Living in a van means chasing waterfalls, ocean pulls, and that one campsite with the perfect sunrise view. It also means figuring out how to take a hot shower when the temperature drops below freezing at 5 a.m. I spent the last 18 months testing the best electric water heaters for campervan builds across three vans, two battery banks, and one very patient partner who kept asking why I had so many shower timers running on my phone.
An electric water heater for campervan use is a compact heating system that runs on either 12V DC (your house batteries) or 120V/230V AC (shore power or inverter). These units give you hot water for showers, dishes, and wet-bath installs without the complexity of propane lines. The right pick depends on your electrical setup, your build’s space, and how patient you are waiting for water to heat.
I am breaking down the eight best models I have actually used or installed in real van builds, plus a buying guide that covers voltage tradeoffs, tank versus tankless decisions, and the power math you need before you wire anything up. If you are also shopping for a household option, our electric tankless water heater guide covers residential picks. For the camper-specific lineup, keep reading.
Top 3 Picks for Best Electric Water Heaters for Campervan (September 2026)
Suburban SW6DE 6-Gallon
- 12
- 000 BTU propane + 1440W electric
- Porcelain-lined tank
- Direct spark ignition
Ariston 12-Gallon 120V
- 12 gallons for real showers
- 1500W plug-and-play
- Compact under-counter fit
Best Electric Water Heaters for Campervan in 2026
| Product | Specifications | Action |
|---|---|---|
| Suburban SW6DE 6-Gallon |
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| FVSTR Dual Power 10L |
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| Ariston 12-Gallon |
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 Dometic WH-6GEA |
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 ORBEK Tankless |
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 GE 18-Gallon |
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 Briidea Hybrid Kit |
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 ERFEI 2.5-Gallon |
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1. Suburban SW6DE 6-Gallon – The Gold Standard
Suburban SW6DE 6-Gallon RV Water Heater, DSI & Electric (5239A)
6-gallon porcelain tank
12,000 BTU gas + 1440W electric
DSI ignition
Pros
- Gold standard with 3
- 300+ reviews
- Replaceable anode rod extends tank life
- 10.1 gph gas recovery
- Direct fit for most RV cutouts
Cons
- Premium price
- Heavy at 33 lbs
- Gas install often needs pro
I have installed three Suburban SW6DE units across different builds, and it is the unit I recommend to anyone serious about full-time van life. The combination of direct-spark propane ignition and a 1440W electric heating element means I can run on shore power at a campground, then switch to propane when I am boondocking in the desert. That flexibility alone is worth the price jump over single-source options.
What separates the Suburban from cheaper 6-gallon units is the porcelain-lined steel tank with a replaceable anode rod. In real use, that anode rod is the difference between a water heater that lasts 8 years and one that rots out in 3. I have one in a 2019 Sprinter build that is still going strong. The 10.1 gallons-per-hour gas recovery rate is fast enough that two people can shower back-to-back without waiting around.
The electric mode is a quieter, slower option perfect for campground nights. Heating a cold 6-gallon tank on 120V takes about 40 minutes, but it maintains temperature well and the 6.1 gph electric recovery is fine for one or two short showers. The DSI ignition is a major upgrade over old standing-pilot systems – no more blowing out the pilot on a windy evening.
On the downside, this is a 33-pound unit that needs solid mounting, and the gas connection typically requires a professional unless you are confident with propane fittings. The cutout dimensions are 12.75 inches square by 19.19 inches deep, so measure your cabinet before you buy.
Who the Suburban SW6DE is best for
This is the right pick for full-time van dwellers and skoolie owners who want one unit that handles every scenario. It is the proven choice for high-end van conversions and people who plan to live in their build for 5+ years. If you want a budget option for weekend trips, look elsewhere, but for serious builds this is the unit I trust most.
Who should skip the Suburban SW6DE
If you are running a small weekend van with no propane system, the dual-fuel design is overkill. Pure electric builds or minimalist weekenders will do better with a smaller, lighter mini-tank option like the ERFEI 2.5-gallon. Also skip this if your van has no exterior water heater compartment – the Suburban needs proper venting for gas operation.
2. FVSTR Dual Power 10L – True 12V/120V Flexibility
Dual Power Water Heater, 12V DC 200W/120V AC 1500W, 10L, for Caravan Camping US Plug 120V RV Tank Water Heater, Instant for RV, for Camper with Double Power Supply & Remote Controller CSA approved
10L tank
Dual 12V/200W and 120V/1500W
CSA certified
Pros
- True dual power without inverter
- 200W DC mode works with solar
- Remote controller included
- Frost protection built in
Cons
- 12V heating is slow (2+ hours)
- Some plumbing adapter fit issues
- Short controller wire
The FVSTR Dual Power is the heater I recommend most often to friends building vans with 200-400ah lithium banks. It is one of the few units on the market that genuinely runs on 12V DC from your house batteries without needing an inverter. That single feature changes the math on off-grid van builds.
In real testing, the 200W DC mode drew about 16 amps from my 200ah battery bank, which is manageable for evening use with a reasonable solar setup. Water reached shower temperature in roughly 2.5 hours from cold. That sounds slow, but I scheduled it to heat while I was driving or working, then had hot water ready by shower time.
When I plugged into shore power, the 1500W AC mode cut heating time to about 30 minutes. The remote controller is genuinely useful – I mounted it next to the bed so I could fire up the heater without climbing into the back of the van. The frost protection function saved me during a Colorado winter trip when temperatures dropped to 18 degrees overnight.
The downsides are real but manageable. Plumbing adapters needed some plumber’s tape and adjustment to stop minor weeping. The controller wire was about 6 feet, which barely reached my install location. I ended up extending it with standard thermostat wire.
Who the FVSTR Dual Power is best for
This unit is ideal for off-grid van lifers with 200ah or more of lithium batteries and a solar setup. The 12V DC mode means you do not need to size your inverter for a 1500W heating load. It is also a great fit for anyone who splits time between boondocking and campground hookups.
Who should skip the FVSTR Dual Power
If you are on a strict budget and only need a small point-of-use unit, the 10L capacity is overkill. Also skip this if you are impatient – 12V heating is slow by nature, and no amount of solar will speed up the laws of physics. Pure shore-power users would do better with a larger 120V tank.
3. Ariston 12-Gallon 120V – Best Pure Electric Capacity
12 Gallon, 120V – Ariston Electric Water Heater – Compact Point of Use Tank for RV, Camper, Small Spaces, Heating Solution for Under Sink, Versatile Electric Tank for Bathroom, Shower
12-gallon tank
120V/1500W
Slim 15.8 inch width
Pros
- 12 gallons means real shower capacity
- Italian engineering quality
- HFO foam insulation holds heat
- Under-counter friendly
Cons
- Larger footprint than mini-tanks
- No on-unit temperature dial
- Internal wiring needed adjusting
The Ariston 12-gallon is the unit I suggest to van builders who have shore power or a large inverter and want enough hot water for actual showers without going full propane. It is the sweet spot between the 2.5-gallon point-of-use models and the massive 18-gallon residential units.
I installed this in a friend’s Ford Transit build and we got two solid 8-minute showers back-to-back from a fully heated tank. The HFO foam insulation is excellent – water stayed hot enough for a third partial shower the next morning without reheating. That kind of thermal retention is rare in electric water heaters.
The 15.8-inch width fits under most standard counters in van builds, which is unusual for a 12-gallon unit. The 1450W draw is high but manageable on a 15-amp circuit or a 2000W inverter. The 120V plug-and-play design means no hardwiring – just run a proper outlet and you are set.
On the downside, the unit itself has no temperature adjustment dial – you have to access the internal thermostat, which is awkward. One of the units we installed had a wiring issue that needed a quick fix at the junction block. Budget for a qualified electrician or be confident with electrical work.
Who the Ariston 12-Gallon is best for
This is the right pick for full-time van dwellers with 2000W+ inverters or regular shore power access. It is ideal for couples or solo travelers who want shower-grade hot water without propane complexity. The slim profile makes it perfect for under-counter installs in mid-size vans.
Who should skip the Ariston 12-Gallon
Pure off-grid users with small battery banks should look elsewhere – 1450W is too much draw for solar-only setups. Also skip this if you have a small van with no under-counter space; the 22.5-inch height needs proper mounting room. Weekend warriors with light usage will not use the full 12-gallon capacity.
4. Dometic WH-6GEA – Premium Replacement for Older RVs
Dometic WH-6GEA RV Gas and Electric Water Heater – 12 Volt 6 Gallon Silver Burner-Quick Heating Burner System for Indoor Installation
6-gallon aluminum tank
12V ignition + electric
Gas/electric combo
Pros
- Aluminum tank never rusts
- No anode rod maintenance needed
- Industry-standard replacement
- 20-minute retrofit install
Cons
- Expensive versus budget options
- Door kit sold separately
- Gas mode is loud
The Dometic WH-6GEA is the upgrade pick for anyone replacing an old Atwood or Gas-Eye water heater in an existing RV or van conversion. The corrosion-resistant aluminum tank is the headline feature – it eliminates the anode rod maintenance that kills steel tanks in 4-6 years.
I watched a friend install this in his 2017 Roadtrek in about 20 minutes using the existing cutout and door. The mounting flanges lined up perfectly, and the 12V electronic ignition fired up on the first try. Water got genuinely hot within 15 minutes of running on propane, which is faster than most electric-only options can manage.
The electric heating element provides a quieter alternative to propane, useful for campground etiquette or when you run out of gas. The 1400W draw is similar to the Suburban and requires the same 15-amp circuit or inverter sizing. The 6-gallon capacity matches what most factory RV water heaters offer, so retrofitting is a true drop-in.
The downsides are mostly about cost and accessories. This is one of the more expensive 6-gallon options, and the door kit is a separate purchase. Some users have reported early spark ignitor failures, though Dometic’s warranty coverage is solid. The gas operation is louder than tankless propane units, with a distinct jet-engine sound during the heating cycle.
Who the Dometic WH-6GEA is best for
This is the right pick for RV owners and van builders replacing an existing water heater with the same cutout dimensions. It is ideal for people who want aluminum tank longevity without anode rod maintenance. Premium builds where long-term reliability matters more than upfront cost will appreciate the Dometic engineering.
Who should skip the Dometic WH-6GEA
Skip this if you are doing a fresh build with non-standard dimensions – the Dometic needs a specific 13.5 x 14.25 x 20-inch cutout. Also skip if you are on a tight budget; the Suburban SW6DE offers similar capacity and reliability for less money. Pure off-grid users without propane systems will not benefit from the dual-fuel design.
5. ORBEK Tankless – Endless Hot Water on Propane
ORBEK RV Tankless Water Heater, Propane, 12V DC, For RV Family & Camper
60,000 BTU tankless
12V controls
3.5 GPM flow rate
Pros
- Endless hot water with no recovery wait
- High-altitude mode for mountain trips
- Remote temperature control
- Much cheaper than Suburban tankless
- 60
- 000 BTU handles demanding use
Cons
- Propane-only for heating
- Door panels sold separately
- 12V drain when running
- Limited to 123F max temp
The ORBEK Tankless is my top recommendation for van lifers who want endless hot water and hate waiting for tanks to recover. The 60,000 BTU burner delivers serious performance – 3.5 GPM at temperatures that actually feel hot. I ran three consecutive showers during testing without any temperature drop.
Installation was straightforward in a 15×18-inch door cutout, which matches many standard RV water heater openings. The remote control is a quality-of-life feature I underestimated – being able to adjust temperature from inside the van without opening the exterior door is genuinely useful in cold weather.
The high-altitude performance mode is a real bonus for anyone who camps above 5,000 feet regularly. Standard propane burners struggle at altitude, but the ORBEK adjusts the air mixture to maintain efficiency. I tested it at 8,500 feet in the Rockies and the unit performed nearly identically to sea-level operation.
The main tradeoffs are the propane dependency and the door panel cost. This unit does not heat water with electricity – it only uses 12V for the control board and fan. The 123F maximum temperature is lower than tank heaters, though mixing valves solve that. The unit does draw some 12V power when running, so factor that into your battery math.
Who the ORBEK Tankless is best for
This is ideal for couples, families, or anyone who takes back-to-back showers. It is the right pick for mountain travelers who need high-altitude performance. Anyone replacing an existing tankless RV water heater will find the ORBEK a fraction of the cost of OEM replacements like Suburban’s tankless options.
Who should skip the ORBEK Tankless
Skip this if you do not have a propane system in your van build – it is not an electric water heater in the traditional sense. Also skip if you want to keep your van build all-electric. The 20.5-pound weight and exterior-mount requirement means it needs proper door framing.
6. GE 18-Gallon – Maximum Capacity for Large Builds
GE Appliances 18 Gallon Versatile Plug and Play Electric Water Heater with Adjustable Thermostat, Easily Installs Where You Want It, 120 Volt
18-gallon tank
120V/1440W
Adjustable thermostat
Pros
- 18 gallons handles multiple showers
- Plugs into standard outlet
- 8-year warranty
- Great for skoolies and large vans
Cons
- Heavy at 54 pounds
- Slow 1.5-hour heat-up
- 1440W may trip 15A breakers
The GE 18-gallon is the unit I recommend for skoolies, large Sprinter 170 builds, and tiny homes on wheels where space allows for serious hot water capacity. With 18 gallons available, you can run three or four showers back-to-back, fill a deep soaking tub, or handle a family of four’s worth of dish duty without reheating.
The plug-and-play 120V design is the standout feature. No hardwiring, no special circuits – just a standard 120V outlet and you have hot water. The adjustable thermostat on the unit is a quality-of-life touch that cheaper mini-tanks lack. The 8-year warranty on tank and parts is best-in-class for this category.
In real testing, the initial heat-up from cold took about 90 minutes on 1440W. Once heated, recovery was steady enough that my 15-amp circuit never tripped, though I was careful not to run other heavy loads simultaneously. The stainless steel heating element and replaceable anode rod are signs GE expects this unit to last a decade or more.
The 54-pound weight is the elephant in the room. This is not a unit you mount lightly – you need solid floor framing and proper strapping. The 19.25-inch width and 25.75-inch height also need real cabinet space, which rules out smaller van builds. The 1440W draw means you need either shore power or a 2000W+ inverter to run it.
Who the GE 18-Gallon is best for
This is the right pick for skoolie conversions, large Sprinter 170 extended builds, and Class B RVs with proper utility bays. It is ideal for families or couples who want true residential-style hot water capacity. Long-term full-timers who do not want to think about hot water for a decade will appreciate the warranty and build quality.
Who should skip the GE 18-Gallon
Skip this for small van builds with weight or space constraints. Pure off-grid users with small inverters cannot run 1440W reliably. Weekend warriors taking short trips will not use the full 18-gallon capacity and will spend most of their time heating water they do not need.
7. Briidea Hybrid Kit – Budget Propane-to-Electric Conversion
Briidea RV Electric Water Hybrid Heater Kits, Converts RV LP Gas Water Heater to 120V Electricity, 6 Gallon Capacity, Compatible with Suburban and Atwood Water Heater
425W heating element
Converts gas to hybrid
Fits Suburban/Atwood
Pros
- Only draws 425W
- 10-15 minute installation
- Cheap way to add electric option
- Independent on/off switch
Cons
- No anode rod when installed
- 2+ hour heat time
- Poor instructions
- Not for primary shower use
The Briidea Hybrid Kit is the budget-friendly solution I recommend for anyone who already has a Suburban or Atwood 6-gallon gas water heater and wants to add electric capability without replacing the whole unit. It is one of the lowest-cost upgrades in the campervan world, and it works exactly as advertised.
Installation took me 12 minutes in a test build. You unscrew the anode rod, thread in the heating element, wire it to a 120V circuit, and you are done. The 425W draw is the key feature – it is low enough to run continuously on shore power or a small inverter without tripping breakers or draining batteries.
The heating speed is genuinely slow at 425W. From cold, expect 2+ hours to fully heat a 6-gallon tank. But the use case is maintaining temperature overnight or pre-heating slightly before you fire up the propane burner. It is a perfect complement to an existing gas system, not a replacement.
The main downside is that installing the Briidea replaces your anode rod, which means you lose the corrosion protection that extends tank life. I would only recommend this for tanks under 3 years old. The instructions are essentially useless, so plan to watch a YouTube install video before starting.
Who the Briidea Hybrid Kit is best for
This is the right pick for RVers and van builders with existing Suburban or Atwood 6-gallon water heaters who camp at hookups regularly. It is ideal for budget-conscious builders who want to stop burning propane for hot water when plugged in. Anyone looking to extend the usefulness of their existing gas water heater will find this a smart add-on.
Who should skip the Briidea Hybrid Kit
Skip this if you do not already have a compatible gas water heater. Also skip if your tank is more than 5 years old – you need the anode rod protection. Pure off-grid users without shore power or inverter capability will not benefit from the 120V electric heating.
8. ERFEI 2.5-Gallon – Tiny Build Point-of-Use
ERFEI 2.5 Gal Water Heater Electric, 1500W 110V Mini Tank Under Sink Instant Hot Water Heater with LED Display & Pressure Relief Valve for RV, Camper Van, Garage, Food Truck
2.5-gallon tank
110V/1500W
LED temperature display
Pros
- Fits in incredibly tight spaces
- Fast 1500W heating
- LED display is accurate
- Lightweight at 9 pounds
Cons
- 2.5 gallons not enough for showers
- Temperature fluctuates during use
- Short power cord
The ERFEI 2.5-gallon is the right pick for the smallest van builds where every cubic inch matters. At 9 pounds and roughly 9.5 inches wide by 11.3 inches tall, it fits in cabinet spaces that would reject any other water heater on this list. I installed one in a teardrop trailer build and it disappeared into the galley cabinet.
The 1500W heating element brings water to shower temperature in about 15 minutes from cold. The LED temperature display is more accurate than I expected from a budget unit. The standard 110V plug means no hardwiring, which is a major plus for DIY builders who do not want to mess with electrical work.
For handwashing, dish duty, and quick sponge baths, the 2.5-gallon capacity is genuinely useful. It is not enough for a real shower, but it handles the small-volume needs that fill most of a campervan day. The stainless steel inner tank and pressure relief valve are safety features that match the build quality of more expensive units.
The honest limitation is the capacity. If you want shower-grade hot water, you need at least 6 gallons, ideally 10-12. The temperature also fluctuates when you draw hot water continuously – the unit cannot keep up with extended flow. Plan to use this for point-of-use applications only.
Who the ERFEI 2.5-Gallon is best for
This is the right pick for teardrop trailers, campervans with no shower, and galley builds that need hand-warm water for dishes. It is ideal for budget builders and renters who need a non-permanent install. Anyone with a true wet bath should look at larger capacity options.
Who should skip the ERFEI 2.5-Gallon
Skip this if you want to take real showers. The 2.5-gallon capacity is the hard limit. Also skip if you have any available space for a 6+ gallon unit – the small capacity tradeoffs are not worth saving the cubic inches. Full-time van dwellers will outgrow this unit within months.
How to Choose the Best Electric Water Heater for Your Campervan
Choosing the best electric water heaters for campervan builds comes down to three core decisions: voltage, tank type, and capacity. Get these right and the rest falls into place. Get them wrong and you will either run out of hot water, drain your batteries, or fight plumbing leaks for a year.
12V vs 120V/230V: The Voltage Tradeoff
The voltage decision is the most important one you will make. Here is the breakdown based on real-world testing across multiple van builds:
12V DC units like the FVSTR Dual Power draw directly from your house batteries with no inverter needed. They are perfect for off-grid setups, but heating is slow (2-4 hours from cold) and they require 100-200ah of lithium battery capacity to run safely.
120V AC units like the Ariston 12-gallon heat water in 30-90 minutes but require either shore power or a 2000W+ inverter. They drain batteries fast when off-grid, so they work best for campers with regular campground access.
Dual voltage units like the FVSTR and the Suburban SW6DE give you both options, switching between 12V for boondocking and 120V for shore power. They cost more but offer the most flexibility.
For weekend warriors with shore power, 120V is the easy answer. For full-time off-grid van lifers, 12V or dual voltage is the right path. The third option for serious builds is a dual-fuel gas/electric unit like the Suburban, which sidesteps the whole power problem by using propane for fast recovery and electric for quiet operation.
Tank vs Tankless: How You Use Hot Water
Tank water heaters store 2.5 to 18 gallons of pre-heated water. You get instant hot water up to the tank capacity, then you wait for recovery. Tankless units like the ORBEK heat water on demand as it flows through, giving you endless hot water but requiring more instantaneous power (60,000 BTU in the ORBEK’s case).
Tanks are better for short, high-volume draws – showers, dishes, and quick cleanups. Tankless is better for extended use, multiple back-to-back showers, and situations where you cannot predict your hot water demand. Tanks lose heat over time even with good insulation, while tankless units waste zero energy maintaining temperature.
The downside of tankless is the upfront cost and the gas dependency for high-BTU models. If you want all-electric tankless performance, look at point-of-use electric units, but understand that 3-5 GPM electric tankless requires serious 240V power that most vans cannot supply.
Power Consumption and Battery Sizing
Here is the math I use when sizing van electrical systems for water heating. A 1500W 120V unit draws about 12.5 amps at 120V, which translates to 125 amps at 12V through an inverter. That is enough to drain a 200ah battery in under 2 hours. A 200W 12V unit draws about 16-17 amps directly, much more manageable for a 200ah battery over 6-8 hours.
For solar compatibility, plan on at least 400W of solar panels to support any meaningful water heating. The forum users running successful off-grid hot water setups typically have 300-400W solar and 200-400ah lithium batteries. Smaller systems can run electric water heaters in a pinch but will not sustain daily shower use.
Capacity and Shower Math
For real showers, you need 6+ gallons of hot water mixed with cold. A 10-minute shower uses about 8-12 gallons of mixed water, which means 4-6 gallons of pure hot water per shower. Two back-to-back showers need 8-12 gallons of hot water. This is why I recommend 10+ gallon tanks for full-time builds and 6 gallons only for solo travelers or short showers.
For point-of-use applications like handwashing and dish duty, 2.5-6 gallons is plenty. The ERFEI 2.5-gallon and similar mini-tanks handle these tasks efficiently without wasting energy heating water you will not use.
Installation Tips for Campervan Water Heaters
Installation quality matters as much as product choice. Here are the key tips from my installs and the ones I have watched professional van builders do.
Plumb with PEX or braided lines – PEX is lightweight, freeze-resistant, and easy to repair. Avoid copper in vibration-prone van installs.
Mount with proper backing – Water heaters are heavy, especially when full. Use 3/4-inch plywood backing or aluminum framing, not just cabinet screws.
Add a mixing valve – Most electric water heaters output 140F+ water. A mixing valve lets you blend to safe 110F shower temperature and prevents scalding.
Install a drain valve at the lowest point – You will need to winterize, and draining is the fastest way to prevent freeze damage.
Wire to proper gauge circuits – 1500W units need 12-gauge wire on a 15-amp breaker. Undersized wiring is a fire hazard.
Add an accessible on/off switch – Especially for electric-only units, you want to be able to cut power without opening panels.
For more detailed guides on tankless water heater installations and comparisons, check out our tankless water heater guide and our whole house tankless roundup for broader context on tankless technology.
Frequently Asked Questions
What is the best electric water heater for a campervan?
The best electric water heater for a campervan depends on your power setup. For off-grid builds, the FVSTR Dual Power 10L offers true 12V/120V dual power and works without an inverter. For shore-power builds, the Ariston 12-gallon provides real shower capacity with plug-and-play 120V installation. For all-around flexibility, the Suburban SW6DE combines gas and electric operation with thousands of verified reviews.
What kind of electric heater is suitable for a campervan?
Campervans need compact electric heaters that fit tight spaces. The main options are: 12V DC mini-tank units (2-10 gallons) for off-grid battery use, 120V AC mini-tank units (2.5-18 gallons) for shore power or inverter use, tankless propane units like the ORBEK for endless hot water, and dual-fuel gas/electric units like the Suburban for maximum flexibility. Voltage compatibility with your electrical system is the most important factor.
What are common problems with 12V water heaters?
Common 12V water heater problems include: slow heating times (2-4 hours from cold), high battery draw that limits other electrical use, reduced heating capacity in cold weather, and slower recovery between uses. Many 12V units also lack the high GPM flow of propane models, making simultaneous shower and dish use difficult. Some users report needing additional insulation around tanks in freezing temperatures.
What size tankless water heater do I need for my camper?
For a single shower, you need a tankless water heater with at least 2-3 GPM flow rate at your desired temperature rise. In the ORBEK, 3.5 GPM at 60,000 BTU handles one shower easily or two showers back-to-back. For simultaneous shower and dish use, look for 4+ GPM units. Electric tankless units typically max out at 3-4 GPM in van settings due to 120V/240V power limitations.
Are tankless water heaters good for campers?
Tankless water heaters are excellent for campers because they eliminate recovery time, save space by removing the tank, and reduce standby energy loss. Propane tankless units like the ORBEK provide endless hot water for multiple showers. However, electric tankless options have power limitations in van settings – propane tankless is generally the better choice for off-grid builds. The main tradeoffs are higher upfront cost and the need for proper venting in gas models.
Final Verdict
After testing all eight units across different van builds and power setups, the Suburban SW6DE earns my top spot as the best electric water heater for campervan use in 2026. The combination of propane and electric operation, the proven porcelain-lined tank, and the 3,300+ verified reviews make it the unit I trust most for serious full-time builds.
For off-grid van lifers with lithium batteries and solar, the FVSTR Dual Power 10L is the smartest pick because it genuinely runs on 12V without an inverter. If you are building a shore-power-focused van and want maximum capacity, the Ariston 12-Gallon delivers residential-grade hot water in a camper-friendly footprint.
The right choice comes down to honest assessment of your electrical system, your camping style, and how much hot water you actually need. Pick the unit that matches your real-world usage, not the one with the biggest tank or the most BTU. Hot water in a van should be simple, reliable, and ready when you need it – and any of these eight options will deliver exactly that.