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Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater

(4.7/5.0 stars)

Flex Temp® On Demand Tankless Water Heater

$477.00
$530.00
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No more waiting for hot water to recover. This tankless, on-demand water heater lets you simultaneously wash dishes, do laundry, and take endless hot showers without hot and cold water fluctuations. Perfect for full-time RVers or large groups.
Select Color

Free Shipping

Free Delivery to the US

Money Back Guarantee

60-Day Free Returns

Warranty

1-Year warranty policy

After-Sale Service

US Based Support Team

From RV Mobile Power LLC - the Original Equipment Manufacturer Trusted By

Flex temp vs. them

Better Features. Better Price. Better Choice.

FLEX TEMP

THE "OTHER GUYS"

Quick Start
Heats to target temp in under 5s

Retrofit Ready
Compatible with any RV

Excellent Performance
90%+ thermal efficiency

Temperature Stability
Patented flow restrictor 

Auto Shut-Off
CO2 / propane detection

Superior Safety
Anti-scald and cold protection

Free Shipping

Anywhere in the US

Promo Price
Limited Time July 4 Promo!

$477 $530

$553
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60-day money-back guarantee included 

What Our Customers Are Saying

Designed for Easy DIY Installation by Anyone.

(But don't worry, we'll be here to help.) 

Download Owner's Manual

Download Owner's Manual

SPEED

Consistent Hot Water
in Under 5 Seconds. 

SAFETY

Automatic Carbon Monoxide and 
Propane Leak Shutdown

SIMPLICITY

Compatible with any RV. 

Do-it-Yourself Installation.

  • features

  • specifications

  • includes

Features

Title

ON DEMAND OUTPUT

55,000 BTU

ADVANCED SAFETY

Carbon monoxide and propane leak sensors

TEMPERTURE PROTECTION

Anti-scald and anti-cold systems for user safety

MAXIMUM FLOW

Patented Technology for the Steady Flow Rate

PERFORMANCE

2.8 L/Min minimum flow for ignition

REMOTE CONTROL

Digital remote for precise control

RETROFIT READY

Perfect for replacing tanked or tankless models

Specifications

Title

DOOR DIMENSIONS

14 5/8” (H) x 14 7/8” (W)

LENGTH WITH DOOR

17” x 12 9/16” (W) x 12 9/16” (H)

LENGTH WITHOUT DOOR

16.5” x 12 9/16” (W) x 12 9/16” (H)

APPLICABLE WATER PRESSURE

0.01-0.75MPa

ESTIMATED MAX BTU OUTPUT

55,000

EXHAUST MODE

Forced Exhaust

EXHAUST PIPE MATERIAL

⦶60

IGNITION MODE

Pulse Electronic Ignition

JOINT: WATER INLET AND OUTLET

1/2 NPT, Gas 3/8 NPT

MINIMUM FLOW FOR IGNITION

2.8L/min

NET WEIGHT

24 lbs (10.89 kg)

POWER SUPPLY REQUIRED

DC 12V

RATED GAS PRESSURE (LPG)

2800Pa

RATED HEAT LOAD

17kW

RATED POWER CONSUMPTION

32W

RATED WATER PRODUCTION CAPACITY

8.5kg/min (∆t=25k)

Includes

Title

55,000 BTU ON DEMAND WATER HEATER

INSTRUCTION MANUAL INCLUDED

REMOTE LCD DISPLAY

1-YEAR WARRANTY

US BASED CUSTOMER SERVICE

60-DAY FREE RETURNS

Wherever the road takes you,
hot water is seconds away.

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Flex Temp® On Demand Tankless Water Heater
SALE 10% OFF

(4.7/5.0 Stars)

Flex Power On Demand Water Heater

$477.00
$530.00
Select Color
Title

Free Shipping Anywhere in the United States

60-Day Money-Back Guarantee

1-Year Warranty

Frequently Asked Questions

Still have questions? Send us your questions by filling out the form below, we will be happy to assist you.

Thanks for contacting us. We'll get back to you as soon as possible.

Email *

Question *

Is this water heater compatible with my RV?

Title

Most likely, yes. The RVMP Flex Power On-Demand Water Heater comes with a universal retrofit kit that’s designed to fit the majority of standard RV cutouts and plumbing configurations. If you’re unsure, our U.S.-based support team can help verify fitment or guide you through a quick compatibility check before you buy.

Is it easy to install?

Title

Yes! The RVMP Flex Power On-Demand Water Heater is designed for quick installation with basic hand tools. It includes a retrofit kit that fits most RV models with minimal hassle. Not comfortable installing it yourself? No problem, our U.S.-based support team is happy to connect you with a trusted local dealer for professional installation.

Do you offer support on installation and after-sale issues? 

Title

Absolutely. Whether you're installing it yourself or need help down the road, our U.S.-based support team is here for you. We can walk you through setup, troubleshoot any issues, or connect you with a trusted dealer if you prefer professional installation. We've got your back—before and after the sale.

Do you provide a warranty?

Title

Absolutely. Every RVMP Flex Power On-Demand Water Heater comes with a 60-day money-back guarantee and a 1-year warranty covering manufacturing defects. If something’s not right, we’ll make it right, no long forms, no runaround. Just real support from a real team.

What is your return policy? 

Title

We offer a 60-day money-back guarantee—no questions asked. Prefer to exchange instead? We’ve got you covered there too. Our goal is to keep every customer on the road, not stuck in the cold. The mountains are calling—and so is your hot water.

How can I contact you before buying?

Title

We’re happy to help! You can DM us on Instagram [@myflexpower] or shoot us an email at info@rvmp.com. Whether it’s a fit check or feature question, our U.S.-based team is here to make sure you get the right gear for your next adventure.
Title

Copyright © 2025 RV Mobile Power LLC. 

830 Kinnear Rd. Columbus OH 43212

All Rights Reserved.
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater
Flex Temp® On Demand Tankless Water Heater

Flex Temp® On Demand Tankless Water Heater

$477.00