for enhanced durability and safety.

Imatge 9.1: acabatview of the 2-year warranty and 8 types of security protection features.
Atenció al client:
For comprehensive product problem-solving service or any inquiries, please contact the Ranein Team:
- Correu electrònic: servei@ranein.net
- Telèfon dels EUA: (424)-452-2630





