We have spent around 35 hours to find the right option for you and based on our research Ozek RV Water Heater Magnesium Anode Rod with PTFE Tape – Compatible with Suburban and Mor-Flo Water Heater Tanks – 9.25″ Length ¾” NPT Threads (2 Pack) is our top pick for you. This is one of the best products currently available in the market. However, if you don’t want to spend extra hours then we have another great option for you is Facon 2Packs 12″ x 18″ RV Holding Tank Heater Pad, Up to 50 Gallons Fresh Water/Grey Water/Black Water Holding Tank Heating Pad with Automatic Thermostat Control, 12Volts DC. Here is a review of some of the best heater for an rv, together with their features and functions.
As you read, through the article, you will understand some of the top heater for an rv and learn more about their features. Let’s proceed without wasting any more time.
Best heater for an rv

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GIRARD 2GWHAM Tankless Water Heater
GIRARD 2GWHAM Tankless Water Heater
$614.97 in stock
Features
- POWERFUL PERFORMANCE — At 42,000 BTUs, this continuous hot water heater provides optimal performance for RV plumbing. The quiet, brushless motor runs on 12V power that operates at less than three amps for a nearly noiseless operation
- CONSISTENT TEMP — The onboard microprocessor monitors incoming cold water temperature, flow rate and outgoing hot water temperature to maintain a steady water flow. It also regulates the burner to maintain a consistent temperature, preventing cold spots and scalding water
- HIGHLY EFFICIENT — The Girard RV tankless water heater consumes half the LP gas that a six-gallon tank water heater would consume for the same amount of hot water
- INTELLIGENT CONTROL — With a digital user control panel, you can adjust the temperature setting from 95 to 124°F, toggle between Fahrenheit and Celsius, get a continuous water outlet temperature reading and more. For easy troubleshooting, the control panel also displays error codes if issues arise
- Professional Installation is strongly recommended
Ozek RV Water Heater Magnesium Anode Rod with PTFE Tape – Compatible with Suburban and Mor-Flo Water Heater Tanks – 9.25″ Length ¾” NPT Threads (2 Pack)
Ozek RV Water Heater Magnesium Anode Rod with PTFE Tape - Compatible with Suburban and Mor-Flo Water Heater Tanks - 9.25" Length ¾" NPT Threads (2 Pack)
$13.96 in stock
Features
- Anode rod for hot water heater: If you’re using a water heater tank, you should keep in mind that its interior is always subjected to the corrosive action of oxygen and other elements. To prolong its life and save your money and time, we offer the perfect solution.
- Safety comes first: RV water heater anode rods are made from superior quality, extra-durable magnesium guaranteed to withstand the test of time. Our products are 100% safe for the entire family.
- Compatibility: These anode rods are 9.25” long, ¾” NPT threads and are compatible with Suburban 232767 and Mor-Flo water tanks. The rods use a 1-1/16 inch socket.
- Longer life: Anode rod for hot water heater RV work great at attracting corrosive elements, protecting your water heater, and prolonging its life.
- 2 anodes in one set: The kit includes 2 magnesium anode rods and a PTFE tape, all set for fixing up your water heater tank and optimizing its functionality.
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
$226.38 in stock
Features
- CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches
- LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
- INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
- FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
- EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
Facon 2Packs 12″ x 18″ RV Holding Tank Heater Pad, Up to 50 Gallons Fresh Water/Grey Water/Black Water Holding Tank Heating Pad with Automatic Thermostat Control, 12Volts DC
Facon 2Packs 12" x 18" RV Holding Tank Heater Pad, Up to 50 Gallons Fresh Water/Grey Water/Black Water Holding Tank Heating Pad with Automatic Thermostat Control, 12Volts DC
$50.15 in stock
Features
- ✅Exclusive Technology for Winter Protection: Facon Heater Pads are specifically engineered to protect your RV’s holding tanks, pipes, and steps from freezing during the harsh winter months. Whether you're RVing, camping, or boating, these pads ensure your water systems stay operational, giving you the freedom to travel and enjoy your mobile home or RV, even in cold weather.
- ✅Smart Thermostat Control: With an automatic thermostat built in, the Facon Heater Pad activates when temperatures dip near freezing (44°F ± 5°F) and automatically turns off once the temperature rises to a safe 68°F ± 5°F. Simply switch the heater on when needed, and let it do the work. You’ll never have to worry about your tanks freezing up again!
- ✅Efficient and Reliable: Designed for use with up to 50-gallon RV holding tanks (fresh water, grey water, and black water), the Facon Heater Pad operates at 13.5V DC with 65W power consumption. The 2-wire system allows for easy installation without the need for a plug, providing a clean and hassle-free setup.
- ✅ Easy and Secure Installation: Applying the Facon Heater Pad is simple—just peel off the adhesive backing and stick it directly to the tank. The single-sided heating element is designed to adhere securely, ensuring maximum heat transfer. For best results, install the pad on the tank surface or wrap it around the tank for even heat distribution. Avoid applying heavy pressure or placing objects on the pad to maintain the integrity of the heating elements.
- ✅QAI Certified for Unmatched Quality & Safety: Rest assured, your Facon Heater Pads meet rigorous industry standards with QAI certification, a mark of quality and reliability. This certification ensures that your heater pads are built to the highest safety and performance standards, giving you peace of mind on every adventure.
Dometic Atwood 6 Gallon Water Heater GC6AA-10E Black
Dometic Atwood 6 Gallon Water Heater GC6AA-10E Black
Features
Part Number | 777111975 |
Size | 16" x 12.5" x 18.5" |
Suburban Manufacturing SW6DE RV WTR HTR 1 PK
Suburban Manufacturing SW6DE RV WTR HTR 1 PK
5 used from $361.79
Features
- 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.
Facon 12″ x 18″ RV Holding Tank Heater Pad, Up to 50 Gallons Fresh Water/Grey Water/Black Water Holding Tank Heating Pad with Automatic Thermostat Control, 12Volts DC
Facon 12" x 18" RV Holding Tank Heater Pad, Up to 50 Gallons Fresh Water/Grey Water/Black Water Holding Tank Heating Pad with Automatic Thermostat Control, 12Volts DC
$29.85 in stock
Features
- ✅Exclusive Technology for Winter Protection: Facon Heater Pads are specifically engineered to protect your RV’s holding tanks, pipes, and steps from freezing during the harsh winter months. Whether you're RVing, camping, or boating, these pads ensure your water systems stay operational, giving you the freedom to travel and enjoy your mobile home or RV, even in cold weather.
- ✅Smart Thermostat Control: With an automatic thermostat built in, the Facon Heater Pad activates when temperatures dip near freezing (44°F ± 5°F) and automatically turns off once the temperature rises to a safe 68°F ± 5°F. Simply switch the heater on when needed, and let it do the work. You’ll never have to worry about your tanks freezing up again!
- ✅Efficient and Reliable: Designed for use with up to 50-gallon RV holding tanks (fresh water, grey water, and black water), the Facon Heater Pad operates at 13.5V DC with 65W power consumption. The 2-wire system allows for easy installation without the need for a plug, providing a clean and hassle-free setup.
- ✅Easy and Secure Installation: Applying the Facon Heater Pad is simple—just peel off the adhesive backing and stick it directly to the tank. The single-sided heating element is designed to adhere securely, ensuring maximum heat transfer. For best results, install the pad on the tank surface or wrap it around the tank for even heat distribution. Avoid applying heavy pressure or placing objects on the pad to maintain the integrity of the heating elements.
- ✅QAI Certified for Unmatched Quality & Safety: Rest assured, your Facon Heater Pads meet rigorous industry standards with QAI certification, a mark of quality and reliability. This certification ensures that your heater pads are built to the highest safety and performance standards, giving you peace of mind on every adventure.
Caframo Limited True North Space heater
Caframo Limited True North Space heater
$104.49 in stock
Features
- This rugged electric heater with built-in adjustable thermostat keeps the room warm on the chilliest nights. The True North heater is equipped with 5 settings including steady heat to high output for maximum heat and circulation.
- The anti-freeze setting is a great winter storage solution that automatically turns on when the weather drops to 38F ( 3C), ensuring the air temperature in the room remains above the freezing point. Solid steel housing and low profile design make it easy to store when not in use.
- Total climate control with three heat and two fan settings
- Ultra-quiet operation
- Unique 'low profile' design prevents tipovers
SUBURBAN MFG 5243ASW10DE 10-G Direct Spark,ELEC ELMNT
SUBURBAN MFG 5243ASW10DE 10-G Direct Spark,ELEC ELMNT
$579.68 in stock
4 used from $512.09
Features
- DURABLE CONSTRUCTION: Engineered with a porcelain-lined steel tank, the Suburban 10 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 - 16.22" x 16.22" x 20.50"; Cutout Dimensions - 16.38" x 16.38" x 20.50". 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.
Camco 35953 8″ Supreme Permanent By-Pass Kit for 6 Gallon Tank – Lead Free
Camco 35953 8" Supreme Permanent By-Pass Kit for 6 Gallon Tank - Lead Free
$20.00 in stock
Features
- Saves Money on Antifreeze: Kit allows you to by-pass your water heater in your RV, motor home, or travel trailer each time you winterize; Saves between 6-10 gallons of antifreeze
- Compatibility: For 6-gallon RV water heater tanks; Fitting Thread Size: 1/2-inch -14 NPT (tapered threads)
- Permanent Installation: Allows you to by-pass you water heater without additional disconnections
- Kit Includes: (1) 8-inch crimp-resilient by-pass hose, (2) 3-way brass valves with shutoff for non-restrictive flow, and (1) roll of Teflon tape
- Unique Valve Handles: Valve handles have flow indication, offering a visual indication of the valve’s operation
With this, our list of best heater for an rv has come to an end. Like we said in the earlier part of this post, we have done extensive research on these heater for an rv. Not to mention, the prices of the heater for an rv are also flexible. You should also check Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted one of the most sold items in the market.