Liquid and Air Heater Combi | Brushless Pump Variable Frequency Heating Unit-Combi B

1. Universal DC Voltage & Low Power Consumption
Supporting dual 12V/24V DC rated voltage, the heater covers the working voltage range of 11.5–16V (12V) and 21–27V (24V), perfectly matching most vehicle power systems worldwide. The overall power consumption maintains only 15W–33W during operation, bringing extremely low battery load. It avoids excessive power loss during long-time parking heating, ensuring stable heating without draining the vehicle battery, which is more friendly for off-grid and long-distance travel scenarios.

2. Adjustable 2.8–5KW Full-Range Heating Power
Featuring stepless adjustable heating power from 2.8KW to 5KW, the Liquid and air heater combi can flexibly adapt to different cabin sizes, ambient temperatures and heating demands. Low power output is suitable for constant-temperature heat preservation in mild weather, while high power rapidly raises temperature in extremely cold environments. It balances heating comfort and energy efficiency, meeting fine heating control requirements for RV living, truck cab rest and field operation.

3. Brushless Water Pump & Automatic Frequency Conversion System
Equipped with a built-in high-efficiency brushless water pump and automatic frequency conversion technology, the system intelligently adjusts operating frequency and water circulation speed according to real-time temperature and load changes. Compared with traditional brushed pumps, the brushless structure features lower wear, quieter operation and longer service life. Intelligent frequency conversion effectively reduces invalid energy consumption, ensures stable hot water circulation and uniform heat output, and improves overall operating efficiency and durability.

4. Ultra-Long Remote Control & Intelligent Control Panel
Upgraded with 2100-meter ultra-long remote control distance, far exceeding ordinary 100-meter conventional heaters. Users can remotely start, shut down and adjust temperature from an ultra-long distance, realizing convenient pre-heating and unattended operation. Matched with a smart digital switch, it displays real-time working status, temperature and fault codes clearly, supporting precise manual setting and intelligent automatic operation, greatly improving daily use experience.

5. Lightweight Body & Complete Standard Accessories
The whole set weighs only 13kg plus 3kg accessory set, with compact overall structure and small installation footprint. It will not occupy excessive vehicle space or increase vehicle load. The package comes with a 11L large-capacity water tank, complete pipelines and all matching spare parts. Full accessory configuration supports one-time installation and direct use, saving extra purchasing cost and simplifying overseas after-sales installation and maintenance.

1. Ultra-Wide Temperature Adaptability for Global All-Weather Use
Capable of stable operation in a wide temperature range of -40°C to 80°C, the heater adapts to extreme cold northern regions, high-temperature tropical climates and complex field working environments. It maintains stable combustion and heat exchange performance in ultra-low temperature freezing weather and high-temperature harsh conditions, realizing reliable all-season heating for global cross-border travel and engineering operations.

2. Stable Diesel Combustion & Economical Fuel Consumption
Adopting optimized heat exchanger structure and precise fuel supply control, the heater takes diesel as fuel with stable and sufficient combustion. The fuel consumption is steadily controlled at 0.3–0.6L per hour. It maintains powerful dual heating performance of hot water and warm air while keeping low operating cost, with excellent energy-saving performance for long-hour continuous parking heating and outdoor camping use.

3. High Heat Exchange Efficiency & Dual-Purpose Output
The high-performance built-in heat exchanger realizes efficient energy conversion, synchronously providing stable cabin warm air and domestic hot water. It perfectly meets dual needs of indoor heating and daily bathing & cleaning for RV mobile life, replacing two sets of independent heating equipment, effectively saving vehicle space and overall procurement cost.

4. High Stability & Low Maintenance Rate
With brushless pump, frequency conversion intelligent control and high-strength heat exchanger core, the whole machine has low wearing parts and strong anti-interference ability. It can withstand frequent start-stop and long-term unattended operation, with low failure rate and stable performance. It is highly suitable for overseas individual users, modification workshops and commercial fleet batch matching projects.

1.RV & Camper Van Living

Provides synchronous cabin heating and hot water supply for self-driving travel and outdoor camping, improving mobile living comfort.
2. Truck & Logistics Fleet

Reliable parking heating and constant-temperature hot water supply for long-distance transportation and overnight rest.
3.Engineering & Field Vehicles

Adapts to extreme temperature environments, providing stable heating support for field operation vehicles and temporary work shelters.
4. Global Aftermarket Refitting

Standard configuration, complete accessories and simple installation make it ideal for overseas bulk procurement and vehicle refitting projects.