The Furrion Vibrant Tankless is the brand's flagship RV tankless water heater — a compact propane-fired tankless unit that replaces traditional RV tank water heaters with on-demand heating, eliminating the recovery wait and tank storage volume that limits standard RV water heaters.
What makes Vibrant Tankless suitable for RVs
Residential tankless heaters typically don't fit RV bay openings, draw too much gas for RV propane systems, or lack the compact form factor RVs require. Vibrant Tankless solves all three:
- Sized for typical RV water heater bay openings (matches Furrion's tank model dimensions)
- BTU input scaled to RV propane regulator output (typical 35,000–60,000 BTU)
- Compact design with integrated controller
- 120V electrical for control electronics (not for heating — propane handles heat)
Capacity and flow rate
Vibrant Tankless delivers approximately 1.5–2.5 GPM at 70°F temperature rise — adequate for single-fixture shower or sink use. Simultaneous shower + sink demand may exceed capacity in cold-inlet scenarios. Sizing is appropriate for typical RV demand patterns; not appropriate for residential whole-house substitution.
Where Vibrant beats standard RV tank
- No "running out of hot water" during longer showers
- No tank recovery wait time
- Less propane consumption during low-use periods (no standby reheating)
- Lighter weight than equivalent tank (5–8 lbs lighter for typical model)
- Smaller bay footprint allows other equipment installation
Where standard tank still wins
- Cold-inlet water (40°F or below) reduces tankless capacity dramatically
- Multi-shower simultaneous demand exceeds tankless capacity but tank buffer can handle
- Easier service — tankless requires more diagnostic skill
- Lower upfront cost
- Better warranty in some configurations
Installation considerations
Vibrant Tankless installs in the existing RV water heater bay, replacing the tank entirely. Required:
- Propane line connection (verify size and pressure)
- 120V control supply (most RVs already have this from existing tank install)
- Water inlet and outlet connections
- Vent termination through bay exterior
- Mounting hardware appropriate for the unit's weight
Cold weather operation
Vibrant Tankless does not have built-in freeze protection during off-periods. For winter storage, full winterization with antifreeze is required just like tank units. For winter camping with the RV in use, the unit's continuous operation prevents freeze, but a freeze event during a 3-day unattended period in cold weather can damage the heat exchanger.
Cold-water sandwich on tankless RVs
Like all tankless heaters, Vibrant produces a brief cold patch when hot draws stop and restart. In an RV with short pipe runs, this is less noticeable than residential — but it's not zero. Users new to RV tankless sometimes complain about this; once familiar with the behavior, most adapt by maintaining steady flow during showers.
Maintenance schedule
Annual: descaling (in hard-water campsite use, more frequent), burner inspection, flame sensor cleaning, gas pressure verification. Quarterly: inlet screen cleaning. Before each trip: visual inspection of all connections, verify electrical and propane both functional.
Lifespan
Vibrant Tankless in typical RV service achieves 8–12 years. Heat exchanger is the most expensive component; replacement runs $300–500. Most failures are flame sensor (cheap fix), control board (mid-range), or heat exchanger (expensive — typically pushes toward whole-unit replacement decision).