1. Introduction
Thank you for purchasing the VEVOR LPG Gas Hot Water Heater. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your unit. Please read it carefully before use and keep it in a handy place for future reference.
This water heater is designed for use with propane/butane gas only, not methane gas. Please confirm your gas source before use. It provides constant hot water, ideal for motorhomes, trailers, yachts, outdoor camping, pet washing, and RV showering, offering endless instant hot water without an electrical connection.
2. Safety Measures
Your safety is paramount. Please adhere to the following safety guidelines:
- Always close the main gas supply to the heater when not in use or to prevent gas leakage.
- Do not place any cloth or towel on top of the gas water heater.
- If you detect any smell of gas leakage, immediately close the gas cock, open all doors and windows, and do not switch any electrical instruments on or off. Call a qualified service technician immediately.
- Do not install the gas water heater near inflammable, explosive, or acidic environments.
- Avoid touching the burner viewing window while the heater is operating.
- Regularly check the gas pipe for aging cracks or damage. It is recommended to replace rubber gas tubes every six months to prevent gas leakage.
Freezing Prevention:
In winter, if the water temperature drops below 4°C (39°F), completely drain the water from the gas water heater through the drain valve to prevent damage caused by freezing. If the water heater will not be used for an extended period, please:
- Drain water from the gas heater drain valve.
- Remove batteries from the battery boxes.
3. Product Overview & Features
The VEVOR LPG Gas Hot Water Heater is designed for convenience and efficiency, providing instant hot water wherever you need it. It features a durable construction and multiple safety mechanisms.
Key Features:
- Hot Water Output: Provides 6L to 18L per minute of hot water with a temperature rise of 25°C (77°F).
- Ignition: Battery-operated automatic IC ignition for reliable startup.
- Material: Brushed stainless steel shelling for anti-rust properties and a fashionable look.
- Multi-level Protections: Includes Over 75°C (167°F) protection, low water flow protection, anti-frozen protection, over water pressure protection, flame failure device, incomplete combustion safety device, and a 20-minute timer.
- Effortless Control: Features an LED screen to display real-time water temperature, along with gas and water control knobs for precise temperature adjustment (50°F to 140°F).
- Summer/Winter Mode: Utilizes LPG as the primary energy source with an enclosed combustion structure for uniform fire and higher burning efficiency. The winter/summer switch adjusts fire rows to save gas (e.g., shutting off 1/4 fire rows in summer saves 40% energy).
- Convenient & Exquisite Details: Equipped with a filtration mesh, standard G1/2" copper water inlet & outlet connectors, gas emission tube, D-type battery cases, and a tin-plated copper water tank for durability and safe use.
- Wall-Mount Design: Compact and easy to install, suitable for various outdoor and semi-outdoor applications.
Main product image with included shower kit.
Close-up of the LED screen displaying water temperature and control knobs for gas and water regulation.
Detailed view of internal components including copper water tank, battery compartment, gas emission tube, and back screw holes.
4. Specifications
| Feature | Specification |
|---|---|
| Hot Water Output | 6L/min (1.6 GPM), 8L/min (2.1 GPM), 10L/min (2.7 GPM), 12L/min (3.2 GPM), 16L/min (4.3 GPM), 18L/min (4.8 GPM) |
| Heater Output Power | 12KW, 16KW, 20KW, 24KW, 32KW, 36KW (depending on model) |
| Gas Type | LPG (Liquid Petroleum Gas) |
| Gas Pressure | 2800 Pa (0.41 PSI) - 3500 Pa (0.51 PSI) |
| Water Temperature Range | 10°C - 60°C (50°F - 140°F) |
| Water Connection | G1/2" pipe |
| Gas Connection | 9.5mm (0.37in) Gas hose |
| Suitable Water Pressure | 0.02 MPa - 0.8 MPa |
| Starting Pressure | 0.015 MPa |
| Exhaust Way | Open & Force Flue Exhaust Type |
| Discharge Ways | Flue Automatic Gas Discharge |
| Ignition | 2pcs 1.5V D-Type Batteries (not included) |
| Package Weight (10L model) | 1.0 kg |
| Package Dimensions (10L model) | 61 cm (L) x 38 cm (W) x 21 cm (H) |
Example dimensions for an 18L model: 25.6" (H) x 13.7" (W) x 6.3" (D).
Example dimensions for a 10L model: 21.7" (55cm) (H) x 11.8" (30cm) (W) x 5.9" (15cm) (D).
5. Installation
Important Installation Notes:
- Before installing, verify that the gas supply (LPG) meets the specifications indicated on the heater.
- Ensure that both water and gas pressures are correct.
- Installation and inspection of the heater must only be performed by qualified and authorized technicians.
Location Guidelines:
- It is always recommended to install the gas water heater outside the bathroom. Do not install it inside the bathroom.
- The heater requires ample fresh air for efficient operation. Fixed ventilators or air inlets near the heater must never be obstructed or blocked.
- There should be at least one window or door that opens directly to the outside or to a wall.
- Outside air must be able to enter the installation area (e.g., bathroom, kitchen) through an inlet on a wall, door, or window. The direct air inlet section should be at least 1.5 square feet.
- The burner viewing window should be positioned 1.4 to 1.5 meters (4.6 to 4.9 feet) from the ground.
- Maintain a minimum distance of 1 foot (30 cm) between the top of the gas heater and the ceiling for proper flue gas removal.
Product diagram showing components: Smoke collecting hood, Heating coil, Piezo igniter (No.1 & No.2), Fire shield, Gas burners, Gas valve, Pulse generator, Water/gas coupling valve, Water valve, Battery box, Gas sensor, Auto sensing on/off switch, Gas inlet, Temperature sensor, Release excess water, Cold water inlet, Bottom frame.
Fixing Steps:
- Drill two holes in the wall, insert screw nails, and mount the gas heater onto the nails.
- Ensure that the gas and water connection pipes are free of dirt or waste material and are thoroughly clean.
- Connect the gas pipe, water inlet, and water outlet connections.
- Insert two 1.5V D-type dry batteries into the battery box, ensuring correct polarity.
- Before starting the heater, ensure there is no gas leakage from the gas connection.
6. Operating Instructions
To operate your VEVOR LPG Gas Hot Water Heater, follow these steps:
- Starting the Heater: Open the water tap. As soon as water begins to flow, multiple sparks will ignite the main burner. If the burner does not ignite, close the tap and repeat the process. This may occur due to air in the gas pipe.
- Gas Regulator Control Knob: Rotate the gas knob clockwise to increase the gas supply and anti-clockwise to decrease it.
- Water Regulator Control Knob: To achieve hotter water, reduce the water flow rate by turning the knob clockwise. Turning the knob anti-clockwise will increase the water flow rate and reduce the hot water temperature. The final water temperature can be adjusted using both the gas and water control knobs.
- Summer and Winter Mode: Use the winter-summer switch to regulate the number of active fire rows. In summer, turning off 1/4 of the fire rows can save up to 40% energy.
- Shutting Off: To turn off the gas water heater, simply close the water tap.
7. Maintenance
Regular maintenance ensures the longevity and safe operation of your water heater:
- The heater should be checked annually for safe operation, focusing on the correct combustion of the main burner.
- Maintenance should only be performed by qualified and authorized technicians.
- If the heater is installed in a hard water area, scale formation may occur over time, leading to a fall in hot water temperature or a reduction in water flow. To minimize scaling, it is recommended to use the water and gas control knobs to achieve the desired water temperature, rather than mixing cold water with hot water. Scale removal should only be performed by authorized technicians.
- Regularly inspect the gas pipe for signs of aging or cracks. Replace the rubber gas tube every six months.
8. Troubleshooting
Refer to the table below for common issues and their solutions:
| Trouble | Causes | Remedies |
|---|---|---|
| Unsuccessful ignition | Main gas cock and/or cold water tap is not opened. | Open main gas cock and/or cold water tap. |
| Dry cell used up. | Replace batteries. | |
| Gas pipe is full of air. | Repeat the operation. | |
| Non-availability of Gas supply. | Replace the LPG bottle or inform the natural gas supplier to check and increase pressure. | |
| Low water pressure (less than 0.3 bar). | Check water pressure and increase it. | |
| Heater does not start. Fire goes off during operation. | Water inlet filter is clogged. | Clean the filter. |
| Gas cock is half open. | Call a qualified technician. | |
| Gas pressure is too low. | ||
| Abnormal flame and smell. Flame turns yellow with smoke. Abnormal ignition noise. | Blocked burners. | Deliver it to the nearest service center. |
9. User Tips
Based on common user experiences, here are some tips for optimal performance:
- Ensure Adequate Water Pressure: For the heater to function correctly and provide consistent hot water, a good and stable water pressure is crucial. Low water pressure can prevent ignition or cause the heater to shut off during operation.
- Check Gas Supply After Cylinder Changes: If the unit stops working after changing the gas cylinder, first ensure the new cylinder is properly connected and open. There might also be air in the gas line; try cycling the water tap a few times to purge the air. If the issue persists, check gas pressure or consult a technician.
- Outdoor Use: While designed for outdoor and portable use, ensure the unit is protected from direct heavy rain or snow to prevent damage and ensure safe operation.
10. Warranty & Support
VEVOR is committed to providing tough equipment and tools. For any questions, concerns, or technical assistance, please contact VEVOR customer service. VEVOR offers 24/7 attentive service to assist you with your product. Please refer to your purchase documentation for specific warranty details.