Fuel Water Heater / Gas Water Heater
Belief fuel water heaters / gas water heaters are designed for mobile living environments such as RVs, camper vans, and yachts. They heat domestic water by burning diesel or liquefied petroleum gas (LPG), with optional AC 220V mains electric heating, providing hot water for kitchen washing and bathroom showers. The products feature economical and energy-efficient operation, high-power rapid heating, a virtually continuous hot water supply, an intelligent high-altitude function, and ultra-quiet operation. Diesel consumption is 190–460 ml/h, the rated water pressure does not exceed 0.4 MPa, the safety valve activation pressure is 0.5 ± 0.05 MPa, and the operating ambient temperature is 1–40°C.
Core Advantages
Diesel / LPG Options
Choose between a diesel model and a liquefied petroleum gas (LPG) model based on the energy configuration of the vehicle or vessel.
Optional Mains Electric Heating
Both diesel and gas models can be equipped with optional AC 220V mains electric heating, providing greater energy flexibility when connected to shore power at a campsite.
Rapid Heating
The original page highlights energy-efficient, high-power rapid heating, making it suitable for concentrated washing, cleaning, and showering needs while on the move.
Near-Continuous Hot Water Supply
When water, fuel, and power requirements are met, the hot water supply can operate almost continuously, reducing waiting time.
Smart High-Altitude Function
Features a smart high-altitude function designed for use at high elevations. The actual applicable altitude should be confirmed based on the selected model and the manufacturer's technical documentation.
Ultra-Quiet Operation
Designed for sleeping and living spaces in RVs, camper vehicles, yachts, and similar applications, the product emphasizes a low-noise operating experience.
Water Pressure Safety Design
The rated water pressure of the diesel model does not exceed 0.4 MPa, and the safety valve actuation pressure is 0.5 ± 0.05 MPa.
Designed for Mobile Spaces
Suitable for kitchen, sink, and shower water applications on mobile platforms such as RVs, camper vehicles, and yachts.
Technical Specifications
| Parameter | Original Page Data |
|---|---|
| Product Type | Fuel Water Heater / LPG Gas Water Heater |
| Fuel Model | YJH-4.5/1C 1800/220 |
| Fuel Type | Diesel / LPG |
| Fuel Consumption | 190-460ml/h |
| Maximum Operating Current | 8-10A |
| Mains Voltage | AC 220V |
| Rated Water Pressure | ≤0.4MPa |
| Safety Valve Activation Pressure | 0.5±0.05MPa |
| Operating Ambient Temperature | 1-40°C |
Product Appearance, Operating Principle, and Installation Dimensions
Applications
Hot Water for RV Living
Connects to the vehicle's fresh water tank, pressure pump, and hot and cold water lines to provide hot water for the RV kitchen sink, washbasin, and shower.
Camper Van and Camping Vehicle Conversions
Suitable for camper vans and camping vehicles with fixed water tanks and compliant installation space, meeting washing and basic showering needs during long-distance travel.
Yacht and Marine Living Quarters
Can be used as a domestic hot water appliance for yacht kitchens and bathrooms. When selecting a model, confirm corrosion protection, ventilation, exhaust, and marine safety requirements.
Use with Campsite Power
With the optional AC 220V electric heating function, mains-powered heating can be used where compliant shore power or campsite power is available.
High-Altitude Travel
The smart high-altitude function is designed for changing elevations. Before departure, confirm the specific model's applicable altitude range, combustion calibration, and local safety requirements.
Mobile Work and Support Vehicles
Suitable for domestic water applications in mobile work vehicles, logistics support vehicles, and similar vehicles equipped with a water tank, supply pump, and safe installation conditions.
Recommended Components (Subject to Order Confirmation)
Frequently Asked Questions
How should I choose between the fuel-powered and gas-powered versions?
The choice should be based primarily on the vehicle's or vessel's existing energy system, installation location, fuel availability, and local regulations. Diesel vehicles are generally better suited for the fuel-powered version; platforms with an existing compliant LPG system may consider the gas-powered version.
What is the fuel type and fuel consumption of the fuel-powered version?
It uses diesel, with a fuel consumption of 190–460 ml/h. Actual consumption varies depending on the inlet water temperature, flow rate, set temperature, and ambient conditions.
Is mains-powered heating included as standard?
No. The original product page states that mains power is optional for both the fuel-powered and LPG-powered versions, with a mains voltage of AC 220 V. Please specify when ordering whether a mains power module is required.
Can it provide hot water continuously?
The hot water supply is virtually continuous. Actual continuous hot water capacity depends on the fuel or power supply, inlet water temperature, water pump flow rate, target water temperature, and the unit's heat load.
What are the water supply pressure requirements?
The rated water pressure of the fuel-powered model is no more than 0.4 MPa, and the safety valve activation pressure is 0.5 ± 0.05 MPa. The water pump, pressure stabilization device, pipes, and valves must be compatible with this pressure range.
What is the operating ambient temperature?
The operating ambient temperature is 1–40°C. In low-temperature environments, insulate the water lines and drain them to prevent freezing, as frozen water may damage the main unit or pipes.
Can it be used at high altitudes?
It features intelligent high-altitude operation and can be used at elevations of up to 5,000 meters.
What precautions should be taken during installation?
The unit involves fuel, gas, high-temperature exhaust, AC 220 V electricity, and pressurized water lines. It should be installed by personnel with the appropriate qualifications or experience. Ensure that the air intake and exhaust outlets are isolated from the living compartment and that all lines are leak-free.
How can it be protected from freezing during long periods of non-use?
After stopping use and allowing the unit to cool, shut off the fuel or gas supply and the power supply, then completely drain the water heater and pipes according to the instructions. In cold environments, do not rely on the safety valve alone to drain the system.
Operating Principle, Selection, and Safety Instructions
工作原理
车体水箱中的清水由压力泵送入热水器。设备通过柴油或LPG燃烧加热水流；选配市电模块时，也可使用AC 220V电加热。加热后的生活热水经阀门送往厨房龙头、洗手盆和淋浴花洒。
型号选择
选择燃油型或燃气型时，应同时确认燃料系统、额定电压、用水人数、目标出水温度、设计流量、进水温度、安装空间和排气路径。燃气型未公开的供气压力、热负荷和耗气量必须以厂家确认资料为准。
水路设计
清水箱、压力泵、止回和泄压组件、冷热水管及龙头应按设备额定水压配置。安全阀排水口需要接至安全位置，不得封堵。水路安装完成后应进行压力与渗漏检查。
燃料与排气安全
燃油或LPG管路应使用适配材料和接头，并远离高温、运动和锐利部件。燃烧进气和废气排放必须通向车外或舱外，防止废气进入人员活动空间。燃气系统应按适用法规配置稳压、截止和泄漏检测装置。
电气安全
AC 220V选配模块应使用可靠接地、过流保护和漏电保护。车载低压控制线路与市电线路应分开布置，并按说明书规定的线径和保险规格施工。
防冻与维护
工作环境接近冰点或长期停用时，应按说明排空主机和水路，避免冻裂。定期检查燃料或燃气管路、进排气、水泵、阀件、电气连接和安全阀状态；出现泄漏、异常气味、异常排烟或故障报码时应立即停机检查。
资料边界
本页的公开参数依据原产品页面整理；包装组成、燃气型参数、具体高原范围、实际出水能力和安装规范应以合同、订单确认单及对应型号说明书为准。
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