Top 10 Best gallon in 2026

Main highlights

• •DURABLE CONSTRUCTION: Engineered with a porcelain-lined steel tank, the Suburban 6 Gallon Tank Water Heater is designed for durability, mimicking the longevity of residential tank water heaters, ensuring years of reliable hot water.
• •ADVANCED CORROSION PROTECTION: Equip with a replaceable anode rod and this water heater provides enhanced protection against tank corrosion. The anode rod also doubles as a drain, simplifying maintenance and extending the lifespan of the unit.
• •FLEXIBLE POWER OPTIONS: Featuring an optional electric element, this allows you to utilize campsite or generator power for heating water, offering unmatched versatility.
• •EXCLUSIVE HEAT TRANSFER TECHNOLOGY: Suburban's exclusive flue tube design slows the combustion process, optimizing heat transfer and ensuring the water in the tank heats efficiently, saving energy and providing hot water faster.
• •SPECIFICATIONS: Product Dimensions - 12.69" x 12.69" x 19.19"; Cutout Dimensions - 12.75" x 12.75" x 19.19". BTU/h - 12,000. Optional electric element input - 1,440. Recovery rate electric only (Gallons/Hour) - 6.1; Recovery rate gas only (Gallons/Hour) - 10.1. Backed by a 2-year limited warranty and a 3-year tank limited warranty.

Main highlights

• •𝐑𝐞𝐩𝐥𝐚𝐜𝐞𝐬 𝐚𝐥𝐥 𝐑𝐕 𝐖𝐚𝐭𝐞𝐫 𝐇𝐞𝐚𝐭𝐞𝐫𝐬: There are three door options with two colors, black and white, which can easily refit RV electric water heater and RV tankless water heater. 15" x 15", 15" x 18", or 18" x 18" is required for installation, sold separately
• •𝐈𝐧𝐬𝐭𝐚𝐧𝐭 𝐇𝐨𝐭 𝐖𝐚𝐭𝐞𝐫: Fogatti InstaShower 7 delivers 2.5 gallons of hot water per minute and 48,000 BTU heat output, ideal for meeting the needs of a busy RV family. The tankless feature saves energy by only engaging the burners when water is needed, be it for a hot shower, clean dishes, or washing hands. Compared with tank water heater, there is no need to wait for the water to heat up and replace anode rods frequently
• •𝐅𝐨𝐠𝐚𝐭𝐭𝐢 𝟗𝟖𝟎𝟎𝐟𝐭 𝐀𝐥𝐭𝐢𝐭𝐮𝐝𝐞 𝐑𝐕 𝐖𝐚𝐭𝐞𝐫 𝐇𝐞𝐚𝐭𝐞𝐫 | 𝐒𝐭𝐚𝐠𝐞𝐝 𝐂𝐨𝐦𝐛𝐮𝐬𝐭𝐢𝐨𝐧 𝐓𝐞𝐜𝐡 + 𝐀𝐧𝐭𝐢-𝐒𝐜𝐚𝐥𝐝 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧. The high-altitude suitability mode allows the machine to run smoothly even when driving the RV at 9,800 feet. Staged combustion technology maintains consistent temperatures by reducing cold spots and scalding. Enjoy endless hot water by adding cold water to reach your desired temperature
• •𝐑𝐕 𝐖𝐚𝐭𝐞𝐫 𝐇𝐞𝐚𝐭𝐞𝐫 𝐰/ 𝐏𝐫𝐞-𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐞𝐝 𝟏𝟓𝟎 𝐏𝐒𝐈 𝐕𝐚𝐥𝐯𝐞 & 𝟔.𝟔𝐟𝐭 𝐒𝐦𝐚𝐫𝐭 𝐑𝐞𝐦𝐨𝐭𝐞: Fogatti has always thought of you, built into a high-quality 150 PSI pressure relief valve of the product, so you don't have to buy and install it separately. A 6.6ft-long intelligent remote controller allows easy adjustments of water temperature from 95°F to 123°F
• •𝐅𝐨𝐠𝐚𝐭𝐭𝐢 𝐂𝐒𝐀-𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐑𝐕 𝐖𝐚𝐭𝐞𝐫 𝐇𝐞𝐚𝐭𝐞𝐫 𝐰/ 𝐅𝐨𝐫𝐜𝐞𝐝 𝐄𝐱𝐡𝐚𝐮𝐬𝐭 + 𝐀𝐮𝐭𝐨 𝐒𝐡𝐮𝐭𝐨𝐟𝐟 & -𝟐𝟐°𝐅 𝐀𝐧𝐭𝐢𝐟𝐫𝐞𝐞𝐳𝐞. The tankless RV water heater is CSA certified and has multiple protection features such as a built-in forced exhaust fan on top, stable combustion and automatic gas shut-off for accidental flame failure. Antifreeze protection keeps the system functional even in cold weather
• •𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧 𝐀𝐬𝐬𝐢𝐬𝐭𝐚𝐧𝐜𝐞: If you have any questions about installation and operation, please do not hesitate to contact us. We will serve you wholeheartedly

Main highlights

• •DIRECT FIT REPLACEMENT: Upgrade your RV with ease using the Suburban Advantage Direct Fit 6 Gallon Steel Tank Water Heater. Replace competitive 6-gallon aluminum tank water heaters without unsightly and unnecessary RV sidewall modifications.
• •NO MODIFICATIONS NEEDED: Enjoy a hassle-free installation with no need for cut-out modifications, interior cabinet modifications for depth, or major modifications for plumbing connections, ensuring a smooth and efficient upgrade.
• •DURABLE PORCELAIN LINED TANK: Experience the longevity of a residential-style water heater with the Suburban Advantage Direct Fit. Its porcelain lined steel tank is built to last, providing you with years of reliable hot water.
• •ADVANCED CORROSION PROTECTION: Equip with a replaceable anode rod and this water heater provides enhanced protection against tank corrosion. The anode rod also doubles as a drain, simplifying maintenance and extending the lifespan of the unit.
• •OPTIONAL ELECTRIC ELEMENT: Maximize your power options. 10,000 BTU Input, 14.14 Recovery Gallons Per Hour using LP Gas, 6.10 Recovery Gallons Per Hour using Electric Element, 20.24 Recovery Gallons Per Hour using both LP Gas and Electric Element.

Main highlights

• •DIRECT FIT REPLACEMENT: Upgrade your RV with ease using the Suburban Advantage Direct Fit 6 Gallon Steel Tank Water Heater. Replace competitive 6-gallon aluminum tank water heaters without unsightly and unnecessary RV sidewall modifications.
• •NO MODIFICATIONS NEEDED: Enjoy a hassle-free installation with no need for cut-out modifications, interior cabinet modifications for depth, or major modifications for plumbing connections, ensuring a smooth and efficient upgrade.
• •DURABLE PORCELAIN LINED TANK: Experience the longevity of a residential-style water heater with the Suburban Advantage Direct Fit. Its porcelain lined steel tank is built to last, providing you with years of reliable hot water.
• •ADVANCED CORROSION PROTECTION: Equip with a replaceable anode rod and this water heater provides enhanced protection against tank corrosion. The anode rod also doubles as a drain, simplifying maintenance and extending the lifespan of the unit.
• •OPTIONAL ELECTRIC ELEMENT: Maximize your power options. 10,000 BTU Input, 14.14 Recovery Gallons Per Hour using LP Gas, 6.10 Recovery Gallons Per Hour using Electric Element, 20.24 Recovery Gallons Per Hour using both LP Gas and Electric Element.

Main highlights

• •EXTENDED HOT WATER SUPPLY: Designed for efficiency, this unit provides a steady supply of hot water, making it ideal for longer showers or filling larger tanks.
• •LOW MAINTENANCE: Built with an aluminum tank that requires no anode rod, this heater is simple to maintain—no fuss, no corrosion worries.
• •COMPACT AND CONVENIENT: With a 6-gallon capacity and compact dimensions (16" x 16" x 14"), this model is perfect for tight RV spaces. It’s easy to install and delivers dependable hot water for mobile living.
• •PREMIUM PERFORMANCE FOR RV LIVING: Engineered for on-the-go comfort, this top-tier water heater offers fast and consistent hot water output—perfect for life on the road.

Main highlights

• •𝐃𝐈𝐑𝐄𝐂𝐓 𝐔𝐏𝐆𝐑𝐀𝐃𝐄 & 𝐏𝐄𝐑𝐅𝐄𝐂𝐓 𝐅𝐈𝐓 𝐅𝐎𝐑 𝐘𝐎𝐔𝐑 𝐑𝐕: The FOGATTI HyBridShower 6 Ultra is engineered as a seamless, drop-in replacement for SUBURBAN & DOMETIC. It perfectly fits the standard RV opening, making installation quick and effortless
• •𝐔𝐋𝐓𝐈𝐌𝐀𝐓𝐄 𝐃𝐔𝐀𝐋 𝐏𝐎𝐖𝐄𝐑 - 𝐆𝐀𝐒 & 𝐄𝐋𝐄𝐂𝐓𝐑𝐈𝐂 𝐅𝐋𝐄𝐗𝐈𝐁𝐈𝐋𝐈𝐓𝐘: Experience the ultimate versatility with our advanced RV water heater gas/electric hybrid system. Choose propane for off-grid adventures, switch to electric at campgrounds to save fuel, or activate DUAL-FUEL mode for explosive heating power and rapid recovery
• •𝐒𝐔𝐏𝐄𝐑𝐈𝐎𝐑 𝐂𝐎𝐑𝐑𝐎𝐒𝐈𝐎𝐍 𝐃𝐄𝐅𝐄𝐍𝐒𝐄 𝐖𝐈𝐓𝐇 𝐏𝐎𝐖𝐄𝐑𝐄𝐃 𝐀𝐍𝐎𝐃𝐄 𝐑𝐎𝐃: Maximize your RV hot water heater's lifespan with our powered anode rod—an active corrosion-fighting system. Paired with a durable porcelain-lined steel tank, it delivers unmatched protection against rust and decay, significantly extending the unit’s service life for years of reliable performance
• •𝐈𝐍𝐓𝐄𝐋𝐋𝐈𝐆𝐄𝐍𝐓 𝐓𝐄𝐌𝐏𝐄𝐑𝐀𝐓𝐔𝐑𝐄 𝐂𝐎𝐍𝐓𝐑𝐎𝐋 & 𝐒𝐀𝐅𝐄𝐓𝐘: Customize your hot water heater experience, preventing scalding in summer and delivering cozy warmth in winter. Built with your safety as a priority, it incorporates comprehensive protections including Anti-Dry Fire, Over-Temperature Cutoff, and Over-Pressure Relief, guaranteeing worry-free operation on all your journeys
• •𝐒𝐏𝐄𝐂𝐈𝐅𝐈𝐂𝐀𝐓𝐈𝐎𝐍𝐒 & 𝐄𝐀𝐒𝐘 𝐃𝐈𝐘 𝐈𝐍𝐒𝐓𝐀𝐋𝐋𝐀𝐓𝐈𝐎𝐍: This RV water heater is designed for the modern RVer. Key Specifications: 12,000 BTU/Hr Gas Heating; 1440W Electric Element; Rapid Recovery Rate; Standard 1/2" NPT Ports; and operates on 12V DC for ignition & 120V AC for electric mode. The anode rod for RV water heater also simplifies draining.

Main highlights

• •EASY UPGRADE! PERFECT FIT FOR SUBURBAN & DOMETIC: Tired of your old, slow, or leaky 6-gallon RV water heater? The KINGRVER is designed as a direct replacement for most Suburban and Dometic models. It matches the standard 13"x13" opening & 15"x15" door, making installation a breeze. Get a next-gen upgrade in heating, insulation, leak protection, and ease-of-use!
• •HOT WATER YOUR WAY! FLEXIBLE DUAL-FUEL POWER: Quickly replenish hot water anytime, anywhere! Propane-Only: Ideal for off-grid freedom. Electric-Only: Save propane using campsite/generator power. Dual-Fuel BOOST: Get blazing-fast hot water for multiple showers or quick recovery – perfect for families and high demand. Say goodbye to cold shower surprises!
• •BUILT TO LAST! ADVANCED TANK & CORROSION SHIELD: Stop worrying about tank rust and leaks! Our KINGRVER features an upgraded, easily replaceable anode rod providing superior protection against corrosion. This means a longer-lasting tank, fewer maintenance headaches, and more time enjoying your adventures.
• •CUSTOM COMFORT & SAFETY! 3 ADJUSTABLE TEMP SETTINGS: Unlike old fixed-temp heaters, YOU control the heat! Choose a lower temp in summer to prevent scalding, or crank it up for a cozy hot shower in winter. Plus, enjoy peace of mind with multiple built-in safety features: Dry-Burn Protection, Water Pressure Protection, and Overheat Protection. (CSA Certified for Safety & Quality)
• •DROP-IN REPLACEMENT! INSTALLS IN MINUTES (DIY-FRIENDLY): Designed for hassle-free installation, this heater is a perfect fit for older 6-gallon RV models. It uses the standard 13"x13" opening, and connects easily to your RV’s existing 12V DC (for gas ignition) and 120V AC (for electric heating) power. Water inlet/outlet ports are standard 1/2" NPT. Get back on the road faster!

Main highlights

• •Electronic ignition gas burner system
• •Anode rod not required – less maintenance
• •Door sold separately
• •Energy Source: LP gas

Main highlights