Looking for a reliable RV water heater that gives you hot water on demand without wasting space or energy?
Overview of the Furrion® RV Tankless Gas 60,000 BTU Water Heater – 16.14″ x 16.14″ White Door – 2.4 GPM – Vortex Technology steadies temperatures – Propane Gas-Powered Technology, Electric Ignition – 2021128847
You’re looking at a tankless propane unit designed specifically for RV use, engineered to bring instant hot water into your rig while taking up less space than a traditional tank system. The Furrion® RV Tankless Gas 60,000 BTU Water Heater (model 2021128847) combines a high-BTU burner, a compact footprint, and technologies aimed at steady temperatures and vibration resistance for life on the road.
This model is also designed to function as a retrofit replacement door for Suburban 4/6 gallon water heaters, making it a convenient upgrade if you want tankless performance without reworking wall openings. It includes a wall controller and is covered by a two-year warranty, which gives you a little extra confidence in your purchase.
Key specifications
You’ll want the essential specs at a glance before you commit. The table below breaks down the primary technical details so you can quickly compare this unit to other options.
| Feature | Specification |
|---|---|
| Model | Furrion® RV Tankless Gas 60,000 BTU Water Heater 2021128847 |
| Heating Power | 60,000 BTU |
| Flow Rate | Up to 2.4 GPM (gallons per minute) |
| Minimum Ambient Operating Temp | 32°F |
| Fuel Type | Propane (gas-powered) |
| Ignition | Electric ignition |
| Temperature Control Tech | Vortex Technology + dual sensors |
| Replacement Door Size | 16.14″ x 16.14″ (fits Suburban 4/6 Gallon models) |
| Product Dimensions (W x H x D) | 12.81 x 12.62 x 20.75 inches |
| Included | Water heater unit, wall controller, documentation |
| Warranty | 2-year limited warranty |
| Vibration Protection | VibrationSmart technology |
You’ll notice the most important numbers—BTU output and flow rate—are front and center. The 60,000 BTU burner gives you the punch you need for consistent hot water, while the 2.4 GPM flow rate defines how many fixtures you can realistically run at once.
Heating performance
You’ll appreciate how quickly this heater can heat water thanks to the 60,000 BTU burner. In practice, that high output means fast temperature rise even when incoming water is fairly cold, which matters when you’re using showers, sinks, or doing dishes.
Because it’s tankless, you won’t have to wait for a storage tank to reheat after heavy use. The 2.4 GPM rating is modest compared to residential tankless units, but for RV applications it’s usually enough for a single shower or combination usage (e.g., shower + small sink use). If you want simultaneous multiple showers, you’ll need to manage flow settings or accept cooler temps.
Flow rate and temperature stability
You’ll find the 2.4 GPM flow rate fits most RV needs, but it’s important to match your expectations. Showers with low-flow heads will feel comfortable under this unit, and dishwashing or handwashing tasks are easy. If you plan to fill tubs or run multiple high-flow fixtures simultaneously, you’ll hit the unit’s limits.
Furrion’s Vortex Technology helps keep the temperature consistent by mixing hot and cold water effectively so you don’t get sudden swings. That’s especially useful when someone else on board runs a faucet, since temperature swings are a common frustration in small water systems.
Cold-weather operation
You’ll want a heater that won’t quit when the temperature drops. This unit continues to supply hot water while ambient temps fall to 32°F, which makes it more reliable in colder conditions than some other RV heaters that lose performance well above freezing.
Even so, you should still take winterization and freeze protection seriously. Tankless units may have limited or no active freeze protection, so if you’re storing your RV in freezing climates, follow the manufacturer’s winterizing instructions or use external freeze protection measures.
Build quality and road durability
You’ll notice this heater is built with road use in mind. Furrion’s VibrationSmart technology and robust components are designed to resist the intense vibration and movement you encounter on uneven roads. That means fewer headaches from components loosening or failing when you’re off-grid and rolling.
Materials and assembly are geared toward long-term durability under RV conditions, and the white door finish gives a clean, OEM look for many rigs.
Replacement door compatibility
If you’re replacing a Suburban 4- or 6-gallon water heater door, this Furrion model fits the required 16.14″ x 16.14″ opening, making retrofit straightforward on the aesthetic side. You won’t need to enlarge the wall cutout, which saves time and limits modifications to your coach exterior.
Keep in mind that while the door dimensions match, the internal mounting and venting paths can differ between brands, so you’ll want to assess the installation path before starting and plan for adapter components if required.
What’s included in the box
You’ll receive the essentials to get started: the water heater itself, a wall controller for setting temperatures and modes, and documentation. The included controller is a convenient way to make adjustments from inside your rig without reaching the unit.
You’ll still need additional installation materials (gas lines, fittings, venting components, electrical connections) that are typically specified in the installation manual or provided by your installer.
Installation considerations
You should approach installation with safety and local codes in mind. Here are the main points you should consider or discuss with your installer:
- Gas hookup: You’ll need a properly sized propane line and fittings. Gas connections must be leak-tested and comply with codes. If you’re not certified, hire a professional to ensure safe installation.
- Venting: Proper venting for combustion air and exhaust is critical. Follow the manufacturer’s venting requirements and verify the wall or roof openings align.
- Electrical: The unit uses electric ignition, so you’ll need a reliable 12V supply from your RV’s electrical system. Ensure wiring is correct and fused per instructions.
- Mounting: The product’s dimensions and the door size mean it will fit many standard openings, but internal mounting brackets, vent clearances, and surrounding cabinetry should be checked.
- Clearance and access: Make sure you have enough service access for maintenance tasks like cleaning, burner inspection, and vent checks.
- Professional installation: You’ll save time and reduce risk by using a qualified RV technician or licensed plumber/Gas fitter who knows RV-specific requirements.
You should never attempt to bypass safety features or install the unit in a way that violates venting or gas code requirements.
Operation and controls
You’ll control temperatures and settings using the included wall controller, which gives you the convenience of in-cabin adjustments. Electric ignition makes startup simpler than pilot-light systems; you won’t be lighting a pilot manually or dealing with pilot outages.
The unit’s dual-sensor safety system will automatically shut power off if temperatures exceed safe limits, so you’ll have a layer of protection against overheating. Follow the controller instructions to adjust setpoints, and remember that setting higher temperatures may reduce available flow before you reach scalding levels.
Energy use and efficiency
You’ll find the 60,000 BTU rating gives you high output when you need it, but efficiency depends on usage patterns. Tankless systems generally avoid standby losses of tank heaters because they heat water only when you demand it. That can save propane if your usage is sporadic.
However, tankless units draw significant instantaneous BTU which may lead to higher short-term fuel use during heavy demand. For continuous low-demand use (e.g., one shower at a time), you’ll typically see better overall efficiency compared to maintaining a hot tank.
Noise and vibration
You’ll likely notice the blower and burner noise typical of tankless gas units when operating, but Furrion’s VibrationSmart design aims to reduce rattles and vibration transfer into the coach structure. Noise should be manageable, but if you’re very sensitive to mechanical noise, plan to position the unit in a compartment that provides some sound isolation.
Maintenance and care
You’ll extend the lifespan of your unit with regular maintenance. Here’s what to keep on your checklist:
- Annual burner inspection and cleaning: soot or deposits can reduce efficiency and cause ignition issues.
- Flush the heat exchanger: mineral buildup reduces heat transfer and flow; flush annually if you have hard water or more frequently in very hard water areas.
- Check for leaks and corrosion: inspect all fittings, valves, and vent connections regularly.
- Verify sensors and safety cut-offs: ensure the dual-sensor protection system is functioning.
- Clean air intakes and vents: keep combustion air unobstructed for safe operation.
- Inspect the door seal: ensure weatherproofing and secure mounting of the replacement door.
If you’re unsure about maintenance tasks, a qualified RV tech can perform these checks and advise on frequency based on your water hardness and usage.
Troubleshooting common issues
You’ll likely run into a few predictable problems in everyday use. Here are common symptoms and steps you can try, but always consult the manual or a professional if you’re not comfortable working on gas appliances.
- No ignition or unit won’t start:
- Check propane supply and tank valves.
- Verify 12V power to the unit and wall controller.
- Inspect ignition electrode and clean if fouled.
- Low hot water flow or temperature:
- Confirm flow rate isn’t exceeding 2.4 GPM.
- Check for clogged inlet filters or sediment in the heat exchanger.
- Flush the heat exchanger to remove scale.
- Temperature fluctuations:
- Inspect the Vortex mixing valve and flow sensors.
- Ensure other fixtures aren’t suddenly opening and changing system pressure.
- Burner flame issues:
- Clean burner and pilot (if applicable) and verify proper combustion air supply.
- Leaks:
- Tighten fittings; if the leak is inside the heat exchanger or from the unit body, seek professional repair or replacement.
If a safety sensor trips or you detect gas odors, shut off the propane supply, ventilate the area, and get a professional to inspect the unit before further use.
Pros
You’ll likely appreciate these advantages when evaluating the Furrion tankless heater:
- Compact, space-saving design ideal for RV installations and retrofit applications.
- High 60,000 BTU output for fast heating and better performance in cold inlet conditions.
- Vortex Technology helps maintain steady water temperatures during use.
- Electric ignition makes starting convenient and reliable.
- Replacement door designed to fit Suburban 4/6 gallon openings, simplifying retrofits.
- VibrationSmart technology and rugged construction built for mobile use.
- Includes a wall controller for in-cabin access and adjustments.
- 2-year warranty provides a baseline of coverage.
Cons
You should consider these limitations before buying:
- 2.4 GPM flow rate limits simultaneous high-flow usage (e.g., two full showers at once).
- Tankless units can require more propane temporarily during high demand due to the high BTU draw.
- Installation requires careful attention to venting and gas code compliance—may require professional installation.
- Cold-weather operation down to 32°F is good, but you should still take winterization seriously and may need supplemental freeze protection in extreme cold.
- Potential for noise during operation typical of small gas-fired blowers and burners; not as quiet as electric instant heaters.
Safety notes
You should always prioritize safety. Follow manufacturer instructions and local codes for gas and venting. Never ignore gas odors or malfunctioning sensors. If you smell gas or suspect a leak, shut off the propane, ventilate, and seek professional help immediately. Avoid makeshift repairs on gas lines or venting; these systems should be handled by qualified personnel.
Comparison with tank and other tankless RV systems
You’ll find advantages and tradeoffs when comparing this Furrion unit to both traditional tank heaters and other tankless models.
- Versus tank heaters:
- Tankless saves space and avoids standby heat loss, which can be more efficient if you have intermittent water use.
- Tank heaters often provide larger immediate flow for multiple fixtures but consume energy to keep the tank hot.
- Versus other RV tankless units:
- The 60,000 BTU rating is high for RV tankless models, which helps in cold climates and when faster temperature recovery is needed.
- Flow rate of 2.4 GPM is competitive for RV use; some competitors advertise similar rates but may differ in temperature stability features and vibration handling.
- Retrofit door compatibility with Suburban models is a distinct advantage if you want a straightforward exterior fit.
When evaluating, match the unit’s flow and BTU to your typical usage patterns. If you rarely run more than one fixture at a time, this unit should serve you well. If you routinely need hot water for several uses at once, consider the implications of the 2.4 GPM rating.
Who this unit is best for
You should consider this heater if you:
- Own an RV with a Suburban 4- or 6-gallon heater door opening and want a tankless upgrade without cutting a new hole.
- Want reliable hot water in colder climates where incoming water temperature is low.
- Prefer a compact, space-saving water heating solution that eliminates a bulky tank.
- Value vibration-resistant components for frequent road travel and rough terrain.
- Prefer propane-powered systems with electric ignition over manual pilot systems.
You may want a different solution if you frequently run multiple high-flow fixtures at once or need a much higher continuous flow rate than 2.4 GPM provides.
Cost considerations
You’ll pay more upfront for a tankless system than for a simple replacement tank heater in many cases, but you may recoup savings through reduced propane use over time if your usage pattern suits tankless operation. Also account for potential professional installation costs, venting modifications, and any adapter parts needed for retrofit.
Factor in maintenance costs too—descaling and annual inspections are important, especially if you have hard water.
Warranty and support
You’ll get a two-year limited warranty from Furrion on this water heater, which covers defects in materials and workmanship under normal use. Keep your purchase documentation and registration information handy, and review the warranty terms for coverage specifics and required maintenance to maintain warranty validity.
Support from Furrion for replacement parts, installation guidance, and troubleshooting advice can be an asset if you run into questions during setup or use.
Real-world user considerations
You’ll find users appreciate the quick hot water start and the ability to retrofit into existing openings. Common pieces of feedback include praise for the Vortex Technology’s temperature stability and the robustness when driving on rough roads. On the other hand, some owners note that managing flow (using low-flow showerheads) improves the experience because the 2.4 GPM limit is reached quickly with older fixtures.
If you’re transitioning from a traditional tank, expect a learning curve in setting water flow and temperature to match your comfort level.
Frequently asked questions
You’ll likely ask certain questions when deciding on a tankless RV heater. Here are answers to common queries:
- Will this replace my Suburban 4/6 gallon heater without cutting a new hole?
- The door dimensions match Suburban 4/6 gallon openings, which simplifies the exterior fit. Check internal clearances and venting to ensure full compatibility.
- Can I run two fixtures at once?
- The unit’s max flow is 2.4 GPM. Running two fixtures may reduce outlet temperature unless both are low-flow.
- Is it safe in freezing weather?
- It operates at ambient temps down to 32°F, but you should still follow winterization best practices and consider supplemental freeze protection in extreme conditions.
- Do you need electricity?
- Yes, electric ignition requires a 12V supply for reliable startup and control.
- How often should I flush the system?
- Flush at least once a year; more often if you have hard water.
Troubleshooting checklist (quick reference)
You’ll find this checklist handy if you encounter common problems:
- No hot water: Check propane and 12V power, then check controller error codes.
- Low temperature: Reduce flow, check inlet water temperature, flush scale from heat exchanger.
- Fluctuating temperature: Inspect flow settings and mixing valve; make sure no one else opened a faucet.
- Strange noises: Check mountings for looseness and inspect for vibration-related issues.
If simple checks don’t resolve the issue, call a qualified RV technician.
Final recommendation
If you want a compact, powerful, and retrofit-friendly tankless heater that’s built for road life, the Furrion® RV Tankless Gas 60,000 BTU Water Heater – 16.14″ x 16.14″ White Door – 2.4 GPM – Vortex Technology steadies temperatures – Propane Gas-Powered Technology, Electric Ignition – 2021128847 is a solid choice. You’ll get quick hot water, good cold-weather performance down to 32°F, and technologies that stabilize temperature and resist road vibration. Just match its 2.4 GPM flow capabilities to your usage needs and plan for professional installation and regular maintenance for the best results.
If you need help deciding whether to retrofit this in your specific RV or you want a checklist for installers, you can ask for a tailored installation prep guide or a comparison checklist against a particular competitor model and I’ll help you plan it out.
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