A tankless water heater can give your camper hot water on demand without storing it in a tank, but the right choice depends on more than burner size. Check your RV’s cutout and door dimensions, propane and water connections, 12-volt power needs, and the controls you want before you buy. These five propane models offer different combinations of heating capacity, outdoor water access, and installation features.
Table of Contents
Quick Comparison
| Product | Heating Capacity | Standout Feature | Door or Opening Details |
|---|---|---|---|
| Poukaran 65,000 BTU RV Tankless Water Heater | 65,000 BTU | Internal and external water outlets | 13 × 13-inch opening; 18 × 15-inch door |
| ORBEK RV Tankless Water Heater | 60,000 BTU | Built-in 150 PSI pressure-reducing valve | Panels available separately for several opening sizes |
| VEVOR RV Tankless Water Heater | 42,000 BTU | LED touch display and outdoor outlet | 15 × 15-inch door |
| CAMMOO 65,000 BTU RV Tankless Water Heater | 65,000 BTU | Wired controller and dual outlets | 15 × 15-inch door |
| FOGATTI InstaShower 8 Plus | 55,000 BTU | Multiple door-size options and built-in valve | 13 × 13-inch opening with a 15 × 15-inch door option |
Our Picks: Best Tankless Water Heater For Camper reviews
1. Poukaran 65,000 BTU: Best for Dual Water Access
The Poukaran is a propane-powered, on-demand heater with a 65,000 BTU burner. It uses 12-volt DC power for its controls and fan, so propane provides the heat while the RV’s electrical system supports operation. The maker lists an adjustable temperature range of 95°F to 123°F.
Its most distinctive feature is the pair of water outlets: one for use inside the RV and another for outdoor tasks such as washing pets. The unit is described as fitting a 13 × 13-inch opening, with an 18 × 15-inch door. That difference matters: check both the cutout and the exterior door dimensions against your camper before ordering.
The listed features include an oxygen-free copper heat exchanger, brushless DC fan, freeze protection, forced exhaust, automatic gas shutoff, and CSA certification. These features make it a strong choice for campers wanting higher stated heating capacity and an outdoor water connection. The provided information does not give a specific flow rate, so don’t assume BTU capacity alone predicts how many fixtures can run comfortably at once.
Pros:
- 65,000 BTU propane burner
- Separate internal and external water outlets
- Adjustable temperature from 95°F to 123°F
- CSA certification and listed safety features
Cons:
- The 18 × 15-inch door may not match your existing RV opening or panel
- No maximum water-flow figure is provided in the supplied specifications
Verdict: Choose the Poukaran if dual water access and a 65,000 BTU rating are priorities, provided its door and cutout measurements suit your camper.
2. ORBEK 60,000 BTU: Best for Built-In Pressure Control
The ORBEK is a 60,000 BTU propane model designed for RV showers, dishwashing, and handwashing. It runs on 12-volt DC power and heats water on demand, rather than keeping a tank of water hot. Its control allows temperature adjustment from 95°F to 123°F, and the unit displays error codes.
A built-in 150 PSI pressure-reducing valve is a notable convenience, since it may reduce the need to source that part separately. The manufacturer also lists oxygen-free copper heat exchangers, brushless DC fans, and a high-altitude mode intended for operation up to 9,800 feet. Treat that altitude figure as a stated product capability, not a substitute for checking the manual and installation requirements for your specific setup.
Door panels are sold separately, with options listed for 15 × 15-, 15 × 18-, and 18 × 18-inch openings. That flexibility can help when replacing an existing unit, but you’ll need to confirm both the cutout and panel fit. Compared with the Poukaran and CAMMOO, the ORBEK has a slightly lower stated BTU output, but its included pressure-reducing valve may simplify parts planning.
Pros:
- Built-in 150 PSI pressure-reducing valve
- Temperature control and error-code display
- High-altitude mode listed up to 9,800 feet
- Door panels offered for several common dimensions
Cons:
- Door panels are available separately
- At 60,000 BTU, it has less stated heating capacity than the 65,000 BTU options here
Verdict: The ORBEK is a sensible fit if its pressure valve and door-panel options suit your installation, and you’re comfortable confirming panel compatibility before purchase.
3. VEVOR 42,000 BTU: Best for Simple Touch Controls
The VEVOR is a propane RV tankless heater rated at 42,000 BTU. It has an LED display with touch controls for temperature and power, making it a straightforward option if you want settings and operating information visible at the control panel.
It includes an outdoor water outlet as well as an internal outlet, which can be useful for washing pets or gear without bringing that task inside. The product information lists a 15 × 15-inch door, a 12.6 × 12.6 × 14-inch rear chamber, 1/2-inch NPT water and gas connectors, and a 2.36-inch exhaust pipe. Compare these details with your RV’s existing installation rather than relying on door size alone.
Its 42,000 BTU rating is lower than the other models in this lineup. That makes the VEVOR the lower-capacity pick on paper, though actual results also depend on incoming water temperature, flow, and how the unit is installed. Its listed segmented combustion is intended to adjust heating for different seasons, but the supplied details do not include a maximum flow rate or temperature range.
Pros:
- LED display with touch controls
- Outdoor outlet for washing pets or equipment
- Useful installation dimensions and connector details are provided
- Seasonal segmented combustion feature
Cons:
- Lowest stated BTU rating among these five options
- The supplied specifications don’t state a temperature range or maximum flow rate
Verdict: Consider the VEVOR if its 15 × 15-inch door and connection details match your camper and you value a touch display over a higher listed BTU rating.
4. CAMMOO 65,000 BTU: Best for a Wired Controller
The CAMMOO pairs a 65,000 BTU propane burner with 12-volt DC power and a wired controller. It also has dual water outlets, including an external outlet for outdoor use. The listed door size is 15 × 15 inches, so check the cabinet opening and the full installation dimensions before treating it as a direct replacement.
The product information describes temperature regulation, automatic high-altitude and anti-freeze modes, and CSA certification. Its wired controller displays operating status and uses a plug-and-play connector, according to the manufacturer. The stated installation checklist calls for 12-volt DC power in a 5–10 amp range, water flow above 0.5 GPM, and propane pressure between 2.0 and 3.3 kPa. Confirm those requirements in the current product documentation and against your RV’s systems.
This model has a higher stated BTU rating than the VEVOR and includes more installation guidance in the supplied description. However, the product information does not specify a maximum flow rate or temperature range. Don’t assume that its higher BTU rating alone will ensure stable hot water in every climate or at every flow rate.
Pros:
- 65,000 BTU rating and dual water outlets
- Wired controller with a status display
- CSA certification is listed
- Installation checklist provides electrical, water-flow, and propane-pressure details
Cons:
- The 15 × 15-inch door may not match every camper’s cutout
- Maximum flow rate and adjustable temperature range aren’t provided in the supplied specifications
Verdict: The CAMMOO is worth considering if you want dual outlets and a wired controller, and its stated power, pressure, and fit requirements match your RV.
5. FOGATTI InstaShower 8 Plus: Best for Multiple Door Options
The FOGATTI InstaShower 8 Plus is a 55,000 BTU propane heater with 12-volt DC power. The manufacturer lists a maximum output of 2.9 gallons per minute and describes staged combustion to help adjust heating as conditions change. A built-in pressure relief valve and a remote controller are included, according to the supplied product details.
Its listed opening is 13 × 13 inches, with a 15 × 15-inch door option. The manufacturer says it can replace some 6-gallon tank heaters and certain tankless units, while a 10-gallon tank replacement may need an 18 × 18-inch door. Those are not universal fit guarantees: check your RV’s cutout, wall depth, connections, and the specific door configuration before purchasing.
The FOGATTI stands out for providing a flow-rate figure and several fit notes—details that are not supplied for most of the other models here. It also lists high-altitude operation up to 9,800 feet, along with forced exhaust, anti-freeze protection, and automatic gas shutoff for flame failure. As with any propane appliance, proper installation and following the manufacturer’s safety instructions are essential.
Pros:
- 55,000 BTU rating and stated maximum flow of 2.9 GPM
- Built-in pressure relief valve and remote controller
- High-altitude mode listed up to 9,800 feet
- Fit guidance for different RV door and tank configurations
Cons:
- A 10-gallon tank replacement may require a different door size or modifications
- Confirm which door option is included with the configuration you select
Verdict: Choose the FOGATTI if you want a stated flow rate and useful replacement-size guidance, but verify the door option and installation fit before ordering.
How to Choose a Tankless Water Heater for a Camper
Measure the cutout, door, and installation space
Start with your existing heater’s opening, exterior door, and available depth. A door that looks close in size does not prove that the heater body will fit behind it. Compare the manufacturer’s dimensions with your camper, including mounting space and exhaust clearance, and confirm whether a door panel is included or sold separately.
Compare heating capacity with your likely water use
BTU ratings describe burner capacity, but they do not tell the whole story about comfort. The FOGATTI lists a maximum flow rate of 2.9 GPM, while the supplied specifications for the other models do not give a maximum flow figure. Consider how you use hot water—such as showering or washing dishes—and check the full product documentation for flow and temperature performance before deciding.
Check water, propane, and electrical requirements
These models use propane for heating and 12-volt DC power for electrical operation. That means you need to confirm that your camper’s propane setup, wiring, fuse, and water connections meet the heater’s requirements. Pay close attention to connector sizes and any stated minimum water flow or propane pressure. If you are unsure about gas or electrical work, have a qualified RV technician handle the installation.
Decide whether an outdoor outlet is useful
Some models here include a separate outdoor water outlet, which can be handy for washing pets or gear outside the living space. If you only need hot water at the indoor fixtures, that feature may matter less than getting the right fit or control style. Check how the external connection is positioned and whether it suits your intended use.
Consider controls and temperature range
Controls vary by model. The VEVOR lists an LED touch display, the CAMMOO has a wired controller, and the Poukaran, ORBEK, and FOGATTI list remote or remote-style controls. The Poukaran and ORBEK specify a 95°F to 123°F range. If a specific control type or temperature range matters to you, confirm the details for the exact model configuration.
Look at altitude, cold-weather features, and safety
If you travel to high elevations or camp in cold conditions, check what the manufacturer says about altitude modes and freeze protection. The ORBEK and FOGATTI list high-altitude capability up to 9,800 feet; the other product descriptions do not give a specific altitude figure. Look for clearly stated protections, certification, exhaust requirements, and installation instructions, and follow the manual for winterizing and safe operation.
Plan the installation realistically
“Easy installation” does not eliminate the need to verify measurements, seal the exterior properly, and connect propane, water, exhaust, and 12-volt wiring correctly. Review the installation manual before buying and check whether required doors, hardware, valves, or adapters are included. A professional installation can be a safer choice if you are replacing a different heater type or modifying the RV opening.
Frequently Asked Questions
Do tankless camper water heaters need electricity?
The five models in this guide use propane for heating and 12-volt DC power for electrical operation. Check each product’s power requirements and your camper’s wiring before purchase.
Can a tankless heater provide hot water continuously?
These heaters warm water as it flows rather than storing a tank of heated water. The usable flow and temperature depend on the model and operating conditions, so check the manufacturer’s flow specifications and don’t assume unlimited hot water at every flow rate.
Will any of these heaters fit my camper?
Not necessarily. Door size, cutout size, heater depth, connections, and exhaust dimensions can differ. Measure your existing installation and compare it with the specific model’s full dimensions before ordering.
Which model has the highest stated BTU rating?
The Poukaran and CAMMOO are both listed at 65,000 BTU. The ORBEK is listed at 60,000 BTU, the FOGATTI at 55,000 BTU, and the VEVOR at 42,000 BTU.
Which options include an outdoor water outlet?
The Poukaran, VEVOR, and CAMMOO descriptions specify an external or outdoor water outlet. Check the selected configuration and installation instructions to confirm how that outlet is positioned and connected.
Is a tankless heater a direct replacement for a tank-style RV heater?
It can be a replacement in some setups, but compatibility depends on the RV opening, door, connections, and required modifications. FOGATTI provides guidance for certain tank sizes, but you should verify the measurements for your own installation rather than relying on a general compatibility statement.
Final Recommendation
For a camper that needs dual water access and a high stated burner capacity, the Poukaran is a strong option if its 13 × 13-inch opening and 18 × 15-inch door suit your installation. The ORBEK stands out for its built-in pressure-reducing valve and multiple available door-panel sizes, while the FOGATTI provides a stated flow rate and useful fit guidance. Before choosing any model, confirm the dimensions, connections, power needs, and installation requirements for your specific RV.
