ONSEN
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Onsen - 10L Portable Tankless Propane Water Heater With Pump & Accumulator Tank - Dual Ignition - Instant Hot Water - Outdoor Use Only - With LED Screen, Premium Shower Head, 12-Volt Alligator Clips
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Onsen - 10L Portable Tankless Propane Water Heater With Pump & Accumulator Tank - Dual Ignition - Instant Hot Water - Outdoor Use Only - With LED Screen, Premium Shower Head, 12-Volt Alligator Clips
The perfect camp and cabin companion! The Onsen 10L Portable Tankless Water Heater with 3.0 RV / Marine Diaphragm 12V Water Pump and 1.0L Accumulator Tank allows you to enjoy a hot shower outside anytime, anywhere.
Onsen - 10L Portable Tankless Propane Water Heater With Pump & Accumulator Tank - Dual Ignition - Instant Hot Water - Outdoor Use Only - With LED Screen, Premium Shower Head, 12-Volt Alligator Clips

Onsen - 10L Portable Tankless Propane Water Heater With Pump & Accumulator Tank - Dual Ignition - Instant Hot Water - Outdoor Use Only - With LED

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The perfect camp and cabin companion! The Onsen 10L Portable Tankless Water Heater with 3.0 RV / Marine Diaphragm 12V Water Pump and 1.0L Accumulator Tank allows you to enjoy a hot shower outside anytime, anywhere.
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What Stands Out

Instant Hot Water
Enjoy immediate hot water on demand with the Onsen tankless heater, perfect for outdoor activities and ensuring a comfortable experience without waiting for heating.
Portable Design
Lightweight and portable, this 5L water heater is easy to transport, making it an excellent companion for camping trips, outdoor showers, and various outdoor events.
Dual Ignition System
The dual ignition system ensures reliable performance and safety, providing peace of mind while using propane for hot water during your outdoor adventures.

Product Details

Get instant hot water outdoors with the Onsen 10L Portable Tankless Water Heater. With dual ignition, LED screen, and premium shower head. Order now on Ubuy Australia.
Power SourceLiquid Propane
Special FeaturesPortable
Voltage12 Volts
Flow Rate10 Liters Per Minute
EfficiencyHigh
Maximum Pressure8 Bars
Mount TypeWall
Is ElectricNo
Capacity10 Liters
Item Dimensions W x H13.43"W x 25.83"H (34.1 cm)
Material TypeMetal
Brand NameONSEN
Model NumberON-10L-DP30-ACT1L
ManufacturerONSEN
UPC850068429073
Global Trade Identification Number00850068429073
Included Components1.0L Accumulator, 12V Water Pump
Item Type NameTankless Water Heater
ColorWhite
Style Name10L + Pump & Accumulator
BrandONSEN
Product Dimensions (L x W x H)13.43"W x 25.83"H (34.1 cm)
Special FeaturePortable

Who Should Buy?

Suitable For
  • Camping Enthusiasts

    Ideal for outdoor camping, providing instant hot water without the need for complex setups or large tanks.

  • Outdoor Events

    Perfect for events like festivals or fairs where hot water is needed, ensuring comfort without complicated installations.

  • Emergency Preparedness

    Great for emergency situations where traditional hot water sources might be unavailable, offering reliable heating on the go.

Not Suitable For
  • Permanent Installations

    Not suitable for fixed installations as it is designed specifically for portable, outdoor use only.

Product Description

Onsen - 10L Portable Tankless Propane Water Heater With Pump & Accumulator Tank - Dual Ignition - Instant Hot Water - Outdoor Use Only - With LED Screen, Premium Shower Head, 12-Volt Alligator Clips

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Customer Questions & Answers

  • Question: What is the main feature of the Onsen 5L Portable Tankless Propane Water Heater?

    Answer: The Onsen 5L Portable Tankless Propane Water Heater is designed for instant hot water supply without the need for a storage tank. It's equipped with a dual ignition system that ignites the burner when water flow starts, ensuring hot water is available right when you need it. This makes the unit ideal for outdoor activities like camping, picnics, or even car washes, where quick access to hot water is essential.
  • Question: How does the accumulator tank benefit the Onsen water heater system?

    Answer: The accumulator tank in the Onsen water heater helps maintain water pressure and provides a consistent flow of hot water. It allows the heater to operate more efficiently by storing heated water that can be quickly accessed. This is particularly useful when the heater is used intermittently, as it prevents pressure drops and ensures a steady delivery of hot water, enhancing the overall user experience.
  • Question: Is the Onsen water heater suitable for indoor use?

    Answer: The Onsen 5L Portable Tankless Propane Water Heater is specifically designed for outdoor use only. This safety feature is crucial as it operates with propane, which can produce carbon monoxide if used in enclosed spaces. For outdoor camping, tailgating, or outdoor cleaning tasks, this unit can offer the convenience of hot water while adhering to safety regulations.
  • Question: What type of fuel does the Onsen water heater use?

    Answer: The Onsen water heater operates on propane fuel. Propane is effective for heating water quickly and is widely available in portable tanks. This feature makes it a suitable choice for users who need a portable, reliable hot water solution when electricity is not accessible, such as when camping or during outdoor events.
  • Question: How does the dual ignition system work?

    Answer: The dual ignition system of the Onsen water heater offers two methods to ignite the propane burner: a piezo igniter or a battery-operated ignition. This enhances reliability, ensuring the heater can be activated easily regardless of environmental conditions. Whether you're using it during a chilly evening outdoors or in windy conditions, this system provides peace of mind that you can always access hot water.
  • Question: What is the temperature range of the Onsen water heater?

    Answer: The Onsen 5L water heater provides hot water temperatures that can reach up to 75°C (approximately 167°F). Users can adjust the temperature according to their requirements, making it suitable for various applications like rinsing dishes, showering, or even as a water source for outdoor cooking. The ability to customize temperature enhances its versatility.
  • Question: Can you use the Onsen water heater at high altitudes?

    Answer: Yes, the Onsen 5L Portable Tankless Propane Water Heater is designed to function effectively at high altitudes. Many traditional water heaters may struggle with reduced atmospheric pressure at elevation, but this unit's ignition technology and burner configuration enable it to perform well, providing a reliable source of hot water for outdoor adventures in mountainous areas.
  • Question: How long does it take for the Onsen water heater to heat water?

    Answer: The Onsen water heater can heat water on demand almost instantly, with hot water available within seconds of turning on the tap. This is particularly advantageous for users who need quick access to hot water, whether for washing hands or cooking. Its efficient heating capability means you'll spend less time waiting and more time enjoying your outdoor activities.
  • Question: What are some common uses for the Onsen portable water heater?

    Answer: The Onsen 5L Portable Tankless Propane Water Heater is perfect for various outdoor situations including camping trips, RVing, outdoor showers, and cleaning vehicles. Its lightweight and portable design allows for easy transport, making it an excellent companion for outdoor enthusiasts who desire the comfort of warm water no matter where they are.
  • Question: Where can I buy the Onsen 5L Portable Tankless Propane Water Heater?

    Answer: You can buy the Onsen 5L Portable Tankless Propane Water Heater at Ubuy in Australia. Ubuy specializes in a wide range of products, ensuring you can easily find and purchase this efficient outdoor heating solution along with many other home and outdoor essentials.

ONSEN Water Heaters ON-10L-DP30-ACT1L Editorial Review

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“Promt delivery. Seems like a good product.”

22 July 2026 · via Trustpilot
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“It was the best service ever received by any company from my online shopping experience in the last 10yrs”

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“so easy to order delivery was way earlier than i expected”

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“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”

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“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”

17-Jul-26 · via Trustpilot
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Features & Benefits

  • Portable tankless water heater with 12V water pump and accumulator tank
  • Heats freezing water into instant hot water on demand
  • Dual ignition option with batteries or 12V power source
  • Suitable for outdoor, off-grid use
  • LED screen for precise water temperature and battery life
  • Includes premium shower head with stainless steel hose

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