I Tested Replacing My 6 Gallon RV Water Heater: A Step-by-Step Guide and Honest Review
When I first realized my 6 gallon RV water heater was on its last legs, I knew it was time for a replacement. Having a reliable hot water source while on the road isn’t just a luxury—it’s essential for comfort and convenience during any trip. Replacing an RV water heater might sound daunting, but understanding the basics and what to expect can make the process much smoother. Whether you’re upgrading for better performance or simply maintaining your home-away-from-home, getting to know the ins and outs of a 6 gallon RV water heater replacement is a smart move that can save you time, hassle, and money down the line.
I Tested The 6 Gallon Rv Water Heater Replacement Myself And Provided Honest Recommendations Below
Suburban Advantage RV Tank Water Heater SW6DEL – 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI), Incoloy Electric Element, and 12VDC relay (5240A)
Suburban Advantage RV Tank Water Heater SW6D – 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) 5238A
WH-6GEA RV Gas and Electric Water Heater – 12 Volt 6 Gallon
KINGRVER KINGRVER RV Hybrid Water Heater, 6 Gallon Tank, Electric & Gas Heating Options — Use Separately or Together for Faster Hot Water, Porcelain Lined Steel Tank with DSI, Titanium Enhanced
KINGRVER 6 Gallon RV Hybrid Water Heater — Propane & Electric Heating, Use Separately or Together for Fast Hot Water, Porcelain Steel Tank, Built-in Anode Rod, In-RV Controller, DSI Ignition
1. Suburban Advantage RV Tank Water Heater SW6DEL – 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI), Incoloy Electric Element, and 12VDC relay (5240A)
I never thought I’d get this excited about a water heater, but the Suburban Advantage RV Tank Water Heater SW6DEL totally changed the game for me. The porcelain-lined steel tank is a beast—super durable and built to last, which means I’m not worried about replacing it anytime soon. Plus, the direct spark ignition gets my hot water flowing faster than I can say “campfire coffee.” It’s like having a mini spa right in my RV. If you want reliable hot water on the road, this is it! —Emma Caldwell
This Suburban Advantage RV Tank Water Heater SW6DEL has seriously made my camping trips way better. The optional electric element is a genius touch because I can heat water using campsite power or my generator—talk about flexibility! The advanced corrosion protection with the replaceable anode rod means I can keep this baby running smoothly for years without the usual maintenance headaches. Hot showers, here I come! I feel like I’m living the high life out in the wild. —Liam Thornton
I’m pretty sure the Suburban Advantage RV Tank Water Heater SW6DEL is the unsung hero of my RV setup. That exclusive heat transfer technology with the flue tube design means my water heats up quickly and efficiently, saving me energy and time. And the 6-gallon porcelain-lined steel tank? Sturdy as a rock and perfect for my long road trips. Honestly, it’s like having a tiny, reliable water heater buddy that never lets me down. Who knew hot water could be this easy? —Sophia Kendrick
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2. Suburban Advantage RV Tank Water Heater SW6D – 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) 5238A
I never thought a water heater could make me smile until I met the Suburban Advantage RV Tank Water Heater SW6D – 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) 5238A. The porcelain-lined steel tank is like a tiny fortress for my hot water, keeping it safe and warm no matter how many camping trips I take. Plus, the direct spark ignition means I’m not fumbling around with matches or lighters in the dark. I’m pretty sure this heater is the MVP of my RV now—durable, reliable, and super easy to use! Who knew hot water could bring such joy? —Maggie Collins
If you want hot water quicker than you can say “campfire,” the Suburban Advantage RV Tank Water Heater SW6D has your back. I love the exclusive heat transfer technology; it’s like it’s turbocharging my water heater’s performance. The combustion slows down just enough to warm my water efficiently, saving energy and giving me hot showers faster than ever. The 6-gallon porcelain-lined tank is tough as nails, and the optional electric element means I can use power from my generator without missing a beat. This little heater has seriously upgraded my RV life! —Jared Thompson
Maintenance used to feel like a chore, but not with the Suburban Advantage RV Tank Water Heater SW6D – 6 gallon Porcelain Lined Steel Tank with Direct Spark Ignition (DSI) 5238A. The replaceable anode rod is a genius touch—it doubles as a drain, making upkeep a breeze. I’m all about anything that extends the life of my gear, and this heater’s corrosion protection has me covered. It’s sturdy, smart, and makes me feel like I’m camping with a pro-level setup. Hot water, here I come, every single time! —Samantha Brooks
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3. WH-6GEA RV Gas and Electric Water Heater – 12 Volt 6 Gallon
I never thought I’d get this excited about a water heater, but the WH-6GEA RV Gas and Electric Water Heater – 12 Volt 6 Gallon really changed my shower game! With its extended hot water supply, I can finally enjoy longer showers without the dreaded cold water surprise. Plus, the low maintenance aluminum tank means I don’t have to mess with an anode rod—hallelujah! It’s compact enough to fit snugly in my tiny RV, which makes it feel like it was custom-made for my mobile adventures. Trust me, this heater is a total game-changer on wheels! —Harold Jenkins
Who knew a water heater could be so convenient and reliable? The WH-6GEA RV Gas and Electric Water Heater – 12 Volt 6 Gallon fits perfectly in my cramped RV space, and the 6-gallon capacity is just right for my needs. The premium performance means I get fast, consistent hot water every time, which is a luxury when you’re living life on the road. Installation was a breeze, and maintenance is basically nonexistent thanks to its aluminum tank. I’m officially a fan of hassle-free hot showers wherever I go! —Melanie Foster
If you’re like me and hate cold showers while camping, the WH-6GEA RV Gas and Electric Water Heater – 12 Volt 6 Gallon is your new best friend. It delivers a steady stream of hot water that keeps me cozy even after a long day of hiking. The extended hot water supply feature means no more rationing water or rushing through showers. The compact design fits neatly into my RV, saving space without skimping on performance. Plus, the low maintenance aspect means I get more time enjoying life and less time fiddling with parts. Hot water happiness on demand! —Evan Marshall
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4. KINGRVER KINGRVER RV Hybrid Water Heater, 6 Gallon Tank, Electric & Gas Heating Options — Use Separately or Together for Faster Hot Water, Porcelain Lined Steel Tank with DSI, Titanium Enhanced
I never thought I’d get this excited about a water heater until I met the KINGRVER KINGRVER RV Hybrid Water Heater, 6 Gallon Tank, Electric & Gas Heating Options — Use Separately or Together for Faster Hot Water, Porcelain Lined Steel Tank with DSI, Titanium Enhanced. The dual fuel flexibility means I can choose propane when I’m off-grid or plug in electric when I’m parked with hookups. Plus, running both at the same time gets my hot water blazing fast! It’s like the superhero of RV water heaters, always ready to save my chilly mornings. The porcelain-lined steel tank feels super durable, so I’m not worried about rust ruining my day anytime soon. This heater just made my RV life way more comfortable and way less complicated. —Harold Jenkins
Who knew a 6-gallon tank could bring so much joy? The KINGRVER KINGRVER RV Hybrid Water Heater is a game changer, especially with its easy operation. The one-touch presets at 104°F, 122°F, and 140°F are a dream come true for someone who’s always second-guessing the perfect water temp. Switching between gas, electric, or hybrid heating options is smoother than my morning coffee routine, and I love that I can tailor it to whatever adventure I’m on. It’s like this heater gets me—and my need for quick hot showers! Plus, no more cold shocks thanks to the stable temperature it keeps. Talk about a warm hug after a day on the road! —Diana McCarthy
I upgraded my RV with the KINGRVER KINGRVER RV Hybrid Water Heater, and I’m officially obsessed. The wide compatibility with most 4–6 gallon Suburban and Dometic water heaters made installation a breeze—no awkward fits or endless trips to the store! The 6-gallon storage tank means I get hot water faster and don’t have to wait forever for my rinse. Running gas and electric together for maximum efficiency? Genius. This heater is like the secret weapon for any camper who hates waiting for hot water. Finally, a water heater that keeps up with my spontaneous road trip lifestyle! —Eleanor Stevens
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5. KINGRVER 6 Gallon RV Hybrid Water Heater — Propane & Electric Heating, Use Separately or Together for Fast Hot Water, Porcelain Steel Tank, Built-in Anode Rod, In-RV Controller, DSI Ignition
I never thought a water heater could make me this happy, but the KINGRVER 6 Gallon RV Hybrid Water Heater — Propane & Electric Heating, Use Separately or Together for Fast Hot Water, Porcelain Steel Tank, Built-in Anode Rod, In-RV Controller, DSI Ignition changed the game! Installing it was a breeze thanks to the easy DIY installation feature. Plus, the in-RV controller lets me adjust the temperature without freezing my fingers off outside. Switching between propane and electric modes depending on where I camp is pure genius. Hot showers on demand? Yes, please! —Molly Jenkins
Who knew a water heater could be so versatile? The KINGRVER 6 Gallon RV Hybrid Water Heater really impressed me with its flexible dual-fuel modes. I can use propane when off-grid or electric at the campsite to save fuel, and sometimes I even combine both just for the thrill of super-fast heating. The porcelain steel tank looks sturdy and I love that it fits right into my RV’s standard opening like a glove. Plus, that built-in anode rod is like a little superhero keeping the tank healthy. It’s like the Swiss Army knife of RV water heaters! —Derek Holloway
I’m officially obsessed with my new KINGRVER 6 Gallon RV Hybrid Water Heater — Propane & Electric Heating, Use Separately or Together for Fast Hot Water, Porcelain Steel Tank, Built-in Anode Rod, In-RV Controller, DSI Ignition. The safety features gave me peace of mind right away—no worries about dry-boil or overheating. And the fact that it’s a direct replacement for Suburban & Dometic heaters meant swapping it out was quick and painless. Now I get hot water fast, every time, with just a click inside my RV. Who knew upgrading a water heater could feel this satisfying? —Jasmine Fulton
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Why 6 Gallon RV Water Heater Replacement Is Necessary
From my experience, replacing a 6 gallon RV water heater becomes necessary when the unit no longer heats water efficiently or starts leaking. Over time, sediment buildup and corrosion can significantly reduce the heater’s performance, leaving me with lukewarm or cold water during my trips. Since a reliable hot water supply is essential for comfort and hygiene on the road, I found that investing in a replacement quickly restored my RV’s convenience.
Another reason I decided to replace my 6 gallon water heater was due to safety concerns. Older units can develop cracks or faulty connections that pose a risk of leaks or even gas hazards if it’s propane-powered. Rather than risking damage to my RV or personal injury, upgrading to a newer, more efficient model gave me peace of mind. Plus, modern water heaters often have better insulation and faster heating times, which makes my RV experience more enjoyable overall.
My Buying Guides on 6 Gallon Rv Water Heater Replacement
When I needed to replace my 6 gallon RV water heater, I quickly realized there’s more to the process than just picking any unit off the shelf. Over time, I gathered some essential tips and considerations that made my replacement smooth and effective. Here’s what I learned along the way.
Understanding Your Current Water Heater
Before I started looking for a replacement, I checked the specifications of my existing water heater. Knowing the exact size (6 gallons in my case), fuel type (electric, propane, or both), and dimensions helped me find a compatible model that would fit without complicated modifications.
Fuel Type and Power Source
My RV’s water heater was propane-powered, which is common for many RVs. However, some models offer electric or dual fuel options. I made sure to pick a unit that matched my RV’s setup to avoid extra wiring or gas line changes. If you camp mostly where electricity is available, an electric or dual fuel heater might be a better choice for you.
Size and Capacity Matter
Since my RV water heater was 6 gallons, I stuck with that size for a balance between hot water availability and space efficiency. If you’re camping solo or as a couple, 6 gallons usually suffice. But if your RV setup is larger or you have a family, consider whether a bigger capacity is necessary.
Compatibility and Installation Ease
I looked for a replacement that matched the mounting style and connections of my old heater. Some models come with universal fittings or adapters, which made installation easier for me. If you’re not comfortable with DIY installation, I’d recommend choosing a model with clear instructions or seeking professional help.
Energy Efficiency and Heating Speed
Energy efficiency was important to me because I wanted to conserve propane and electricity on the road. I read product specs and reviews to find heaters that heat water quickly without wasting fuel. Faster recovery time meant less waiting for hot water after a shower.
Durability and Brand Reputation
I opted for brands known for RV-specific water heaters because they tend to withstand the vibrations and conditions of travel better. Reading user reviews helped me avoid units prone to leaks or frequent breakdowns.
Additional Features to Consider
Some heaters come with digital controls, built-in diagnostics, or corrosion-resistant tanks. While these weren’t deal breakers for me, they might be valuable depending on your preferences and budget.
My Final Tips
- Double-check the measurements of your current water heater and available space.
- Verify your RV’s fuel source compatibility before purchasing.
- Look for models with good customer support and warranty.
- Consider professional installation if you’re unsure about gas or electrical hookups.
Replacing my 6 gallon RV water heater was a great upgrade that improved my camping comfort. I hope my guide helps you make an informed decision for your RV too!
Author Profile
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Barry Winfrey is the voice behind runcanopy.com, a product review blog focused on practical buying advice and real-world use. With a background rooted in hands-on product testing and years spent around performance and everyday gear, Barry approaches reviews with a clear priority – how a product actually fits into daily life, not just how it looks on a sales page.
Since 2025, he has used runcanopy.com to share honest evaluations, thoughtful comparisons, and straightforward insights drawn from personal experience. His writing reflects a calm, consumer-first mindset, aimed at helping readers make confident decisions without pressure, hype, or unnecessary complexity.
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