Tankless Water Heater, Novieex On Demand Water Heater Natural Gas, Up to 3.6 GPM, 86,000 BTU Instant Hot Water Heater with LED Display, Indoor Installation, 2-3 Point Use for Family Bathroom Kitchen
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Availability:
In Stock.
Arrives
Wednesday, Jun 3
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Color: Pearl Grey
Set name: 3.6GPM Nature gas
Features
- Note This is 3.6GPM natural gas model. Gas rated pressure: 8.04" w.c. (2.0 kPa), Gas Inlet & Cold Water Inlet & Hot Water Outlet:NPT 1/2", Power Supply: 110V-120V AC/60Hz, Water Pressure Range: 1.5-116 psi (0.01-0.8MPa)
- Reliable Hot Water on Demand With 86,000 BTU power, this on demand water heater delivers up to 3.6 GPM instant hot water. You can comfortably run a shower, kitchen faucet, and bathroom sink simultaneouslyall without any noticeable temperature drop.
- Precise Temperature Control Enjoy consistent water temperature with a wide adjustable range from 95F to 149F, 1F temperature control . The built-in digital thermostat of the tankless water heater ensures your water stays at the desired setting, delivering comfort and safety for every shower and household task.
- High Efficiency, Lower Bills Say goodbye to the energy and electricity waste of traditional heaters that reheat water nonstop. By leveraging a selectional burner system, our propane gas hot tankless water heater precisely adjusts the flame for the water temperature. You will see a noticeable drop in your energy bills, making it an efficient and cost-effective choice.
- Compact & Space-SavingCompared bulky traditional tanks. Our on demand water heater is wall-mounted, saving over 50% of space and blends seamlessly into utility rooms, basements, or closets. Its sleek appearance and LED touchscreen interface allow for easy and intuitive operation.
- All-Round Security SystemOur built-in multi-protection system safeguards against gas leaks, overheating, dry-firing, and freeze damage, offering ultimate safety and comfort for families with temperature-sensitive elderly or kids with delicate skin.
- Usage Reminder For safe and efficient use, this indoor on demand water heater requires natural gas and professional installation by a licensed technician using 1/2" NPT fittings (Exhaust pipe included).
Brand: NOVIEEX
Capacity: 3.6 Gallons
Power Source: Natural Gas
Special Feature: Anti-Freezing Protection, Dry Combustion Protection, Flame Failure Protection, LED Display, On Demand Water Heater See more
Color: Pearl Grey
Power Source: Natural Gas
Special Features: Anti-Freezing Protection, Dry Combustion Protection, Flame Failure Protection, LED Display, On Demand Water Heater
Voltage: 120 Volts (AC)
Flow Rate: 3.6 Gallons Per Minute
Maximum Temperature: 149 Degrees Fahrenheit
Heat Output: 86000 British Thermal Units
Mount Type: Wall
Is Electric: No
Capacity: 3.6 Gallons
Item Weight: 19.84 Pounds
Material Type: 3.6GPM 86000BTU/h
Brand Name: NOVIEEX
Model Number: RS-13
Manufacturer: NOVIEEX
Included Components: Flue Pipe, On Demand Water Heater
Item Type Name: tankless water heater
Color: Pearl Grey
Style Name: 3.6GPM Nature gas
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jun 3
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Color: Pearl Grey
Set name: 4.3GPM Nature gas
I’m in the process of building out a small DIY tiny home on my property here in Central Florida for guests, and this tankless water heater ended up being a really solid choice. Space savings is huge. In a tiny home, every inch matters, and this unit mounts cleanly on the wall without taking up valuable storage space. A traditional tank just wasn’t realistic for what I’m working with and would have cost me a closet (the audacity!) Performance wise, it does exactly what I need it to do. Hot water comes on quickly and stays consistent for normal use like a quick shower, sink, etc. It’s not overkill, but for a small setup like this, it’s more than enough. I also like that it only heats water when it’s being used. Down here in Florida, I don’t want something constantly running up the electric bill or adding extra heat into a small space. This feels a lot more efficient and practical. Install was straightforward if you’ve got some basic knowledge, but I had a professional handle the gas hookup just to be safe. They had it in and configured in less than 15 minutes. Once it was in, setup was simple and the controls are easy enough that guests won’t have to mess with anything and even my non tech savvy husband could figure out how to set the temperature. Overall, this is a great option if you’re doing a tiny home, guest house, or even a workshop setup. It’s compact, reliable, and does exactly what you need without a lot of extra fuss. Definitely worth it for a practical build.
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Reviewed in the United States on March 26, 2026 by Meggerz
Color: Pearl Grey
Set name: 4.3GPM Nature gas
I’m really happy with this tankless water heater so far! The Novieex natural gas tankless water heater heats water quickly and provides a steady supply of hot water without having to wait forever. It’s been a great upgrade for our home, especially for daily use in the bathroom and kitchen. One thing I really like is how compact and space-saving it is compared to a traditional water heater. The LED display is easy to read, and the unit feels modern and user-friendly. It does a great job keeping up with multiple uses, and the 4.3 GPM / 100,000 BTU performance seems perfect for a smaller household or a 2–4 point use setup. Installation was straightforward for a professional, and once it was up and running, the difference was noticeable right away. Having hot water on demand is so much more convenient, and I also like the idea of not heating a giant tank of water all day. Overall, this is a great value if you’re looking for an efficient, reliable indoor tankless water heater for everyday family use. I would definitely recommend it.
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Reviewed in the United States on March 29, 2026 by José carballo
Color: Pearl Grey
Set name: 3.6GPM Nature gas
This Novieex tankless water heater has been a great upgrade for my home. It heats water quickly and provides a steady, reliable flow without running out, even when used in both the bathroom and kitchen. We mainly use it for 2-3 outlets (shower and kitchen sink), and it delivers hot water almost instantly with no waiting. The unit is compact, quiet, and fits neatly indoors without taking up much space, freeing up room compared to our old tank system. Installation was straightforward for our plumber, and overall, it’s much more space-efficient. It also includes all the necessary accessories along with a clear, detailed user guide that explains installation and features well. The LED display is bright and easy to use for adjusting settings.
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Reviewed in the United States on April 29, 2026 by Alix
Color: Pearl Grey
Set name: 3.6GPM Nature gas
My gas water heater went out and I was flipping out because to replace the tank style water heater was outrageous right here at Christmas! I ordered this thinking it will do until we can afford a new one. I will never spend money on another tank water heater again. We ordered this tankless for around $175 and boy was it worth the money.. a top quality water heater! Even if it only lasts a year I cannot complain! It is worth every penny and more. It doesn’t have to be hard wired for the electric parts which was a plus for us. We already had the venting hole in the wall so that made it easy… I would say if you don’t have the exhaust hole already that would be the only hard step for install. The rest was a breeze to hook up! And since I am getting older not having to get in the floor to figure out what’s going on with a tank water heater is another plus! It automatically turns on when you turn on the hot water. Super hot water.. we have it set on 120 and you can turn it up higher than that but it is not needed. Our water pressure is weird and sometimes low but we haven’t had any issues with not getting hot water so far. Would definitely recommend this water heater.
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Reviewed in the United States on December 20, 2025 by up all night
Color: Pearl Grey
Set name: 3.6GPM Nature gas
I purchased this tankless water heater to add to my outdoor shower and it has been such a great upgrade. I really love that this Portable water heater runs off of propane, It was perfect for the campsite shower. The installation and setup of this heater was so easy. The hot and cold water are easily adjusted with the simple turn of a knob on the front of the heater. I was really impressed that this portable heater came with multiple shower heads. We're able to just hook up the shower head for the shower and get right to using it. The pet head will also come in so handy come spring time an Fido is playing in the mud at the campground!
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Reviewed in the United States on December 30, 2025 by Customer Review
Color: Pearl Grey
Set name: 4.3GPM Nature gas
Easy to install water heater!! We got this installed in the basement and has a lot of storage for hot water. Also it’s small enough that’s it’s not a huge eye sore. Doesn’t leak at all!
Reviewed in the United States on April 2, 2026 by Payton Herken
Color: Pearl Grey
Set name: 4.3GPM Nature gas
Easy installation, with temperature control, works very well, I tried it to see its operation and its work system very good, very effective, with an internal water supply keeping it warm, you can control the temperature and graduate to taste, with the screen so you can monitor and see how it works.
Reviewed in the United States on March 12, 2026 by Ramon Navarro
Color: Pearl Grey
Set name: 3.6GPM Propane
It is a great product! Easy to install and use!
Reviewed in the United States on March 29, 2026 by R. J. Atkins