When life on the road calls, convenience and comfort are no longer optional luxuries—they’re essential. One such fundamental is having reliable hot water at your fingertips, whether it’s for a refreshing shower after a long hike or easy dishwashing after dinner. Enter the RV on-demand water heater, a game-changer for modern-day adventurers.
This post will cover everything you need to know about RV on-demand water heaters—from how they work to why they’re worth the investment, along with key considerations for choosing the best one for your travels.
What Is an RV On-Demand Water Heater?
An RV on-demand water heater, also known as a tankless water heater, is a compact device that provides hot water instantly as needed. Unlike traditional water heaters that store hot water in a tank, these systems heat water only when you turn on the tap or shower. This means you don’t have to wait for a tank to refill or worry about running out of hot water mid-way through your shower. For RV living, where space and efficiency are paramount, this technology is a clear winner.
Why Upgrade to an On-Demand Water Heater?
1. Endless Hot Water Supply
Running out of hot water is a common woe with standard water heaters. RV tankless water heaters solve this problem by continuously heating water as it flows through the System. Whether you’re camping solo or traveling with a large family, everyone gets a comfortable, hot shower.
2. Energy Efficiency
Traditional water heaters consume energy constantly to keep stored water warm, even when you don’t need it. On-demand units heat water only when necessary, reducing energy waste and lowering propane or electricity costs.
3. Space-Saving Design
Tankless water heaters are compact and can easily fit into tight spaces in your RV. Switching to a tankless model allows you to gain valuable storage space for other travel essentials.
4. Durability and Longevity
With fewer components subject to wear and tear, on-demand water heaters typically last longer than their conventional counterparts. With proper maintenance, most models can serve you well for 10–15 years. This means fewer replacements and repairs, saving you money in the long run.
5. Eco-Friendly
Tankless water heaters are beneficial for your wallet and the environment. By heating water only when it is needed, these units conserve energy and reduce emissions. In fact, switching to a tankless model can reduce your carbon footprint by up to 60%.
How Does an RV On-Demand Water Heater Work?
RV on-demand water heaters operate using propane, electricity, or a combination of both. Here’s a simplified breakdown of how they work:
- Water Flow Activation: When you turn on a hot water faucet, water flows into the heater.
- Heating Elements: The unit’s burners (in propane models) or heating coils (in electric models) are activated instantly to heat the water as it passes through.
- Hot Water Delivery: Hot water flows out of your faucet within seconds, eliminating the wait time traditional systems often require.
Tankless water heaters also have a few other features that make them unique:
- Small Size: Traditional hot water tanks can take up quite a bit of space in your home, but tankless systems are much smaller and can even be mounted on walls to save even more space.
- Energy Efficiency: Since tankless water heaters only heat water when you need it, they use less energy overall compared to traditional systems, which constantly heat and store hot water. This means lower utility bills and reduced carbon emissions.
- Longevity: Tankless systems typically last longer than traditional tanks, with an average lifespan of 20 years compared to 10-15 years for tanks. This means fewer frequent replacements.
Temperature controls and safety features vary by model, but most systems allow you to adjust the heat to your preference through a central control panel.
Choosing the Right RV On-Demand Water Heater
Investing in the right water heater for your RV is critical for convenience and comfort. Here are some key considerations to keep in mind:
1. Fuel Type
RV on-demand water heaters are powered by propane, electricity, or both.
- Propane Models are ideal for off-grid camping because they don’t require a connection to electricity.
- Electric Models work well if you stay at campgrounds with electrical hookups.
- Hybrid Systems give you the flexibility to switch between propane and electricity based on what’s available.
2. Water Flow Rate (GPM)
Measure the tankless water heater’s flow rate in gallons per minute (GPM). For small to mid-sized RVs, units with a flow rate of 2.5–3 GPM typically satisfy basic needs like showering and doing dishes simultaneously. Larger families or RV setups may require higher GPM units.
3. Climate Considerations
If you frequently travel to colder regions, choose a model designed to perform well in lower temperatures. Some brands offer freeze protection for added reliability during winter adventures.
4. Installation and Compatibility
Ensure the water heater you choose is compatible with your RV’s existing plumbing and venting system. Some units are designed as direct replacements for traditional heaters, while others may require professional installation.
5. Budget
Although RV on-demand water heaters are an investment, the long-term savings in energy efficiency and convenience make them worthwhile. Prices typically range between $400 and $1,000, depending on the brand and features. When choosing a unit, consider the overall cost, including installation and any additional plumbing or electrical work that may be needed. It’s also important to factor in potential maintenance costs and the warranty offered by the manufacturer.
Top Brands for RV On-Demand Water Heaters
There are several reputable brands to consider when shopping for an RV tankless water heater. Here are a few favorites among RV owners:
- Girard: Known for its energy-efficient designs and easy-to-use digital controls.
- Suburban: Offers durable models with excellent heating performance, even in cold climates.
- Camplux: A budget-friendly choice that delivers reliable hot water for occasional travelers.
- Eccotemp: Offers a variety of compact and lightweight models perfect for smaller RVs.
- Atwood: A trusted brand that offers reliable water heaters with a wide range of temperature options.
Factors to Consider When Choosing an RV On-Demand Water Heater
When selecting an on-demand water heater for your RV, there are a few factors to consider:
- Size and Capacity: Make sure the water heater you choose can fit in your RV’s designated space and has enough capacity to supply hot water for your needs.
- Fuel Type: Most RV tankless water heaters run on propane gas, but some models also offer electric or hybrid options. Consider which fuel type will be most convenient and cost-effective for your travels.
- Flow Rate: The flow rate of a water heater determines how much hot water it can provide per minute. For RVs, a flow rate of 1 to 2 gallons per minute is typically sufficient.
- Energy Efficiency: Look for an on-demand water heater with high energy efficiency ratings to save on fuel costs and reduce environmental impact.
- Safety Features: Some models come equipped with safety features such as automatic shut-off or temperature control to prevent accidents and ensure peace of mind while using the water heater.
- Ease of Installation and Maintenance: Consider the ease of installation and maintenance for your chosen water heater, especially if you plan
Pro Tips for Maintaining Your RV On-Demand Water Heater
To keep your tankless water heater running efficiently for years to come, follow these tips:
- Flush the System Regularly: Mineral buildup can reduce efficiency over time. Use a descaling solution every few months to flush the System.
- Inspect the Filter: Check and clean the water inlet filter periodically to prevent blockages.
- Monitor for Leaks: Inspect connections and hoses regularly to identify any signs of wear or leaks.
- Winterize Your Heater: Winterize Your Heater: If you’re storing your RV in freezing conditions, drain the water heater completely to prevent internal damage.
- Regular Maintenance: Schedule regular maintenance checks with a certified technician to keep your water heater functioning at its best.
Additional Tips for RV Water Heater Maintenance
While following the above tips will help keep your RV water heater in good condition, there are a few additional things you can do to prevent issues from arising:
- Check the Anode Rod: The anode rod is a sacrificial component that attracts minerals and corrosion instead of your water tank. Check and replace it if necessary every 1-2 years, depending on usage.
- Protect Against Power Surges: Protect Against Power Surges: Use an electrical surge protector when hooking up your RV to external power sources to prevent damage to your water heater and other electronic components.
- Flush the Tank Regularly: Flushing your water tank regularly helps remove sediment and mineral buildup, which can affect the performance of your heater. Use a flushing wand or consult with a professional for proper flushing techniques.
- Inspect for Leaks: Check for any leaks around your water heater, including plumbing connections, valves, and fittings. Fixing any leaks promptly can prevent further damage to your unit.
- Keep it Clean: Regularly cleaning the exterior of your water heater can help prevent dust and dirt from accumulating inside and potentially causing problems.
- Schedule Professional Maintenance: Schedule Professional Maintenance: It’s recommended to have a professional inspect and service your RV water heater at least once a year to ensure it’s running efficiently and to catch any potential issues before they become significant problems.
- Drain and Flush the Tank: It’s essential to drain and flush your RV water heater at least once a year, or more frequently if you live in an area with hard water. This will help remove any sediment or mineral buildup that can affect the performance of your water heater.
- Monitor Water Pressure: Excessively high water pressure can cause damage to your RV water heater over time. Use a water pressure regulator to ensure the pressure is kept at a safe level for your unit.
Are RV On-Demand Water Heaters Worth the Investment?
The short answer is yes! For RVers who value comfort, efficiency, and convenience, upgrading to an on-demand water heater is a decision that pays off in spades. You get all the hot water you need without the limitations of a traditional tank heater, saving space and energy in the process.
Make the Switch to Tankless Comfort
There’s no better time to upgrade your RV lifestyle than now. With the right RV on-demand water heater, you can say goodbye to lukewarm showers and hello to a world of hot, hassle-free convenience on the road.
If you’re ready to take the plunge, evaluate your travel habits and explore the brands and models that align with your needs. With a bit of planning, you’ll transform your RV into the ultimate home away from home.
