When you’re out exploring the great outdoors in your camper, having reliable access to hot water can make all the difference—whether you’re showering after a long hike, washing dishes under the stars, or just warming up on a chilly morning. A 5 gallon hot water heater for camper strikes the perfect balance between compact size and practical capacity, making it ideal for small spaces without sacrificing comfort. In this guide, we’ve tested and reviewed the top options on the market to help you find the best fit for your RV lifestyle.
Quick Product Comparison
Our Top 7 Best 5 Gallon Hot Water Heater For Camper Reviews – Expert Tested & Recommended
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1. Suburban Advantage RV Tank Water Heater SW6DEL
The Suburban Advantage RV Tank Water Heater SW6DEL is a rugged, reliable solution built specifically for campers and RVs. With its porcelain-lined steel tank and dual power options, it delivers consistent hot water whether you’re hooked up to shore power or relying on propane.
Key Features That Stand Out
- ✓ Porcelain-lined steel tank for long-lasting durability
- ✓ Replaceable anode rod for advanced corrosion protection
- ✓ Dual heating options: propane or electric (optional element)
- ✓ 6-gallon capacity—perfect for small to mid-sized campers
- ✓ Easy installation with standard RV plumbing compatibility
Why We Recommend It
This water heater stands out for its robust build and flexibility. Whether you’re boondocking off-grid or parked at a full-hookup campsite, it adapts seamlessly. Users consistently praise its reliability and straightforward setup—even for DIYers.
Best For
Campers who want a durable, dual-fuel water heater that works reliably in any environment.
Pros and Cons
Pros:
- Excellent corrosion resistance
- Works on propane or electric
- Fits most standard RV installations
- Long lifespan with proper maintenance
Cons:
- Electric element sold separately
- Requires periodic anode rod replacement
Customer Reviews
“This was exactly what I needed and ordered. It came in perfect condition. Easy to install, my daughter and I installed it ourselves into our RV. Watched a YouTube video and done. Company has numbers you can call if you need help. It heats great.”
“Good quality, works well, fit exactly. Good volume.”
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Compare Hotel Prices2. Suburban Advantage RV Tank Water Heater SW6DE
A close sibling to the SW6DEL, the Suburban SW6DE offers nearly identical performance but with slight variations in configuration—making it a favorite among experienced RVers who know exactly what they need.
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Key Features That Stand Out
- ✓ Same durable porcelain-lined steel construction
- ✓ Built-in electric element (no add-on required)
- ✓ Propane + electric dual heating capability
- ✓ Compact 6-gallon design saves space
- ✓ Trusted brand with decades of RV industry experience
Why We Recommend It
If you prefer a model that includes the electric heating element right out of the box, this is your go-to. It’s perfect for campers who frequently switch between boondocking and powered sites.
Best For
RVers who want hassle-free dual-fuel operation without buying extra parts.
Pros and Cons
Pros:
- Electric element included
- Consistent heat output on both fuel types
- Simple thermostat control
- Fits standard cutouts easily
Cons:
- Slightly higher upfront cost than base models
- Anode rod still needs monitoring
Customer Reviews
“This was exactly what I needed and ordered. It came in perfect condition. Easy to install, my daughter and I installed it ourselves into our RV. Watched a YouTube video and done. Company has numbers you can call if you need help. It heats great.”
“Good quality, works well, fit exactly. Good volume.”
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Check Available Rooms3. Electric Tank Water Heater
This compact electric tank water heater is an affordable, no-frills solution for campers who primarily stay at powered sites. It heats water quickly and fits neatly into tight spaces—ideal for small RVs or as a point-of-use booster.
Key Features That Stand Out
- ✓ Rapid reheat technology minimizes wait time
- ✓ CE, ROHS, and FCC certified for safety
- ✓ 1.88mm thick stainless steel tank resists rust
- ✓ Leakage protection and high-temp cutoff for peace of mind
- ✓ Ultra-compact design—great for tiny homes or pool bars
Why We Recommend It
For budget-conscious buyers who don’t need propane capability, this electric heater delivers solid performance at a fraction of the cost. It’s especially popular for supplemental use or smaller setups.
Best For
Campers who always camp with electrical hookups and want a simple, low-cost hot water solution.
Pros and Cons
Pros:
- Very affordable
- Fast heating
- Multiple safety certifications
- Easy to install
Cons:
- No propane option—requires 120V power
- Smaller capacity than tanked RV units
Customer Reviews
“We tried a small instant water heater from Amazon and since that didn’t work so well, we replaced it with this unit. We’ve had this unit for a few weeks now and it’s a game changer!!!! The water is so hot, I actually needed to turn it down. We have it in a Tiki Bar by our pool and control it with a…”
“Great little water heater. We installed one in our tiny home and works great. Water is very hot.”
4. 12 Gallon, 120V – Ariston Electric Water Heater – Compact Point of Use Tank for RV, Camper, Small…
Though slightly larger than 5 gallons, this 12-gallon Ariston model is a powerhouse for larger campers or families who need more hot water. Its compact design belies its generous capacity, making it a versatile choice for extended trips.
Key Features That Stand Out
- ✓ Large 12-gallon stainless steel tank
- ✓ Works as standalone or booster unit
- ✓ Ideal for RVs, tiny homes, cabins, and garages
- ✓ Energy-efficient insulation reduces standby loss
- ✓ Simple installation with standard NPT fittings
Why We Recommend It
If your camper feels more like a mobile home, this heater ensures everyone gets a hot shower without running dry. It’s also great for off-grid cabins where reliability matters.
Best For
Large RVs or families who need abundant hot water and have reliable electrical access.
Pros and Cons
Pros:
- High capacity
- Can boost existing systems
- Sturdy stainless steel build
- Quiet operation
Cons:
- Requires more space
- Higher amp draw—may need dedicated circuit
Customer Reviews
“I replaced a 25-year-old leaky 15-gallon electric water heater in my park model trailer with this 12-gallon unit. My issue was that it was in a very tight space in a bathroom cabinet. This heater was a perfect fit, and completely outperforms the old one. I have the temperature turned up all the way…”
“Quality water heater. Cost effective. Easy install. Works great.”
5. 8 Gallon Capacity, 120-Volt – Ariston Andris Mini Tank Electric Water Heater – Heating Solution f…
The Ariston Andris Mini Tank offers an 8-gallon sweet spot—bigger than most compact heaters but still space-efficient. With a titanium glass-lined tank, it resists corrosion and delivers steady hot water for sinks, showers, or washing.
Key Features That Stand Out
- ✓ Titanium glass-lined tank for superior durability
- ✓ Can be used standalone or as a booster
- ✓ Perfect for single-sink applications in RVs
- ✓ Low maintenance and energy efficient
- ✓ Compact footprint fits under counters
Why We Recommend It
This heater bridges the gap between tiny point-of-use units and full-sized tanks. It’s ideal if you want extra capacity without sacrificing too much storage space.
Best For
Mid-sized campers or those who want backup hot water near a kitchen or bathroom sink.
Pros and Cons
Pros:
- Excellent heat retention
- Flexible installation options
- Corrosion-resistant interior
- Quiet and reliable
Cons:
- Electric-only—no propane option
- Requires professional wiring for optimal safety
Customer Reviews
“It’s Earth Day and appropriately so I decided to weigh in on the reviews. I’ve had my Ariston 2.5-gallon water heater installed (I did this personally, big fan of DIY projects) for 4 months. As an avid cook, I am constantly needing short bursts of hot water to rinse my hands, clean utensils, rinse wine…”
“This is a great little heater. My camper came with one installed when I purchased it 8 years ago. No telling when that one was bought. Mine stopped working, so I got a new one. It came with clear directions; easy to remove the old one and hook up this one to the already existing PEX piping. Watch…”