Does the Kohree RV Tankless Water Heater require a high water pressure to operate?

You must confirm your RV’s plumbing can maintain this pressure before installation to ensure the unit functions correctly. Check your system’s pressure at the point of use to verify it exceeds this 1.45 PSI threshold.

Kohree KR5511 requires consistent water pressure to prevent flame out

This 60,000 BTU propane-powered unit—a wall-mounted heater that provides instant hot water—relies on a pressure switch to detect water flow before activating the heating element. For RV owners, ensuring consistent pressure is vital because a drop in flow can cause the unit to shut off or provide insufficient hot water during a shower. We selected the Kohree KR5511 for this review because it offers a high BTU output while maintaining a low pressure requirement among the RV water heaters we evaluated. The unit uses a flow sensor to monitor volume and a heat exchanger to transfer heat from the propane flame to the water. If your plumbing lacks the necessary pressure, you may face a “flame out” where the unit cycles off repeatedly. Failing to verify your pressure before purchase can result in a costly return or a non-functional installation.

You can find the technical specifications in our Kohree KR5511 spec breakdown.

What to Check Before Buying the Kohree KR5511

Before purchasing, verify these technical requirements to ensure the heater integrates with your existing RV setup:

For common user questions, see the Kohree KR5511 review FAQ.

• Confirm your plumbing provides a consistent flow rate to support the 2.9 gallons per minute output.
• Verify your ignition system is compatible with a 12 Volts (DC) power supply.
• Ensure your plumbing layout avoids sharp bends or restrictive adapters that create turbulence before the flow sensor.
• Check that your mounting area provides the required 15.16″W x 16.14″H clearance for the unit.

Comparing the Kohree KR5511 to Other RV Water Heaters

The Kohree KR5511 is designed for users who prioritize a high 60,000 BTU output and a low pressure requirement. If you are installing the unit in a setup with restricted water flow or a complex plumbing layout, this model’s 2.9 GPM flow rate and 1.45 PSI minimum are key specifications. Buyers who require a specific high-volume output for large families might still look at alternative high-end professional standards that offer higher flow capacities. However, for most RV applications, this unit provides a balance of power and ease of integration into standard 12V DC systems.

For specific installation requirements, see every rv tankless water heater with 18×18 door.

If you need a high-output heater that operates reliably on low-pressure systems, the Kohree KR5511 is the right choice for your RV.

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.