Will the 55,000 BTU RV Tankless Water Heater fit in a 16×16 inch cutout?

You must confirm your cutout includes the required clearance zone for the exhaust venting—the system that moves hot air away from the unit—and the intake area. Measure your available space to ensure the mounting brackets have enough room to secure the unit to your chassis.

OEVANT 55,000 BTU tankless water heater dimensions and flow rate

The OEVANT Tankless Water Heater provides 55,000 BTU of heating capacity and reaches 123F in under 25 seconds. We selected this model for our full review because it offers a 3.9 GPM flow rate, which provides enough hot water for a family of four or a van life shower. Because RV tankless water heater installs often involve tight cabinetry, verifying the 13″x13″ footprint is vital to ensure the unit doesn’t protrude into your living space or block access to other components. Does your current mounting area have enough depth for the front-mounted water outlet? The design places the connection point on the front face to keep the plumbing profile slim. While the unit is rated for 12V DC power, you should verify that your specific wiring layout allows for the mounting hardware to sit flush against the wall without hitting internal ribs or brackets.

For a detailed breakdown of the specs, see our full OEVANT Tankless Water Heater review.

What to Check Before Buying the OEVANT Tankless Water Heater

Confirm these spatial requirements before ordering to ensure a successful installation by a qualified technician:

You can see how it stacks up against rivals in our OEVANT Tankless Water Heater comparison.

• Verify that your 16×16 inch cutout provides enough clearance for the exhaust venting and air intake to prevent overheating.
• Measure the distance from your cutout to any combustible surfaces to ensure you maintain a safe clearance zone.
• Confirm that the mounting brackets have a clear path to the chassis studs without being obstructed by internal RV framing.
• Check that the orientation of your mounting surface allows for the front-mounted water outlet to reach your plumbing lines.

Choosing the Right RV Tankless Water Heater

This propane-powered device, which is a compact heater that provides hot water on demand, is designed for standard motorhomes and travel trailers. Buyers looking for extreme performance at high altitudes should consider alternatives, as this 55,000 BTU unit does not meet the 60,000 BTU requirement for consistent flow at 10,000 feet. If you need a high-output system for a luxury build with multiple high-flow fixtures, you may want to look at professional-grade options that offer higher BTU ratings.

We provide a final summary of the performance in our OEVANT Tankless Water Heater final verdict.

If you need a reliable hot water source for a standard RV setup and have a 13″x13″ clearance area, the OEVANT Tankless Water Heater is a practical choice for your upgrade.

Reviewed by the Refrigerant Recovery Pro editorial team. Refrigerant Recovery Pro writes these guides from the 50 most-reviewed rv tankless water heater listings in our retail dataset, not from manufacturer copy.