When you’re RVing or camping, access to hot water can make a world of difference to your comfort and convenience. Portable water heaters come in various types, sizes, and fuel sources to suit different setups and needs. We’ve scoured and pored over several options to identify seven standout portable water heaters that can transform your RV experience.
Portable Water Heaters Comparison Table
Here’s a quick comparison of our top 7 portable water heaters:
| Model | Bosch Tronic 3000 T ES8 | Rheem RTEX-24 | Eccotemp L7 | Marey 2.0 GPM | Girard GSWH-2 | Eccotemp i12-LP | CAMPLUX BW211-N1 |
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| Price Range | $200- $600 | $420- $500 | $80 – $100 | $150- $200 | $600 – $800 | $320 – $500 | $120- $160 |
| Weight (lbs) | 17.3 lbs | 17.8 lbs | 18 lbs | 14 lbs | 22 lbs | 29 lbs | 10 lbs |
| Dimensions (inches) | 13.75×13.5×13.75 | 18.25 x17.625 x 3.5 | 19.5 x 13.5 x 6.5 | 11.4 x 17 | 12.5 x 12.5 | 14 x 26 | 4.33 x 20.28 |
| Fuel Type | Electric | Electric | Liquid Propane | Liquid Propane | Liquid Propane | Liquid Propane | Liquid Propane |
| Capacity (in Gallons) | 2.5-7 | 5.9 | 1.6 | 5 | 6 | 3 | 1.3 |
| Warranty | 6 years (tank), 2 years (parts) | 5-10 years limited warranty | 1 year | 1 year (parts) | 2 year limited warranty | 2-10 years limited warranty | 1 year |
1. BOSCH Electric Mini-Tank Water Heater: Best Compact Electric Portable Water Heater
Price:
- $200 – $600
Features:
This compact, 7-gallon electric mini-tank heater from Bosch packs a punch. Its space-saving design makes it ideal for point-of-use applications in RVs or small spaces. The glass-lined tank provides excellent thermal retention and corrosion protection, while a tough plastic housing adds durability. A magnesium anode rod offers an extra layer of protection against tank corrosion.
The Tronic 3000 T ES8 can be floor-standing or wall-mounted for flexible installation. It includes a temperature and pressure relief valve, a wired thermostat with a temperature selector and high-temperature safety cut-out, and a red light indicator to show when the unit is powering the heating element. The adjustable temperature range spans from 65°F to 145°F, providing instant hot water right where you need it.
Pros:
- Compact Footprint: The space-saving design is perfect for RVs or tight spaces.
- Flexible Installation: Choose a floor-standing or wall-mounted setup.
- Durable Construction: Glass-lined tank, tough plastic housing, and magnesium anode rod for longevity.
- Adjustable Temperature: Wide 65°F to 145°F range for precise control.
Cons:
- Heavy for its Size: At 29.5 lbs, it’s hefty relative to its compact dimensions.
- Higher Price Point: Costs more than some other point-of-use electric options.
2. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater: Most Powerful Electric Tankless Portable Water Heater
Price:
- $420 – $500
Features:
Rheem’s RTEX-24 is a powerhouse electric tankless heater designed for whole-home use. While not explicitly marketed for RVs, its robust output of 24 kW makes it more than capable of supplying endless hot water to your rig. The unit features robust copper immersion heating elements with brass tops for enhanced durability and easier replacement.
This model is built for straightforward installation and operation. It has a simple digital display for temperature control and self-modulating power control to precisely meet demand. The sleek, wall-mounted design saves space while providing hot water on demand for multiple simultaneous applications like showering, dishwashing, and laundering.
Pros:
- Powerful Performance: 24 kW output supports a strong 5.9 GPM flow rate.
- Durable Components: Robust copper and brass heating elements for longevity.
- Precise Control: Self-modulating power and digital temperature settings.
- Endless Hot Water: Tankless design provides on-demand hot water that never runs out.
Cons
- High Power Needs: Requires 240V/208V electrical service and 3x40A breakers.
- Professional Installation: Hardwired setup may require a professional electrician.
3. Eccotemp L7 Portable Tankless Water Heater: Best Portable Water Heater
Price:
- $80 – $100
Features:
Eccotemp’s L7 is a rugged little propane-powered dynamo that’s purpose-built for off-grid use. Weighing just 13 pounds and requiring no electricity, it’s incredibly portable and perfect for boondocking or dry camping. The unit includes a CSA regulator for connecting to standard 20 lb propane tanks, plus a chrome shower head with an on/off switch and stainless steel hose.
The L7’s unique features make it exceptionally versatile. The battery-powered ignition eliminates the need for electrical hookups, while the ability to work with modified water systems like 12V pumps expands installation options. The included EccoFlo pump and strainer help ensure consistent water pressure and flow, with a maximum output of 1.6 GPM and adjustable temperatures up to 125°F.
Pros:
- Highly Portable: Compact and lightweight at just 13 lbs.
- Electricity-Free: Battery ignition and propane power for off-grid freedom.
- Versatile Setup: Works with 12V pumps and other modified water systems.
- Useful Accessories: Includes a shower head, hose, strainer, and propane regulator.
Cons:
- Modest Capacity: 1.6 GPM and 125°F max temperature limit high-volume or very hot usage.
- Manual Controls: No digital display or controls; relies on manual knobs.
4. Marey GA5PORT Portable Propane Gas Tankless Water Heater: Most Affordable Portable Water Heater Option
Price:
- $150 – $200
Features:
Marey’s 2.0 GPM heater offers solid performance at a budget-friendly price point. This propane-powered unit provides up to 2 gallons per minute of hot water, with the ability to raise incoming water temperature by 45°F at a 1.5 GPM flow rate. It’s a reliable choice for single-fixture applications like an outdoor shower or kitchen sink.
The heater is constructed from durable materials, including stainless steel and copper in key components. The compact, wall-mounted design saves precious square footage in your RV while still providing ample hot water on demand. Automatic ignition and overheat protection ensure safe, straightforward operation.
Pros:
- Budget-Friendly: One of the most affordable propane-powered options.
- Efficient Heating: Achieves a 45°F temperature rise at 1.5 GPM flow rate.
- Durable Build: Stainless steel and copper components for reliability.
- Compact Footprint: Space-saving wall-mounted design.
Cons:
- Single-Fixture Flow Rate: 2 GPM may not support multiple taps simultaneously.
- Bare-Bones Controls: No digital display or advanced control features.
5. GIRARD Tankless RV Water Heater: Top-of-the-Line Portable Water Heater
Price:
- $600 – $800
Features:
Girard’s GSWH-2 is a top-of-the-line propane tankless heater engineered specifically for RVs. With a robust 42,000 BTU burner, it delivers a powerful stream of hot water while still maintaining a relatively compact form factor. The unit is designed for seamless integration with your RV’s water system and can be installed with an indoor-mounted switch for convenient control.
The GSWH-2 showcases Girard’s signature build quality and attention to detail. It features cutting-edge electronics and premium components housed in a sleek, easy-access casing. Four door kits are included for straightforward replacement of existing tank heaters, making installation a breeze. Once set up, the GSWH-2 delivers endless hot water for showers, dishes, laundry, and more.
Pros:
- Purpose-Built for RVs: Designed for seamless integration and easy installation.
- Powerful Heating: 42,000 BTU burner delivers strong, steady hot water flow.
- Premium Components: High-end electronics and materials for top performance.
- Endless Hot Water: Tankless design ensures hot water never runs out.
Cons:
- Higher Price Point: One of the pricier RV-specific tankless options.
- Propane Consumption: Higher BTU output may mean quicker propane usage.
6. Eccotemp i12-LP: Best Indoor Tankless Portable Water Heater
Price:
- $320- $500
Features:
Eccotemp’s i12-LP is a high-performing propane tankless heater built for indoor installation. With a maximum output of 80,000 BTUs and a flow rate of 4 GPM, it’s a true workhorse capable of supplying endless hot water to multiple fixtures simultaneously. The unit also boasts a Uniform Energy Factor of 0.79, indicating efficient fuel usage.
The i12-LP is designed for straightforward wall-mounted installation and features a sleek black tempered glass panel with an easy-to-read LED display. It offers a wide temperature range of 90°F to 140°F and includes fully automatic temperature controls. The unit’s advanced electronics include a built-in blower fan for efficient venting, making it an ideal choice for indoor RV setups.
Pros:
- Strong Performance: 80,000 BTU and 4 GPM support multiple fixtures.
- Indoor Installation: Sleek wall-mounted design and built-in venting fan.
- Digital Controls: Easy-to-use LED display and automatic temperature adjustment.
- Efficient Operation: 0.79 UEF for cost-effective propane usage.
Cons:
- Elevation Limitations: Not recommended for use above 5,000 feet.
- Higher Price: Pricier than some other propane tankless options.
7. CAMPLUX Tankless Water Heater: Most Versatile Portable Water Heater Option
Price:
- $120 – $160
Features:
The CAMPLUX BW211 is a rugged portable tankless water heater built for outdoor adventures. A robust stainless steel and copper heat exchanger ensures efficient and durable performance in any condition.
With a flow rate of 1.32 GPM, the BW211 is perfect for off-grid showers, dishwashing, and other hot water needs. The unit features a compact design with folding handles for easy transport and storage. Multiple safety features include overheating protection, anti-freezing, and oxygen depletion sensors. An included showerhead offers various spray settings for versatility.
Pros:
- Rugged Construction: Durable heat exchanger withstands outdoor use.
- Compact with Handles: Easily folds up for transport and storage.
- Comprehensive Safety: Overheating, freezing, and oxygen depletion sensors.
- Included Showerhead: Multiple spray settings for various uses.
Cons:
- Lower Flow Rate: 1.32 GPM may not be enough for some users.
- No Battery Ignition: Requires electrical hookup for ignition.
How We Compared and Chose the Best Portable Water Heaters
To find the best portable water heaters for RVers, we carefully considered the following key factors:
- Heating Method: We looked at both electric and propane-powered heaters to suit different RV setups and preferences. Electric models offer convenience if you typically camp with shore power, while propane heaters allow off-grid flexibility.
- Capacity and Flow Rate: A portable water heater needs to provide enough hot water for your needs, whether it’s for a quick shower or filling a sink. We chose models with flow rates and storage capacities to match common RV use cases.
- Energy Efficiency: An efficient portable water heater will help you save on power or propane costs over time. We prioritized models with features like self-modulating heating elements and well-insulated tanks.
- Size and Portability: RV living quarters are tight, so a portable water heater needs to be compact and easy to move around. We looked for models with space-saving designs and portable-friendly features like carrying handles.
- Ease of Use: A good portable water heater should be simple to set up, adjust, and maintain. We chose models with user-friendly controls, easy-access connections, and straightforward installation requirements.
- Durability: Life on the road can be rough on gear, so we selected portable water heaters that are built to last, with rugged materials like stainless steel, copper, and glass-lined tanks.
- Price: We know RVers have varying budgets, so we included top portable water heater options across a range of price points, from affordable picks to higher-end models with premium features.
Enjoy Hot Water Wherever the Road Takes You
A reliable source of hot water can be a game-changer when you’re living the RV lifestyle. Whether you’re looking to replace your built-in RV water heater, add some extra capacity for longer showers, or enjoy a hot rinse while boondocking off-grid, a portable water heater can help make your RV feel more like home. For more expert tips on getting the most from your RV’s plumbing, check out our guides on how to use your RV water heater and tackling common water heater issues.
