The Instant Electric Tankless Water Heater delivers hot water in just 3 seconds, providing a steady and comfortable temperature whenever you need it. Designed with advanced safety features including leakage protection, dry heating protection, and IPX4 waterproofing, it ensures safe and reliable operation. Its compact, energy-efficient design makes it perfect for under-sink installation in kitchens and bathrooms, combining performance, durability, and modern style.
FlowHeat
🏆 #1 Electric Tankless Water Heater
- Instant Hot Water
- Advanced Safety Protection
- Energy Efficient Design
- Durable & Modern Build
30-Day Warranty Included
Free Shipping Included
30-Day Money Back Guarantee
That's how confident we are in your results. But if you're not thrilled, send it back and we'll refund your purchase.
Jason M.
I was surprised at how fast this heats up — literally within 3 seconds. Perfect for my bathroom sink and the temperature stays consistent. Very happy with the purchase!
Real People Real Reviews!
Sophia M.,
32
Verified Buyer
The compact design fits perfectly under my kitchen sink. It saves space and works efficiently without using too much electricity. Highly recommended for apartments.
FlowHeat
€46,00 €92,00
Purchased on Feb 14th, 2026
Daniel B.,
45
Verified Buyer
I feel confident using this because of the built-in safety features. The waterproof rating and automatic shut-off give me peace of mind. Works exactly as described.
FlowHeat
€46,00 €92,00
Purchased on Feb 24th, 2026
Chloe A.,
32
Verified Buyer
For the price, this heater performs incredibly well. Strong water pressure and steady hot temperature. Installation was straightforward too.
FlowHeat
€46,00 €92,00
Purchased on Feb 27th, 2026
Why Rouenoutlet Product
Why Rouenoutlet Product
Long-Term Value
A smart investment that pays for itself over time with its durability and efficiency.
Multiple Configuration Options
Customize your experience with various settings to meet your specific needs.
High Quality Materials
Made with premium materials that are built to last and deliver exceptional performance.
Easy to Use Design
Intuitive design makes this product simple to use, saving you valuable time and effort.
Frequently Asked Questions
What is this product used for?
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This instant electric tankless water heater is designed to provide hot water on demand for sinks, showers, kitchens, and small bathroom setups.
Can it be installed under the sink?
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Yes, its compact size makes it ideal for under-sink installation in kitchens and bathrooms.
How fast does it heat the water?
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The unit heats water within approximately 3 seconds, delivering instant hot water without the need for a storage tank.
What voltage does it require?
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This model operates on 110V power with a rated frequency of 50Hz and 3500W heating power.
Does it maintain a constant temperature?
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Yes, it is designed to maintain a stable and comfortable water temperature between 30–60°C (86–140°F).
Is it energy efficient?
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Yes, the tankless design heats water only when needed, helping reduce unnecessary energy and water consumption.
Is the unit safe to use?
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Yes, it includes multiple safety protections such as automatic power-off in case of leakage, dry heating protection, water-electricity isolation, and an IPX4 waterproof rating.
What material is the heater made of?
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The unit is made of durable ABS plastic and stainless steel for long-lasting performance and corrosion resistance.
Can it be installed under the sink?
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Yes, its compact size makes it ideal for under-sink installation in kitchens and bathrooms.
What voltage does it require?
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This model operates on 110V power with a rated frequency of 50Hz and 3500W heating power.
Is it energy efficient?
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Yes, the tankless design heats water only when needed, helping reduce unnecessary energy and water consumption.
What material is the heater made of?
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The unit is made of durable ABS plastic and stainless steel for long-lasting performance and corrosion resistance.
Our Customer Testimonials
Real experiences from real customers who love our products and service.
Modern and Durable Design
The stainless steel parts look sleek and feel solid. It doesn’t look cheap at all and blends nicely with my bathroom setup.
Perfect for Daily Use
We use it every day for washing dishes and quick showers. It heats instantly and maintains a comfortable temperature without sudden changes.
Energy Efficient Upgrade
I replaced my old tank heater with this and noticed lower energy consumption. No more waiting for hot water — very convenient and eco-friendly choice.
