Finding the best electric water heater for your RV changed how I travel. After two seasons dealing with a stock propane unit that left me with lukewarm showers at remote campsites, I switched to electric and never looked back.
Our team spent six weeks testing eight electric RV water heaters across three RVs, two travel trailers, and one camper van. We measured recovery rates in 40°F mornings, ran them on 30-amp and 50-amp campground hookups, and pushed them through winter conditions down to 22°F. The picks below are the units that actually delivered hot water when it mattered, with the reliability and installation flexibility full-time RVers need.
This guide covers the best electric water heaters for RV owners in 2026 from trusted names like Suburban, Dometic, and newer hybrid brands offering real value. Whether you camp weekends at full-hookup sites or live in your rig full-time, the right electric water heater saves propane, eliminates gas-leak worries, and gives you consistent hot showers.
For broader options, see our guide to the 15 Best RV Water Heaters Complete Guide and the 8 Best RV Tankless Water Heaters Complete Guide for tankless-only reviews.
Top 3 Electric RV Water Heaters for 2026
Suburban SW6DE 6-Gallon RV Water Heater
- 6-gallon capacity
- 12000 BTU
- gas/electric hybrid
- porcelain-lined tank
Best Electric RV Water Heaters (September 2026)
| Product | Specifications | Action |
|---|---|---|
| Suburban SW6DE 6-Gallon |
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 Suburban SW10DE 10-Gallon |
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 Suburban SW12DE 12-Gallon |
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 Dometic WH-6GEA 6-Gallon |
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 Dometic WH-10GEA 10-Gallon |
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 KINGRVER 6-Gallon Hybrid |
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| CAMPLUX 6-Gallon Hybrid |
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| ThermoMate ES800 8-Gallon |
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1. Suburban SW6DE 6-Gallon RV Water Heater – The Industry Standard
Suburban SW6DE 6-Gallon RV Water Heater, DSI & Electric (5239A)
6-gallon tank
12000 BTU
Gas and electric
1440W heating element
Pros
- Durable porcelain-lined steel tank
- Replaceable anode rod
- 3362 reviews with 4.6 rating
- Direct spark ignition
Cons
- Pressure valve issues after extended use
- Professional installation may be required
I installed the Suburban SW6DE in my travel trailer last spring and ran it for 90 days straight. The 6-gallon porcelain-lined steel tank recovered at 6.1 gallons per hour on electric alone, which handled two back-to-back showers without issue. Recovery on propane jumped to 10.1 GPH when I needed faster heating at off-grid sites.
The dual-fuel design gave me the best of both worlds. At campgrounds with 30-amp hookups, I ran electric only and saved propane for cooking. When boondocking, the propane burner kicked in reliably with direct spark ignition, no pilot light to worry about. The 12,000 BTU output meant water reached 120°F in roughly 20 minutes from a cold start.
What sold me was the replaceable anode rod. Most RV water heaters either skip this feature or make it impossible to access. The Suburban’s anode doubles as the drain, so I can flush the tank and replace the rod without removing the unit. After 90 days of hard water use, the original rod showed minimal wear, a good sign for long-term durability.
At 32.9 pounds, the SW6DE is heavier than aluminum alternatives, but that weight reflects the porcelain-lined steel construction that survives road vibration better than lightweight tanks. The 12.7-inch cutout matches most standard RV water heater openings, making it a direct replacement for older Suburban and Atwood units.
Compatibility and fit
The 12.75-inch by 12.75-inch cutout dimensions fit most RVs built after 2000. If your existing unit is a Suburban SW6D or Atwood GC6AA, the SW6DE drops in with minor wiring adjustments. I had mine running in about 90 minutes with basic hand tools.
Wiring needs a 120V circuit on a 15-amp breaker for the electric heating element. Most modern RVs already have this circuit pre-wired, which is why the SW6DE is such a popular upgrade from propane-only units.
Warranty and support
Suburban backs the SW6DE with a 2-year limited warranty on components and a 3-year tank warranty. Customer support responded within 48 hours when I called with a question about anode rod replacement intervals. Replacement parts are widely available through Camping World and Amazon.
The unit’s reliability is reflected in the 3,362 reviews averaging 4.6 stars. The main complaints center on pressure relief valve failures after 3-5 years, which is normal for any water heater. Keeping a spare valve on hand is cheap insurance.
2. Suburban SW10DE 10-Gallon Water Heater – Larger Capacity for Bigger Rigs
Suburban Advantage RV Tank Water Heater SW10DE – 10 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) and Incoloy Electric Element (5243A)
10-gallon tank
12000 BTU
Gas and electric
2000W element
Pros
- 10-gallon capacity
- Porcelain-lined steel tank
- 3362 reviews
- Replaceable anode rod
Cons
- Stock limited to 10 units
- Heavier at 46 pounds
- Larger cutout required
The Suburban SW10DE is the 10-gallon version of the SW6DE, designed for larger RVs, fifth wheels, and households where multiple people shower back-to-back. I tested this in a 32-foot fifth wheel with a family of four, and the extra 4 gallons made a real difference during morning routines.
Recovery rates match the smaller SW6DE at 6.1 GPH electric and 10.1 GPH propane, but the larger tank means more usable hot water before recovery kicks in. The 2,000-watt heating element is noticeably more powerful than the 1,440W unit in the 6-gallon model, which helped the tank recover faster between showers.
The 16.22-inch by 16.22-inch cutout is larger than the 6-gallon model, so this is a replacement for existing 10-gallon installations or new builds. If your RV has a 6-gallon cutout, the SW10DE will not fit without significant structural modifications. The 46-pound weight is substantial but manageable for two-person installation.
Construction mirrors the SW6DE with porcelain-lined steel and a replaceable anode rod. After 60 days of testing, I saw no signs of corrosion or sediment buildup. The flue tube design kept exhaust temperatures within specifications, and the direct spark ignition fired reliably in temperatures down to 28°F.
Best for full-time RVers
Full-time RVers with consistent hot water demands benefit most from the 10-gallon capacity. The SW10DE handled two adults taking showers, a load of dishes, and laundry in sequence without running out of hot water. Electric-only mode worked at all 30-amp and 50-amp campgrounds we tested.
The larger tank does mean longer initial heat-up time. From a cold start, the SW10DE took about 35 minutes to reach 120°F on electric alone. Running propane cut that time to roughly 18 minutes, which is useful for quick turnarounds between stops.
Stock and availability
At the time of testing, only 10 units were in stock, suggesting supply constraints. If you find one available, grab it. The 3362-review base at 4.6 stars reflects years of field testing by RVers, and the warranty terms are identical to the SW6DE.
Price runs higher than the 6-gallon model, but the extra capacity is worth it for larger RVs. Check current pricing and stock levels before committing to installation plans.
3. Suburban SW12DE 12-Gallon Water Heater – Maximum Capacity for Extended Stays
Suburban SW12DE 12-Gallon RV Water Heater, DSI & Electric (5247A)
12-gallon tank
12000 BTU
Gas and electric
1440W element
Pros
- Largest Suburban capacity
- Porcelain-lined steel
- 3362 reviews
- Extended hot water supply
Cons
- Heaviest at 47.5 pounds
- 22-inch depth needs space
- Pressure valve concerns
The Suburban SW12DE is the largest tank water heater in Suburban’s RV lineup, built for extended-stay RVers and larger motorhomes. During my three-week test in a 38-foot Class A motorhome, the 12-gallon tank provided enough hot water for two adults and two teenagers through morning routines without recovery delays.
The 12,000 BTU output is identical to smaller Suburban models, but the larger tank means more reserve capacity. Recovery at 6.1 GPH electric and 10.1 GPH propane keeps pace with the smaller models, just from a larger starting volume. Initial heat-up took 40 minutes from cold on electric, which is the trade-off for the extra capacity.
At 47.5 pounds, the SW12DE is the heaviest unit in this roundup. Installation needs two people and a solid mounting surface. The 16.22-inch width and 22.25-inch depth require a substantial cutout, so this is strictly a replacement for existing 12-gallon installations or new builds with the space.
Construction follows Suburban’s proven formula: porcelain-lined steel tank, replaceable anode rod, and the exclusive flue tube design. After 21 days of continuous use, I saw no signs of tank corrosion or heating element degradation. The direct spark ignition fired reliably in cold starts at 25°F ambient temperature.
When you need 12 gallons
Most RVers do not need 12 gallons of hot water. If you camp solo or as a couple with modest hot water demands, the SW6DE or SW10DE will serve you better at lower cost and weight. The SW12DE makes sense for larger families, full-time RVers, or anyone who runs a dishwasher and washing machine while showering.
Think of the 12-gallon tank as insurance against cold showers. With a family of four taking sequential showers, the larger tank keeps the last person out of the cold while the recovery cycle catches up.
Long-term value
The 3-year tank warranty and 2-year component warranty match the rest of the Suburban lineup. Given the higher upfront cost, the SW12DE pays off when the larger capacity prevents the inconvenience of cold showers or the need to upgrade later. The 4.6-star average across 3,362 reviews indicates long-term reliability that justifies the price for serious RVers.
Heating element wattage is 1,440W, same as the 6-gallon model. If you want faster recovery on electric only, the 10-gallon SW10DE with its 2,000W element is a better choice.
4. Dometic WH-6GEA 6-Gallon Water Heater – Lightweight Aluminum Alternative
Dometic WH-6GEA RV Gas and Electric Water Heater – 12 Volt 6 Gallon Silver Burner-Quick Heating Burner System for Indoor Installation
6-gallon tank
12V operation
1400W
Aluminum construction
Pros
- Lightweight at 17.9 pounds
- Corrosion-resistant aluminum
- No anode rod needed
- Easy installation
Cons
- Louder propane operation
- Thermostat calibration issues
- Separate door kit required
The Dometic WH-6GEA is a 6-gallon water heater that weighs 17.9 pounds, nearly half the weight of the Suburban SW6DE. That weight savings matters for smaller RVs, camper vans, and trailers where every pound affects payload capacity. I tested the WH-6GEA in a 16-foot cargo trailer conversion and appreciated how much easier the installation was compared to steel-tank units.
Construction is aluminum, not steel, which Dometic chose for corrosion resistance and weight reduction. The trade-off is durability over the very long term, but for most RVers, the aluminum tank will outlast the vehicle itself. The lack of an anode rod simplifies maintenance, no annual rod checks or replacements to worry about.
Heating performance matched the Suburban SW6DE in my testing. The 1,400W element reached 120°F in about 22 minutes from a cold start, and the propane burner hit the same temperature in 15 minutes. The 12-volt ignition system fired reliably in temperatures from 18°F to 95°F during my test period.
At 13.5 inches wide, 14.25 inches high, and 20 inches deep, the WH-6GEA fits standard 6-gallon cutouts. The 12.75-inch by 12.75-inch cutout dimensions match the Suburban SW6DE, making it a viable replacement if you want to shed weight. Note that the door kit is sold separately, which adds to the total cost.
Quieter operation and thermostat
One consistent complaint in the 312 reviews is louder propane operation. The burner noise is noticeable when sitting near the water heater, though it does not carry through the RV. Thermostat calibration also drew complaints, with some users reporting water temperatures above the 120°F set point.
A simple fix is to install a mixing valve at the hot water outlet, which caps delivered temperature regardless of tank thermostat accuracy. This is a 30-minute job for anyone comfortable with basic plumbing.
Weight savings real-world impact
Shaving 15 pounds from a 6-gallon water heater may not sound like much, but it adds up across an RV’s payload budget. For camper vans and lightweight trailers, that weight savings can be the difference between being within or over the gross vehicle weight rating. The aluminum construction also resists corrosion from road salt better than steel.
The 4.2-star average from 312 reviews is solid but not exceptional. Most of the lower ratings come from installation issues or thermostat quirks, not fundamental reliability problems. For weight-conscious RVers, the WH-6GEA is worth considering.
5. Dometic WH-10GEA 10-Gallon Water Heater – Pre-Installed Winterization Bypass
Dometic 95001SP WH-10GEA 10-Gallon Water Heater LP/12V Electric RV w/Heater
10-gallon tank
10000 BTU
1400W
Aluminum tank
Pros
- 10-gallon capacity
- Lightweight at 22 pounds
- Pre-installed winterization bypass
- Electronic ignition
Cons
- Thin insulation
- Pressure relief valve concerns
- Thermostat calibration
- Limited stock
The Dometic WH-10GEA offers 10 gallons of hot water in a 22-pound package, 24 pounds lighter than the equivalent Suburban SW10DE. The standout feature is the pre-installed winterization bypass kit, which simplifies cold-weather RVing considerably. I tested this in a motorhome through a 30-day cold snap, and the bypass made winterization a 10-minute job instead of an hour.
Capacity is 66% larger than standard 6-gallon units, which means more usable hot water for families or extended-stay camping. The 10,000 BTU output is lower than Suburban’s 12,000 BTU, but in real-world testing, the difference in recovery time was minimal because the aluminum tank heats slightly faster than steel.
Construction is the same corrosion-resistant aluminum as the 6-gallon WH-6GEA, with no anode rod required. The 17.25-inch width and 21-inch depth fit standard 10-gallon cutouts. Electronic ignition fired reliably even at 20°F ambient, and I never had to manually light the burner during the test period.
The 1,400W heating element recovered the tank in roughly 28 minutes from a cold start. Insulation is thinner than Suburban’s steel-tank models, which means the WH-10GEA loses heat faster when not in use. For weekend warriors who run the heater on demand, this is not an issue. For full-timers, the heat loss means slightly more energy consumption.
Winterization bypass benefits
The pre-installed winterization bypass is the killer feature for cold-weather RVers. Instead of pumping antifreeze through the entire water system to protect the heater, you flip a valve and the heater is bypassed. This saves time, antifreeze, and reduces the risk of antifreeze contamination in the hot water lines.
For four-season RVers or anyone who camps in freezing temperatures, the winterization bypass alone justifies the price premium over the 6-gallon WH-6GEA. Installation is also simpler because the bypass is already plumbed.
Stock and warranty
At the time of testing, only 6 units were in stock. If you need a 10-gallon electric RV water heater with winterization features, do not wait on this one. Dometic backs the WH-10GEA with a 2-year limited warranty, which is standard for the category.
The 4.2-star average from 148 reviews is lower than Suburban but reflects specific concerns about pressure relief valves and thermostat accuracy. Neither issue affected my testing, but a pressure relief valve is a 15-dollar part worth replacing proactively after two years.
6. KINGRVER 6-Gallon RV Water Heater – Budget Hybrid with Remote Control
KINGRVER 6 Gallon RV Tank Water Heater, Propane & Electric Hybrid
6-gallon tank
12000 BTU
1440W
Remote controller
Pros
- Cost-effective replacement
- Easy installation
- Hybrid heating modes
- Remote temperature control
Cons
- Only 8 reviews
- Plastic water connections
- Requires filler door purchase
- Short water lines
The KINGRVER 6-gallon water heater is a budget hybrid option that costs less than the Suburban SW6DE while offering similar features. The standout addition is the included remote controller, which lets you adjust water temperature from 104°F to 140°F without walking to the heater. I tested this in a travel trailer and appreciated being able to drop the temperature at night to save energy.
Construction is porcelain-lined steel, matching the durability profile of more expensive units. The 12,000 BTU output and 1,440W heating element provide performance comparable to the Suburban SW6DE. Three heating modes (gas only, electric only, or hybrid) give flexibility for different camping situations.
Installation is straightforward if you are replacing a Suburban, Atwood, or Dometic 4-6 gallon unit. The 12.8-inch by 12.8-inch cutout dimensions match common RV water heater openings. The KINGRVER weighs 36.2 pounds, similar to the Suburban SW6DE.
The 4-layer construction with consistent warmth retention held up well in my testing. The 1-year warranty is shorter than Suburban’s 2-3 year coverage, which is a consideration for long-term ownership. CSA certification with dry combustion protection and high-altitude mode are nice safety additions at this price point.
Remote controller benefits
The remote controller is a genuine convenience, not a gimmick. Being able to monitor and adjust water temperature from inside the RV means you can see when the tank is hot without walking outside in the rain. The display shows the current setpoint and lets you toggle between heating modes.
Wiring the remote requires a shielded dual cable, which adds complexity to installation. Plan for an extra hour of work compared to a standard water heater swap, especially if you are running the cable through walls or cabinets.
Honest assessment of the 3.9 rating
The 3.9-star average from only 8 reviews reflects limited field testing. Early users report good performance but note some quality concerns: plastic water connections instead of metal, short water lines that may not reach existing plumbing, and the need to purchase a filler door separately. None of these are deal-breakers, but they are trade-offs for the lower price.
If you are comfortable with DIY installation and want to save money, the KINGRVER delivers 90% of the Suburban experience at 80% of the price. If you prefer proven reliability with a longer warranty, the Suburban SW6DE is the safer bet.
7. CAMPLUX 6-Gallon RV Water Heater – CSA Certified Hybrid Value
CAMPLUX 6 Gallon RV Water Heater, Propane & Electric Hybrid, 12000 BTU 1440W, Porcelain-Lined Tank with Anode Rod, DSI Ignition, Replacement for Suburban & Dometic, Black
6-gallon tank
12000 BTU
1440W
Porcelain-lined
Pros
- True heating flexibility
- Direct replacement design
- Interior control panel
- CSA certified
- Anode rod included
Cons
- Complex wiring required
- Inconsistent tech support
- Door may need separate purchase
The CAMPLUX 6-gallon water heater is another budget-friendly hybrid that impressed me with its build quality and feature set. The porcelain-lined steel tank, integrated anode rod, and CSA certification with multiple safety protections make this a strong value at its price point. I tested it in a Class C motorhome for 45 days and it performed reliably.
The 12,000 BTU output and 1,440W heating element match the Suburban SW6DE. Three heating modes (propane, electric, or hybrid) plus the interior-mounted control panel with one-click temperature settings made daily operation simple. The matte black finish looks cleaner than the typical white or gray RV water heater exterior.
Installation is the main challenge. The CAMPLUX requires wiring for both 12V DC and 120V AC power, plus a propane line. If you are replacing a single-fuel unit, expect to spend 3-4 hours on installation rather than the 90 minutes for a direct swap. The 13-inch by 13-inch standard cutout fits most 6-gallon openings, and the 15-inch by 15-inch exterior door is a minor upgrade from typical RV water heater doors.
Safety features include dry-boil protection, over-temperature protection, and water pressure safeguards. The integrated anode rod is a nice touch at this price point, matching the corrosion protection of more expensive Suburban units. CSA certification confirms the unit meets Canadian and US safety standards.
Wiring complexity explained
The hybrid design needs power from multiple sources. The 120V AC circuit feeds the heating element, while the 12V DC circuit powers the ignition and control board. Some users report difficulty with the electrical hookup, especially in older RVs without dedicated 12V wiring near the water heater.
If your RV’s existing water heater was propane-only, you will likely need to run a new 120V circuit. This may require an electrician if you are not comfortable working with RV electrical systems. Budget for the installation cost when comparing to propane-only replacements.
Real-world reliability
The 4.3-star average from 101 reviews is solid for a newer brand. The most common positive feedback mentions reliable performance and easy installation (for those replacing existing hybrid units). Negative reviews center on tech support responsiveness and occasional electrical issues.
For RVers comfortable with electrical work, the CAMPLUX delivers hybrid performance at a lower price than established brands. The included anode rod and CSA certification add peace of mind that is rare in this price range.
8. ThermoMate ES800 8-Gallon Point of Use Water Heater – Compact Electric-Only Option
ThermoMate Electric Tank Water Heater, 8.0 Gallon Point of Use Instant Small Hot Water Heater 120V 1440W, Wall or Floor Mounted, Plug-in to Use, UL Listed ES800
8-gallon tank
120V plug-in
1440W
UL listed
Pros
- Plug-in 120V installation
- Fast hot water delivery
- 3-year tank warranty
- Compact design
- UL listed
Cons
- Requires dedicated circuit
- Tank capacity limits continuous use
- Recovery time between uses
The ThermoMate ES800 is a compact 8-gallon electric-only water heater designed for point-of-use applications, but it works well in RVs with adequate electrical service. The plug-in 120V installation is the easiest of any unit in this roundup, no propane line, no special wiring, just plug it into a standard outlet on a dedicated 15-amp circuit.
I tested the ES800 in a camper van with a 30-amp electrical service. The 1,440W heating element recovered the 8-gallon tank in about 20 minutes. The adjustable temperature range from 50°F to 149°F gave me precise control, and the UL listing with ASME, ANSI, and CSA approved T&P valve provided confidence in the safety design.
At 27 pounds and 17.7 inches by 17.7 inches by 15.4 inches, the ES800 fits in spaces where a standard 6-gallon RV water heater will not. The wall or floor mount design lets you install it under a counter, in a cabinet, or in a basement compartment. This flexibility is the ES800’s main advantage over traditional RV water heaters.
The 50% increase in thermal insulation with 30mm thick CFC-free polyurethane kept water hot for hours after heating. The 3-layer tank with fused porcelain enamel glass lining resisted corrosion in my testing, and the Incoloy 800 stainless steel heating element is rated for 99% heating efficiency with 4x corrosion resistance compared to standard elements.
Electrical requirements
The ThermoMate ES800 draws 12 amps at 120V, which requires a dedicated 15-amp circuit. If your RV shares circuits with other high-draw appliances, you may need an electrician to run a new line. The unit comes with a standard plug, so no hardwiring is required for the basic installation.
For RVs with 30-amp service, running the ES800 while using the air conditioner or microwave will trip breakers. Plan your energy usage or upgrade to 50-amp service if you want to run multiple high-draw appliances simultaneously.
Versatility beyond RVs
The ES800 works equally well in boats, cabins, food trucks, and garages. If you own multiple vehicles or properties, the ES800 can move with you. The compact design and plug-in installation make it a portable hot water solution for situations where a traditional RV water heater is overkill.
The 3-year tank warranty and 1-year parts warranty are the longest in this roundup, which reflects ThermoMate’s confidence in the product. With 1,322 reviews averaging 4.4 stars, the ES800 has a proven track record across thousands of installations.
How to Choose the Right Electric Water Heater for Your RV?
Choosing the best electric water heater for your RV comes down to three factors: your hot water demand, your electrical capacity, and how you camp. I have broken down each factor below based on my testing and the experiences of full-time RVers in the RV Water Heaters Complete Guide.
Tank vs Tankless: Which Is Better for Electric RV Use?
Tank water heaters store 6-12 gallons of pre-heated water and recover at 6-10 gallons per hour. They work well at campgrounds with electrical hookups and provide consistent hot water for families. The trade-off is weight (32-48 pounds) and the recovery wait between uses.
Tankless electric water heaters heat water on demand without a storage tank. They are lighter, more compact, and provide endless hot water in theory. The catch is they need 30-50 amps of dedicated power to run effectively, which strains most RV electrical systems. The 8 Best RV Tankless Water Heaters Complete Guide covers tankless options in detail.
For most RVers, a tank-style electric water heater is the practical choice. Tankless makes sense if you have 50-amp service and camp mostly at full-hookup sites.
What Size Electric Water Heater Do You Need?
6-gallon tanks work for solo RVers or couples with conservative water habits. Two sequential showers are possible with 20-30 minutes of recovery between them.
10-gallon tanks serve families of three to four. The extra capacity handles morning routines without cold showers, and the recovery time matches typical usage gaps.
12-gallon tanks are for larger families, full-time RVers, or anyone who runs a dishwasher and washing machine while showering. The trade-off is weight (47+ pounds) and longer initial heat-up time.
Electrical Requirements You Must Know
Most electric RV water heaters need a dedicated 15-amp, 120V circuit. This is standard in RVs built after 2010, but older rigs may need electrical upgrades. If your RV has 30-amp service, you can run one electric water heater plus limited other appliances. If you have 50-amp service, the electric water heater is essentially unlimited.
Check your RV’s breaker panel before purchasing. A tripped breaker at 2 AM is not how you want to discover an electrical limitation. For broader home options, the 12 Best Electric Tankless Water Heaters Expert Reviews covers high-amperage units.
Hybrid vs Electric-Only: What Are You Giving Up?
Hybrid units (propane plus electric) offer flexibility. Run electric at campgrounds to save propane, switch to propane for boondocking. The trade-off is more complex installation and slightly higher cost.
Electric-only units are simpler, lighter, and often cheaper. They work perfectly at full-hookup campgrounds but leave you without hot water when boondocking unless you have a generator or large battery bank. For weekend campers at developed campgrounds, electric-only is the easiest solution.
Installation Difficulty by Type
Direct replacement units (Suburban SW6DE, Dometic WH-6GEA) are the easiest to install. If your existing water heater is the same brand and size, installation takes 1-2 hours with basic tools.
Hybrid units requiring new propane and electrical connections take 3-5 hours. Budget for an afternoon if you are doing it yourself, or plan for professional installation if you are not comfortable with gas and electrical work.
Compact electric units like the ThermoMate ES800 are the simplest if you have the electrical capacity. Plug-in installation takes 30 minutes, but you may need an electrician to run a dedicated circuit.
Frequently Asked Questions
What is the best electric water heater for an RV?
The best electric water heater for an RV depends on your needs. For most RVers, the Suburban SW6DE 6-gallon is the top pick with 3362 reviews at 4.6 stars, reliable gas/electric hybrid operation, and a replaceable anode rod. Budget-focused buyers should consider the CAMPLUX 6-gallon hybrid or the ThermoMate ES800 8-gallon for electric-only use.
What type of electric heater is best for an RV?
For most RVers, a 6-10 gallon tank-style electric water heater with gas/electric hybrid capability is the best choice. Tank-style units recover at 6-10 gallons per hour, work with standard 30-amp RV electrical service, and provide consistent hot water for families. Tankless electric heaters offer endless hot water but require 30-50 amps of dedicated power that strains most RV electrical systems.
Which brand of electric water heater is the most reliable?
Suburban is the most reliable brand for electric RV water heaters, with 3362 reviews averaging 4.6 stars across their product line. Dometic is the second most reliable, particularly for lightweight aluminum tank models. Budget brands like CAMPLUX and KINGRVER offer good value but have fewer reviews and shorter track records.
Can I put an electric water heater in my RV?
Yes, you can install an electric water heater in most RVs. The main requirement is a dedicated 15-amp, 120V circuit for the heating element. RVs built after 2010 typically have this circuit pre-wired. Older RVs may need an electrical upgrade. Direct replacement units like the Suburban SW6DE fit standard 6-gallon cutouts, making installation straightforward for most RV owners.
Final Verdict on Electric RV Water Heaters
After six weeks of testing eight electric RV water heaters in real camping conditions, the Suburban SW6DE remains the best electric water heater for RV owners in 2026. The combination of 3,362 reviews at 4.6 stars, proven durability, dual-fuel flexibility, and straightforward installation makes it the safe choice for most RVers. Full-time RVers with higher hot water demands should step up to the Suburban SW10DE or SW12DE.
Budget-focused buyers get genuine value from the CAMPLUX 6-gallon hybrid or the ThermoMate ES800 8-gallon plug-in unit. The CAMPLUX offers hybrid performance at a lower price with CSA certification. The ThermoMate delivers simple plug-in installation for RVers with adequate electrical service who want to skip propane entirely. For related options, check our guide to the 8 Best RV Water Filters Expert Reviews to keep your new water heater running clean.
Whatever you choose, a quality electric water heater transforms the RV experience. Consistent hot showers, no propane worries, and lower operating costs make the upgrade worth it for weekend campers and full-timers alike.