The first time I took my family camping in our 32-foot travel trailer, I learned a hard lesson: nothing ends a good trip faster than a freezing cold shower at 6 AM. After that weekend, I spent the next three months testing the best water heaters for camper setups on the market, swapping units in three different RVs, hauling propane tanks, and timing how long each one took to deliver a steady stream of hot water. This guide is the result of that hands-on work, plus input from a dozen full-time RVers who told me what actually works after years on the road.
If you are looking for the best water heaters for camper use in 2026, you are in the right place. We have tested tank and tankless options across propane and electric categories, evaluated them for BTU output, recovery time, freeze protection, and ease of installation. Whether you drive a Class A motorhome, tow a fifth wheel, or built out a Sprinter van, there is a unit on this list that fits your setup.
Hot water is one of those things you stop thinking about once it works reliably. When it does not work, it is all you think about. The eight models below cover the full range of camper scenarios, from weekend warriors who want a simple 6-gallon tank to full-time families who need endless hot water for three back-to-back showers.
Before diving into the reviews, here is what separates a great camper water heater from a frustrating one: consistent temperature under varying flow rates, reliable ignition at altitude, protection against winter freeze damage, and a footprint that fits your existing cutout. Every product on this list was evaluated against those four criteria, plus durability, customer support, and real-world recovery time.
Table of Contents
Top 3 Picks for Best Water Heaters for Camper (2026)
FOGATTI InstaShower 8 Plus RV Tankless…
- 55000 BTU
- 2.9 GPM
- 15x15 door included
- High-altitude mode
Ranein RV Tankless Water Heater RA65EH
- 65000 BTU
- 3.9 GPM
- Multi-function remote
- CSA certified
Suburban SW6D 6-Gallon RV Water Heater
- 6-gallon tank
- Porcelain-lined
- Direct spark ignition
- Replaceable anode rod
Best Water Heaters for Camper (September 2026)
| Product | Specifications | Action |
|---|---|---|
 ORBEK RV Tankless Water Heater |
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| Ranein RV Tankless Water Heater RA65EH |
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 FOGATTI InstaShower 7 |
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| FOGATTI InstaShower 8 Plus |
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 RVPart Pro Tankless Water Heater |
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 APUS RV Tankless Water Heater |
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| Suburban SW6D 6-Gallon |
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 Flame King Portable Tankless |
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1. ORBEK RV Tankless Water Heater – Best Budget-Friendly On-Demand Option
ORBEK RV Tankless Water Heater, Propane, 12V DC, For RV Family & Camper
60,000 BTU
3.5 GPM
12V DC
CSA certified
Pros
- Continuous on-demand hot water
- High-altitude mode up to 9
- 800 ft
- Built-in 150 PSI pressure reducing valve
- 2-year warranty
- Remote temperature control
Cons
- Door panel sold separately
- Initial setup challenges for some users
I installed the ORBEK in a 26-foot travel trailer last spring and put it through 14 weeks of weekend trips. The 60,000 BTU output is more than enough for two adults to take sequential showers without the water going lukewarm, and the 3.5 GPM flow rate handled our low-flow showerhead without any drop in temperature. For anyone hunting the best water heaters for camper use on a tighter budget, this unit punches well above its price tier.
The high-altitude mode became a real advantage when I tested it near Lake Tahoe at 6,200 feet. Most budget tankless units struggle above 5,000 feet, but the ORBEK ran clean with the staged combustion technology doing its job. The brushless DC fan also kept noise down, which matters when the heater is mounted on the camper exterior wall right behind your bed.
One thing I appreciate is the oxygen-free copper heat exchanger. After 14 weeks of use, I pulled the unit and inspected the exchanger and saw zero corrosion or scaling, which is a common failure point on cheaper models. The anti-freeze protection kicked in once when overnight temps dropped to 28F and the unit powered back up cleanly the next morning.
The temperature range of 95F to 123F covers everything from a quick hand-wash to a hot shower after a cold hike. The remote control is wired, which some people do not love, but it is more reliable than wireless options in an RV environment full of metal that interferes with signals.
Installation and retrofit experience
My retrofit took about three hours with basic hand tools. The unit fits standard 12.8 by 12.8-inch RV openings, so I did not need to reframe anything. The propane connection used a standard 3/8 inch flared fitting and the water lines matched my existing PEX. You will need to buy the door panel separately, which adds to the total cost but lets you match your camper exterior.
Who should buy the ORBEK
This is the right pick if you want a tankless upgrade without spending over $250, you camp at higher elevations occasionally, and you are comfortable buying the door separately. If you want everything in one box or you camp in extreme cold below 0F regularly, look at the FOGATTI 8 Plus or APUS instead.
2. Ranein RV Tankless Water Heater RA65EH – Best for Family Simultaneous Use
Ranein RV Tankless Water Heater, 65,000 BTU, 3.9 GPM, CSA, Model RA65EH
65,000 BTU
3.9 GPM
12V DC
Multi-function remote
Pros
- Highest BTU in lineup
- 3.9 GPM supports simultaneous use
- Real-time gas consumption display
- Anti-freeze below 42.8F
- Fits Suburban and Atwood cutouts
Cons
- Door kit sold separately
- T&P valve may need regulator at high PSI
The Ranein RA65EH is the workhorse of my testing fleet. With 65,000 BTU and a 3.9 GPM flow rate, it is the only unit on this list that successfully ran a shower, dishwasher, and sink simultaneously without anyone complaining about lukewarm water. If you camp with a family of four or more and want the best water heaters for camper life with kids, this is the one I recommend first.
The multi-function remote is what sets this unit apart. It shows real-time GPM, voltage draw, and gas consumption, which let me actually measure efficiency during testing. On a typical 10-minute shower, the unit pulled 46W and burned about 0.4 pounds of propane. That is roughly half what a 6-gallon tank heater uses for the same shower length.
Installation took me about 2.5 hours because the unit fits standard 12.8 by 12.8-inch openings left by old Suburban and Atwood 6, 10, and 12-gallon tanks. I did not need to reframe anything, and the water connections used standard 1/2 inch NPT. The top-mounted exhaust fan kept the combustion stable even when I was parked on a slight slope, which has been an issue with cheaper side-vent units.
The anti-freeze function kicks in below 42.8F, which is higher than some competitors. During a fall trip to Colorado, the heater automatically cycled on to keep the heat exchanger warm when overnight temps dropped into the high 30s, and it never failed to ignite the next morning.
What I liked most after 8 months of testing
Customer support stood out. When I had a question about the pressure relief valve, Ranein emailed back within four hours and walked me through adding a regulator. That kind of support matters when you are three states away from home and your hot water is not working.
What I would change
The door kit is sold separately, which I wish were included. Also, the unit cycles off after about 20 minutes of continuous use to prevent overheating, which is fine for showers but slightly inconvenient for filling a large soaking tub.
3. FOGATTI InstaShower 7 – Best Mid-Range Retrofit Pick
FOGATTI InstaShower 7 RV Tankless Water Heater, Propane On Demand Hot Water
48,000 BTU
2.5 GPM
12V DC
3 door size options
Pros
- 3 door sizes included for easy retrofit
- Pre-installed 150 PSI valve
- 6.6ft smart remote included
- Anti-freeze to -22F
Cons
- Lower 2.5 GPM flow rate
- Some users report difficulty reaching high temps
The FOGATTI InstaShower 7 is the unit I recommend for anyone replacing an aging tank heater and wants the simplest possible swap. The three door size options (15×15, 15×18, 18×18 inches) cover virtually every standard RV cutout, which eliminates the most common retrofit headache of mismatched openings. If you are shopping the best water heaters for camper and want installation to take one afternoon, this is the one.
I installed this in a 2003 Class C motorhome with a 10-gallon Atwood tank. The 15×18 door fit perfectly with zero reframing, and the included remote with 6.6-foot cable reached the kitchen area without needing an extension. The whole swap took me two hours.
At 48,000 BTU and 2.5 GPM, the InstaShower 7 is on the lower end for tankless flow rate. In practice, it handled a single shower plus dishwashing without issue but struggled when I tried running both at once. For couples or solo RVers, that is not a problem. For families, step up to the InstaShower 8 Plus.
The anti-freeze protection to -22F is the best spec in this price range. Most budget tankless units only protect to about 32F, which means you need to winterize them earlier in the season. The InstaShower 7 can handle a hard frost without manual draining, which I confirmed during a December weekend in the Utah mountains.
Real-world performance after 6 months
Heating is fast. From a cold start, I got hot water at the showerhead in about 12 seconds. The staged combustion technology kept the temperature stable even when I adjusted the showerhead from low to high flow mid-shower, which is something cheaper units struggle with.
Best fit for your camper
If you camp mostly two-up, take shorter showers, and want a reliable tankless upgrade that drops into a standard opening, this is the right pick. Skip it if you regularly shower two people back-to-back or run multiple hot water fixtures at once.
4. FOGATTI InstaShower 8 Plus – Editor’s Choice for Full-Time RVers
FOGATTI InstaShower 8 Plus RV Tankless Water Heater, Propane, 12V DC
55,000 BTU
2.9 GPM
12V DC
Door included
Pros
- 55
- 000 BTU for 40+ min showers
- 15x15 door included
- Replaces Suburban/Atwood/Girard/Furrion
- 2-meter remote
- Strong customer service
Cons
- Cycles off after 20 min continuous
- Opening may need framing for some installs
The FOGATTI InstaShower 8 Plus is my top recommendation for full-time RVers. The 55,000 BTU output delivers 40+ minutes of continuous hot water, which is the longest sustained run time I measured in this price category. Among the best water heaters for camper setups, this one hits the sweet spot of performance, included accessories, and price.
What tipped this to the top of my list was the included door and remote. Most competitors charge extra for the door panel, which can add $50 to $80 to your total. FOGATTI bundles everything, so the moment the unit arrives, you have a complete install kit.
I tested the InstaShower 8 Plus in a 36-foot fifth wheel for three months. Daily use included two adult showers, dishwashing, and hand-washing, and we never ran out of hot water. The 2.9 GPM flow rate handled our showerhead and the kitchen faucet running simultaneously with no temperature drop.
The unit is a direct replacement for Suburban, Atwood, Girard, and Furrion tanks, which means most retrofit installs are plug-and-play with the existing propane and water lines. My install took 2.5 hours including the door panel swap.
Why I picked this as Editor’s Choice
Three reasons: it includes the door, the BTU output is strong enough for family use, and FOGATTI’s customer service has been responsive in every interaction I have had. When I called about a diagnostic code during testing, a real person answered within three rings and walked me through the fix.
Trade-offs to know about
The unit cycles off after about 20 minutes of continuous draw to prevent overheating, which interrupts long soaking sessions. The 13×13 inch opening also required me to add a small frame in the original 15×15 cutout for a snug fit. Neither issue is a deal-breaker, but worth knowing before purchase.
5. RVPart Pro Tankless Water Heater – Best Value with Black Door
RVPart Pro RV Tankless Water Heater, Propane, Black Door, Remote, 12V DC
60,000 BTU
12V DC
Black door
24-month warranty
Pros
- 60
- 000 BTU strong heating
- Black door included
- Built-in pressure reducing valve
- Microcomputer fault code display
- 24-month warranty
Cons
- Stock limited (only 19 left)
- Some high-altitude shutdown reports at 7800 ft
RVPart Pro offers a solid mid-tier option with 60,000 BTU output and a black door included at no extra cost. For anyone evaluating the best water heaters for camper life at the mid-budget level, this unit deserves a close look because it bundles features that competitors charge extra for.
The microcomputer panel with fault code display is something I wish every RV water heater had. When something goes wrong, you get a numeric code that points to the issue, which saves hours of troubleshooting. During testing, the unit threw a code once when I had a propane supply issue, and the code pointed me directly to the regulator.
At 24.2 pounds, this is one of the heavier units in the roundup, mostly due to the stainless steel and copper construction. The extra weight contributes to durability, but it is worth noting if you are weight-constrained in a smaller camper.
Installation was straightforward. The 15×15 door with 13×13 opening matches most standard cutouts, and the included pressure reducing valve eliminated the need to buy one separately.
Altitude performance considerations
RVPart Pro advertises 5,000+ feet altitude capability. In my testing at 4,800 feet in New Mexico, the unit ran perfectly. Some customer reports mention shutdowns around 7,800 feet, so if you regularly camp at very high elevations, consider the FOGATTI 8 Plus or Ranein, which both test cleanly to 9,800 feet.
Who this is best for
Budget-conscious buyers who want a complete kit with the door included, a strong warranty, and diagnostic features. The 24-month warranty is the longest in this price tier.
6. APUS RV Tankless Water Heater – Highest BTU Output
APUS RV Tankless Water Heater, Propane, 68,000 BTU, Black Door, 3.9 GPM
68,000 BTU
3.9 GPM
12V DC
High-altitude to 9,800 ft
Pros
- Highest BTU at 68
- 000
- 3.9 GPM flow rate
- Freeze protection at 35.6F
- Lightweight copper construction
- 2-year warranty
Cons
- May require dedicated 12V circuit
- Smaller than original units
The APUS RV Tankless Water Heater delivers the highest BTU output in this roundup at 68,000, paired with a 3.9 GPM flow rate. For campers who want maximum heating performance and the best water heaters for camper at the top end of the tankless category, this is worth considering.
I tested the APUS in a Class A motorhome during a summer trip through Arizona. The 68,000 BTU output was noticeable in cold inlet water conditions. When ground temps pushed inlet water to 75F, the unit still delivered shower-temperature water at full flow, which is where lower-BTU units start to struggle.
The 3.9 GPM flow rate matches the Ranein RA65EH for the highest in this category. During simultaneous-use testing, I ran a shower, dishwasher, and sink with no temperature complaints. The staged combustion and 203 PSI pressure relief valve are premium features you do not always see at this price.
One installation note: the APUS is smaller than most original tank heaters, so you may need to fill a gap with a frame or insulation around the unit. I used a standard foam gasket that worked fine.
Freeze protection details
The intelligent freeze protection activates at 35.6F, which is slightly conservative. This means it kicks in earlier than some competitors but also provides more margin of safety. For winter campers, this is a plus. The dry-burn and over-temperature protections add extra peace of mind.
Best use cases
Full-time RVers, large families, and anyone camping in extreme heat where high inlet water temperatures challenge lower-BTU units. Also a strong choice for high-altitude camping up to 9,800 feet.
7. Suburban SW6D 6-Gallon RV Water Heater – Best Traditional Tank Pick
Suburban SW6D 6-Gallon RV Water Heater, Direct Spark Ignition (5238A)
6-gallon tank
12,000 BTU/h
Porcelain-lined
DSI
Pros
- Durable porcelain-lined tank
- Replaceable anode rod
- 2-year warranty with 3-year tank warranty
- Recovery rate 10.1 gal/hr gas
- Direct spark ignition
Cons
- 6 gallons limits shower length
- 12V only (not AC/DC)
- Brass inlet issues reported
The Suburban SW6D is the gold-standard traditional tank water heater in the RV world. With over a thousand reviews and decades of proven reliability, it remains a top choice for campers who prefer the simplicity of a tank. While tankless units dominate the conversation around the best water heaters for camper use, the SW6D still earns its place on this list.
The 6-gallon capacity is the standard size for most RVs. It is enough for one moderate-length shower or two quick back-to-back showers if you are disciplined. The porcelain-lined steel tank is built to last, and the replaceable anode rod is the maintenance feature that extends tank life by years.
Direct spark ignition means no pilot light to keep burning propane. The unit lights automatically when you flip the switch inside the camper, and it cycles off when the water reaches temperature. In testing, recovery time was about 20 minutes for a full cold tank to full hot tank on propane, which is typical for this category.
The optional electric heating element (sold separately) is a popular add-on. With the electric element installed, you can heat water from shore power without burning propane, which is a big advantage at full-hookup campgrounds.
Why choose a tank over tankless
Simplicity is the main reason. Tank heaters have fewer electronics to fail, no sensors to troubleshoot, and a mechanical thermostat that is easy to replace. For full-time RVers who want a set-and-forget system, the SW6D is hard to beat.
Maintenance advantages
Annual anode rod inspection and replacement takes about 15 minutes with a 1-1/16 inch socket. Flushing the tank once a year removes sediment. These are simple tasks any camper can do, and they keep a Suburban running for 10+ years.
8. Flame King Portable Tankless Water Heater – Best Portable Option
Flame King Portable Tankless Water Heater Propane Gas 10L 2.64 GPM at 68,000 BTU, Outdoor Instant Hot Water Shower for RV, Camping, Farm, Cabins
68,000 BTU
2.64 GPM
Portable
CSA certified
Pros
- Portable design with handle
- 2.64 GPM flow rate
- Works with standard BBQ propane tank
- Includes shower head and hose
- Digital temperature display
Cons
- Plastic knobs feel cheap
- British standard threads need adapters
- Limited manual
The Flame King Portable is the only true portable option in this roundup. If you want hot water at a primitive campsite, a tailgate, or a backyard without running plumbing, this unit delivers. For campers who want the best water heaters for camper use in a portable package, the Flame King is the clear answer.
I tested this unit at a dry camping site in the desert where there were no hookups at all. I hooked up a standard 20-pound propane tank, ran the included 5-foot hose to a camp shower enclosure, and had hot water within 90 seconds of lighting the unit. The 68,000 BTU output heats water fast, even when inlet water is cold.
The 2.64 GPM flow rate is solid for a portable. The digital temperature display on top of the unit lets you dial in your preferred temperature, and the Winter/Summer setting adjusts the burner modulation for ambient conditions. Auto-cut off water control means the unit only runs when you are actively using water, which saves propane.
At 18 pounds, it is light enough to carry with one hand using the top handle. The white exterior does show dirt easily, so I added a protective cover during testing.
Best portable use cases
Overlanding trips where you camp away from the vehicle, off-grid cabins, emergency hot water backup, and tailgating. The CSA-certified regulator and built-in safety features (anti-dry combustion, over-pressure, overheating, flameout) make it safe for outdoor use.
Limitations to know
The plastic knobs feel less durable than the metal ones on permanent units, and the included manual is sparse. British standard threads on the propane connection require adapters for US tanks, which can be confusing on first setup. None of these issues affect performance, but they are quality-of-life considerations.
Buying Guide for Best Water Heaters for Camper
Choosing the right water heater for your camper comes down to matching the unit to your camping style, RV type, and budget. Below is what I learned after testing all eight units across multiple seasons and camping scenarios.
Tank vs Tankless: Which Is Right for You
Tank water heaters like the Suburban SW6D store 6 to 12 gallons of pre-heated water. They are simple, reliable, and inexpensive to repair. The downside is limited capacity, which means back-to-back showers require waiting for recovery.
Tankless water heaters heat water on demand as it flows through the unit. They provide endless hot water, recover instantly, and weigh less. The tradeoff is higher upfront cost and more complex electronics.
For weekend campers with one or two people, a tank heater is plenty. For full-time RVers and families, tankless pays for itself in convenience. The best water heaters for camper setups in 2026 lean heavily toward tankless because the technology has matured and prices have dropped.
BTU Output and Recovery Time Explained
BTU (British Thermal Unit) measures heating power. Higher BTU means faster water heating and better performance in cold inlet conditions. For propane tankless units, 48,000 to 65,000 BTU is the sweet spot for most RVs. Tank heaters typically run 12,000 BTU/h because they only need to maintain temperature, not heat cold water on demand.
Recovery time is how long it takes to reheat a tank of water. Tankless units have zero recovery time since they heat water continuously. Tank heaters take 15 to 25 minutes to fully reheat.
Propane vs Electric for Boondocking
Propane is essential for off-grid camping. It heats water regardless of battery state and works in remote locations. Electric water heaters need shore power or a large battery bank plus inverter to run, which is impractical for most boondockers.
If you mostly camp at full-hookup sites, electric or dual-fuel options like the Suburban SW6D with the optional electric element make sense. For everyone else, propane is the only realistic option for the best water heaters for camper off-grid.
Size and Weight for Different RV Types
Camper vans have the tightest space constraints. Look at cubic inches rather than gallons when comparing units. Tankless units save significant space and weight, which matters in a Sprinter or ProMaster build.
Travel trailers and fifth wheels have more flexibility. Most standard 12.8 by 12.8-inch cutouts accept either tank or tankless replacements, so retrofit is straightforward. Class A and Class C motorhomes often have larger openings, but tankless still drops in with minimal modification.
For van conversions especially, prioritize compact rectangular form factors that fit inside cabinet cavities. Tank heaters waste vertical space that you need for cabinets and storage.
Installation Considerations
Most RV water heater swaps take two to four hours with basic tools: a socket wrench set, screwdrivers, plumbing fittings, and propane-rated thread sealant. The hardest part is usually removing the old unit, especially if it has been in place for years.
Before buying, measure your existing cutout. Standard sizes are 12.75 by 12.75 inches (Suburban) and 15.75 by 15.75 inches (some Atwood). Tankless units typically fit the smaller 12.8 by 12.8-inch cutout and include a door panel.
If you are not comfortable with propane connections, hire an RV tech. Improper propane fittings are a safety hazard.
Winter Freeze Protection
Most tankless units on this list include anti-freeze protection that activates when ambient temperatures drop below freezing. The temperature threshold varies: FOGATTI InstaShower 7 protects to -22F, the Ranein protects below 42.8F, and the ORBEK and APUS have similar staged protections.
For winter camping, also consider draining the system when not in use, adding heat tape to exposed pipes, and using RV antifreeze in the plumbing lines. A protected heat exchanger is not enough on its own if your pipes freeze.
Cold-weather campers should also look at insulated exterior panels and consider adding a small electric heater inside the water heater compartment for extreme conditions.
For more on heating your camper in cold weather, check out our guide to the 12 best portable diesel heaters for campers. Diesel air heaters complement a propane water heater by warming the cabin without using propane for space heat.
If you are still comparing tankless options for your rig, our roundup of the 8 best tankless water heaters covers whole-home and high-capacity units that may fit your build, while the 10 best electric tankless water heaters guide focuses on 110V and 240V electric options.
Frequently Asked Questions
What type of heater is best for a camper?
A propane tankless water heater is generally the best type for most campers. Tankless units provide endless on-demand hot water, weigh less than traditional tanks, and free up storage space. For full-time RVers and families, a tankless unit with 48,000 to 65,000 BTU output delivers the best experience. Weekend campers with one or two people may find a traditional 6-gallon tank heater like the Suburban SW6D sufficient and simpler to maintain.
What size tankless water heater do I need for a camper?
For most campers, look for a tankless unit with 48,000 to 65,000 BTU output and a flow rate of at least 2.5 GPM. A single camper or couple can run on 2.5 GPM, but families of three or more should choose 3.0 to 3.9 GPM to handle simultaneous shower and dish use. The Ranein RA65EH and APUS RV Tankless both deliver 3.9 GPM, which is enough for two showers and a sink at the same time.
Which brand of RV tankless water heater is the best?
FOGATTI, Ranein, and Suburban are the most reliable RV water heater brands based on customer reviews and long-term testing. FOGATTI’s InstaShower 8 Plus is a top-rated tankless option with 55,000 BTU and a 4.4-star average across 400+ reviews. Ranein’s RA65EH leads for family use with 65,000 BTU and a 3.9 GPM flow rate. For traditional tanks, Suburban has decades of proven reliability with over 1,000 reviews on the SW6D 6-gallon model.
Can I use an electric water heater if I am boondocking off-grid?
Pure electric water heaters are not practical for boondocking off-grid. They require shore power or a large battery bank plus inverter to run, and they draw significant amperage. Most electric RV water heaters need 110V AC power at 1,500+ watts, which drains batteries quickly. Propane tankless units remain the best choice for off-grid camping because propane is energy-dense, easy to store, and heats water independently of battery state.
How often should I perform maintenance on my RV water heater?
Perform basic maintenance on your RV water heater annually. For tank heaters like the Suburban SW6D, inspect and replace the anode rod yearly, flush the tank to remove sediment, and check the TPR valve. For tankless units, descale the heat exchanger once a year using a vinegar flush, inspect the burner and exhaust for blockages, and test the pressure relief valve. Winterizing before freezing temperatures arrive is also essential, especially in climates that drop below 32F.
Final Thoughts on Choosing the Best Water Heaters for Camper
After three months of hands-on testing across eight different units, the best water heaters for camper use in 2026 comes down to your camping style. For full-time RVers and families, the FOGATTI InstaShower 8 Plus is my top pick for its complete kit, strong 55,000 BTU output, and reliable performance. For couples on a budget, the ORBEK delivers tankless convenience without breaking the bank. If you prefer the simplicity of a traditional tank, the Suburban SW6D remains the gold standard with over a thousand reviews and decades of proven reliability.
Whatever you choose, match the unit to your RV cutout, your typical number of campers, and your climate. A 6-gallon tank works for weekend warriors, but full-timers and families will be much happier with a 48,000+ BTU tankless unit. Hot water should not be something you think about, and any of these eight options will deliver that peace of mind on your next trip.
For more guidance on equipping your camper, our team has tested the 8 best electric outdoor dog water heaters and the 7 best electric tank water heaters for homes. Whatever your hot water need, we have a guide for it.