RVs are all about freedom, but lukewarm showers? Not so freeing. A good electric tankless water heater can be a total game-changer, providing hot water on demand without hogging space or weighing you down. I remember when I upgraded mine – suddenly, boondocking felt a whole lot more civilized. Finding the right one, though, can be tricky. Let’s look at some top contenders for keeping your RV showers comfortably hot.
Product Overview: Quick Summary
- ECOTOUCH 27kW Electric Tankless Water Heater: High power, suitable for multiple fixtures.
- VEVOR 18kW Electric Tankless Water Heater: Compact design, good for smaller RVs.
- Rheem RTEX-13 Electric Tankless Water Heater: Reliable brand, simple installation.
- Stiebel Eltron Tempra 24 Plus: Advanced temperature control, energy efficient.
- iHeat S-16 Electric Tankless Water Heater: Budget-friendly, point-of-use solution.
Top 5 Best Electric Tankless Water Heaters for RV
1. ECOTOUCH 27kW Electric Tankless Water Heater
The ECOTOUCH 27kW is a powerhouse, designed to handle multiple hot water demands simultaneously. It’s a good pick if you need hot water for showers, sinks, and maybe even a small washing machine in your RV. This unit offers precise temperature control, ensuring a consistent hot water supply.
Pros:
- ✅ High power output for multiple fixtures.
- ✅ Precise temperature control.
- ✅ Digital display for easy monitoring.
Cons:
- ❌ Requires significant electrical infrastructure.
- ❌ May be overkill for small RVs with limited electrical capacity.
- ❌ Higher initial cost compared to lower-powered models.
Verdict: Best for larger RVs with robust electrical systems needing hot water for multiple uses at once.
2. VEVOR 18kW Electric Tankless Water Heater
VEVOR’s 18kW model balances power and size, making it a solid option for many RV setups. It’s compact enough to fit in tighter spaces while still providing enough hot water for comfortable showers and kitchen use. This unit is known for its ease of installation and relatively simple operation.
Pros:
- ✅ Compact size suitable for RV installations.
- ✅ Good balance of power and efficiency.
- ✅ Relatively easy to install.
Cons:
- ❌ May struggle with simultaneous hot water demands.
- ❌ Temperature fluctuations can occur with high flow rates.
- ❌ Build quality may not be as robust as higher-end brands.
Verdict: A great choice for RV owners who need a compact and efficient water heater for typical use cases.
3. Rheem RTEX-13 Electric Tankless Water Heater
Rheem is a trusted name in water heating, and the RTEX-13 delivers reliable performance in a compact package. It’s designed for point-of-use or low-demand applications, making it a good fit for smaller RVs or supplemental hot water needs. I’ve always appreciated Rheem’s straightforward designs.
Pros:
- ✅ Reputable brand with a history of reliability.
- ✅ Simple installation process.
- ✅ Compact and lightweight design.
Cons:
- ❌ Limited hot water output may not be sufficient for all needs.
- ❌ Best suited for single-fixture use.
- ❌ May require professional installation depending on your RV’s setup.
Verdict: Ideal for smaller RVs or as a supplemental water heater where reliability and ease of installation are key.
4. Stiebel Eltron Tempra 24 Plus
The Stiebel Eltron Tempra 24 Plus is an advanced tankless water heater that prioritizes energy efficiency and consistent temperature. It uses advanced flow control to modulate power, ensuring hot water without temperature swings. If you’re serious about conserving energy and want a premium experience, this is one to consider.
Pros:
- ✅ Advanced temperature control for consistent hot water.
- ✅ Energy-efficient operation.
- ✅ Durable and long-lasting construction.
Cons:
- ❌ Higher upfront cost.
- ❌ Requires a significant electrical upgrade in some RVs.
- ❌ More complex installation compared to basic models.
Verdict: Best for RV owners who want premium performance, energy efficiency, and are willing to invest in a higher-end unit.
5. iHeat S-16 Electric Tankless Water Heater
The iHeat S-16 offers a budget-friendly entry point into the world of tankless water heating. It’s designed for point-of-use applications, making it suitable for a single sink or shower in a smaller RV. Don’t expect top-of-the-line performance, but it gets the job done without breaking the bank.
Pros:
- ✅ Affordable price point.
- ✅ Compact size for easy installation.
- ✅ Simple and straightforward operation.
Cons:
- ❌ Limited hot water output.
- ❌ Not suitable for multiple fixtures.
- ❌ May experience temperature fluctuations.
Verdict: A good option for RVers on a tight budget who need a basic point-of-use water heater.
Buying Guide
Choosing the right electric tankless water heater for your RV involves a few key considerations. Here’s what you should keep in mind:
- Electrical Capacity: This is the big one. RVs have limited electrical systems, so ensure your chosen heater doesn’t overload your circuits. Check your RV’s electrical panel and generator output.
- Hot Water Demand: How many fixtures will you be using simultaneously? A small sink needs less power than a shower. Consider your typical usage patterns.
- Size and Space: RVs are tight on space. Measure the available area before buying a unit. Compact models are often the best choice.
- Installation: Are you comfortable doing the installation yourself, or will you need a professional? Some units are easier to install than others.
- Climate: If you camp in cold climates, you might need a more powerful heater to compensate for colder incoming water temperatures.
- Flow Rate: Look at the heater’s flow rate (gallons per minute). Match it to your showerhead and faucet flow rates for optimal performance.
FAQs
Q: Will an electric tankless water heater drain my RV battery?
A: Electric tankless water heaters require a significant amount of power, and they are designed to run on shore power or a generator, not batteries. Using one on battery power would drain it very quickly.
Q: Can I install an electric tankless water heater myself?
A: If you’re comfortable with basic plumbing and electrical work, you might be able to. However, it’s generally recommended to have a professional handle the installation, especially if it involves significant wiring or plumbing modifications.
Q: How do I maintain an electric tankless water heater in my RV?
A: Regular maintenance includes flushing the unit to remove mineral buildup and checking the electrical connections. Refer to the manufacturer’s instructions for specific maintenance recommendations.
Q: What size tankless water heater do I need for my RV?
A: Size depends on your hot water needs. For a single shower and sink, an 18kW to 24kW unit might suffice. If you plan to run multiple fixtures simultaneously, consider a higher-powered model.
Q: Are electric tankless water heaters more energy-efficient than traditional tank heaters?
A: Yes, they are generally more energy-efficient because they only heat water when you need it, eliminating standby heat loss associated with traditional tank heaters.
Conclusion
Finding the best electric tankless water heater for your RV can dramatically improve your camping experience. Consider your RV’s electrical capacity, your hot water needs, and your budget. Whether you opt for the high-powered ECOTOUCH, the compact VEVOR, or a budget-friendly option like the iHeat, a tankless water heater can provide the comfort of on-demand hot water wherever your adventures take you.
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