The best camper van hot water system depends on how you travel: propane tankless models suit continuous showers, a portable heater works for outdoor use, and a small electric tank can serve a sink when 110V power is available. The Xenjum and Somokg units emphasize high output and controls, while the ORBEK is designed for RV replacement openings. The CAMPLUX is the portable choice, and the ERFEI is a compact under-sink option.
| System | Best for | Power or fuel |
|---|---|---|
| Xenjum dual-outlet tankless | Hot water at multiple outlets | Propane and 12V |
| CAMPLUX AY132G portable | Outdoor showers and portable setups | Propane and D batteries |
| ERFEI 2.5-gallon mini tank | Point-of-use sink hot water | 110V electric |
| ORBEK RV tankless | RV water-heater replacement | Propane and 12V DC |
| Somokg 65,000 BTU tankless | High-output off-grid hot water | Propane and 12V |
Xenjum Dual-Outlet Tankless Water Heater
The Xenjum is best for camper van owners who want an on-demand propane system connected to both interior and exterior water outlets. Its listed output is up to 65,000 BTU and 3.9 gallons per minute, with temperature adjustment from 95°F to 123°F using a remote control.
It is selected for its dual-outlet design, which can serve indoor tasks such as showering and dishwashing as well as outdoor uses such as pet washing. The listed 12V power and automatic ignition when a tap opens make it a fit for buyers seeking a tankless setup rather than stored hot water. The product also describes automatic seasonal flame adjustment.
- Best for: Vans needing hot water at more than one outlet.
- Choose this if: Remote temperature adjustment and the stated 3.9 GPM output matter.
- Limitation: Confirm the unit’s dimensions, mounting requirements, and plumbing fit before purchase; the listed door size is 15 by 15 inches.
CAMPLUX AY132G Portable Tankless Heater
The CAMPLUX AY132G is best for campers who want a portable outdoor shower system rather than a permanently installed van water heater. It provides a stated 1.32 GPM of on-demand hot water and weighs 10 pounds. A folding handle supports carrying and storage, while temperature and water-flow dials let users adjust the output.
This model is selected for its portability and low listed starting water pressure of 3.0 PSI. It operates on propane and two D-size batteries, so it does not require a standard electrical connection according to the product description. That can suit outdoor setups, remote cabins, and some RV use where a portable arrangement is preferred.
- Best for: Outdoor showers and occasional portable hot-water use.
- Better for: Buyers who prioritize compact storage and carrying over a built-in system.
- Limitation: The listed 1.32 GPM output is lower than the output stated for the larger tankless RV units. Check your intended water flow and setup needs.
ERFEI 2.5-Gallon Electric Mini Tank
The ERFEI is best for a camper van with access to 110V power that needs hot water close to a sink. This 2.5-gallon mini tank uses a listed 1500W electric heating element and has an LED display for reading and adjusting water temperature. Its compact design is intended to fit beneath sinks, in cabinets, or other tight spaces.
Unlike a propane tankless heater, this unit stores a small amount of heated water. That makes it a possible point-of-use option for handwashing and dishwashing, but it is not presented as a continuous-flow shower system. It is included because camper van hot water needs can be limited to a sink, particularly in a vehicle that regularly has access to electrical power.
- Best for: Sink use in a van with a suitable 110V supply.
- Choose this if: A compact tank and readable temperature display are priorities.
- Limitation: It is an electric 110V model, not a 12V-only system. Check available power and installation requirements before choosing it for off-grid use.
ORBEK 12V Propane RV Tankless Heater
The ORBEK is best for RV owners or van converters replacing an existing water heater in a compatible opening. Its propane burner is rated at 60,000 BTU, and the product describes continuous on-demand water for showers, dishwashing, and handwashing. The heater uses 12V DC and operates its burner when hot water is requested.
Its distinguishing fit information is a set of listed opening sizes: 15 by 15 inches, 15 by 18 inches, and 18 by 18 inches. The product says door panels are available separately. It also lists a high-altitude suitability mode, a copper heat exchanger, and brushless DC fans.
- Best for: Buyers replacing an RV-style unit who can verify the existing cutout.
- Better for: Travelers who want a propane system with a stated high-altitude mode.
- Limitation: Door panels are described as separately available. Confirm the opening size and panel needs before ordering.
Somokg 65,000 BTU Tankless Water Heater
The Somokg is best for buyers looking for a high-output propane tankless system with a listed door and remote. The product specifies up to 65,000 BTU and 3.9 GPM, along with 12V operation, a 15-by-15-inch lockable door, and temperature control described as accurate to ±1°F.
It is selected for its stated combination of output and features for off-grid camping, including automatic ignition and shutoff with faucet use and automatic seasonal flame adjustment. The product also describes a copper heat exchanger, widened gas nozzles, and operation at altitudes up to 9,840 feet. These are manufacturer-listed specifications, so buyers should verify fit and operating requirements for their own installation.
- Best for: Buyers seeking a tankless RV-style unit with a 15-by-15-inch door included.
- Choose this if: The stated 3.9 GPM output and high-altitude specification suit your needs.
- Limitation: Its specified door size may not match an existing opening. Measure the cutout and check the installation details first.
Buying Guide: Choosing a Camper Van Hot Water System
Do you need continuous hot water or a small stored supply?
Tankless heaters warm water on demand and do not store a tank of heated water. The Xenjum, CAMPLUX, ORBEK, and Somokg options use this approach. Their listed flow rates differ, so compare output with the number of outlets and the way you expect to use water. A small tank such as the ERFEI’s 2.5-gallon design can suit a nearby sink, but its stored supply is limited.
Which power source fits your travel style?
Match the heater to the energy available in the van. The listed tankless RV models use propane and 12V power, while the CAMPLUX uses propane and two D-size batteries. The ERFEI requires a 110V supply and draws 1500W as specified. A 110V appliance may need an appropriate power source when the van is away from shore power; confirm your electrical setup and the product’s requirements before installation.
Will it serve a shower, a sink, or multiple outlets?
For regular shower use, compare the stated flow rates and confirm that the rest of the plumbing system can supply the needed water. The Xenjum explicitly lists interior and exterior outlets. The CAMPLUX is a portable outdoor shower-oriented option with 1.32 GPM. The ERFEI is described for point-of-use tasks such as washing dishes and hands. Do not assume that a product supports multiple fixtures unless its specifications confirm that arrangement.
How important are dimensions and installation?
Measure the intended mounting space and any existing RV water-heater opening before selecting a built-in unit. The ORBEK lists several opening dimensions, while the Xenjum and Somokg listings specify a 15-by-15-inch door. A stated door size alone does not establish that a unit will fit every opening. Check clearances, plumbing connections, venting, fuel requirements, and installation instructions for the exact model.
What should high-altitude travelers compare?
Travelers who regularly camp at elevation should review the manufacturer’s altitude specifications and operating guidance. The ORBEK listing describes a high-altitude suitability mode, and the Somokg listing states operation up to 9,840 feet. These are product claims, not a substitute for checking the model’s instructions or asking the manufacturer about a particular elevation and installation.
How should you balance portability and permanent installation?
A portable heater can be carried and stored when not in use, making the CAMPLUX a better fit for outdoor bathing and flexible camp setups. A built-in unit may be more suitable for a van with planned plumbing and a fixed installation. Consider storage space, how often you need hot water, and whether you want to connect the unit to interior fixtures.
What details should you verify before buying?
- Confirm the exact fuel, electrical supply, water connections, and installation requirements.
- Compare the listed flow rate with your expected shower or sink use.
- Measure the installation area, cutout, and door dimensions.
- Check whether a remote, door panel, regulator, or other accessory is included or sold separately.
- Review the manufacturer’s directions for ventilation, freeze protection, and safe operation.
Frequently Asked Questions
What type of water heater is common for camper vans?
Tankless propane heaters are one option for on-demand hot water, while compact electric tanks can serve point-of-use needs. The right type depends on available fuel and power, plumbing design, and whether hot water is needed for a shower or mainly for a sink.
Can a 110V mini-tank run from a 12V van system?
The ERFEI listing specifies 110V and 1500W, not direct 12V operation. Check the electrical system and the heater’s requirements before use; do not assume a 12V battery can power it without suitable equipment.
Is a portable water heater suitable for a permanent shower?
A portable model such as the CAMPLUX is described for outdoor shower use and portable setups. Whether it suits a permanent installation depends on its instructions, mounting, plumbing, and ventilation requirements. Verify those details before installing it in a van.
How do I choose the right flow rate?
Compare the stated gallons per minute with the fixtures you plan to use and your water system’s capacity. A higher listed flow rate may be useful for a shower or multiple water needs, but the product specification does not by itself guarantee performance in every installation.
Do I need to measure an RV water-heater opening?
Yes. Measure the existing cutout and compare it with the unit’s listed opening and door dimensions. The ORBEK listing names multiple opening sizes, while other listed models specify a 15-by-15-inch door. Confirm all fit details before purchase.