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Propane Gas Tankless Water Heater - ORBEK Indoor Installation 100,000 BTU Up to 4.3 GPM - CSA Certified On-Demand Instant Hot Water Heater 3/4" NPT Connector Size

  • Based on 138 reviews
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Availability: Only 5 left in stock, order soon!
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Arrives Friday, Jun 6
Order within 56 minutes
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Style: Indoor Installation


Material Type: 100,000 BTU, Propane


Features

  • Endless On-Demand Hot Water: The Orbek tankless water heater propane provides up to 4.3 GPM and 100,000 BTU, serving 2-3 fixtures simultaneously for comfortable use throughout your home
  • Safety & Reliable: The Orbek propane tankless water heater indoor is CSA certified and packed with advanced safety features, including dry combustion protection, overheat protection, water leakage protection, flame failure protection, and high water pressure protection etc
  • Energy Efficient: Crafted from high-quality oxygen-free copper, the Orbek heat exchanger delivers superior heat transfer and corrosion resistance. It can adjust between three heating modes to meet seasonal hot water needs, saving energy costs for you
  • Compact Design: With a compact size of 20.5"H x 13.0"L x 7.0"W, On-demand hot water heater propane saves over 50% of space compared to traditional tank water heaters, fitting easily into most corners of your home
  • Stable Temperature Control: The built-in chip adjusts heating power 20,000 times per second, keeping water temperature stable within 1F for a comfortable shower experience
  • LED Digital Display: The Orbek propane water heater tankless features a clear screen for sensitive temperature adjustments between 95F and 149F. The power outage memory function ensures you won't have to reset the temperature repeatedly
  • Water Pressure Range: The Orbek tankless propane water heater is equipped with low water pressure start technology, allowing it to operate at water pressures ranging from 15 to 150 PSI, even in remote homes far from city centers. Additionally, the operational noise is very low, ensuring it will not disturb your family
  • Easy to Install: Applied with a standard 3- inch OD vent, 3/4" NPT connector size and 120V AC voltage. it's compatible with most homes. Professional installation is recommended for better performance and safety

Brand: Orbek


Product Dimensions: 13"W x 20.5"H


Special Feature: Four Seasons Function, 24/7 Customer Service, 2 & 5 Years Warranty, CSA Certified with Many Protections, Compact Design & Easy Installation See more


Color: White


Wattage: 17 Watt-hours


Brand: ‎Orbek


Product Dimensions: ‎13"W x 20.5"H


Special Feature: ‎Four Seasons Function, 24/7 Customer Service, 2 & 5 Years Warranty, CSA Certified with Many Protections, Compact Design & Easy Installation


Color: ‎White


Wattage: ‎17 Watt-hours


Voltage: ‎120 Volts (AC)


Maximum Flow Rate: ‎4.3 Gallons Per Minute


Maximum Temperature: ‎149 Degrees Fahrenheit


Efficiency: ‎High


Maximum Operating Pressure: ‎150 Pound per Square Inch


Maximum Pressure: ‎150 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎Orbek


Item Depth: ‎7 inches


Item Weight: ‎25.5 pounds


Country of Origin: ‎China


Item model number: ‎HW100


Special Features: ‎Four Seasons Function, 24/7 Customer Service, 2 & 5 Years Warranty, CSA Certified with Many Protections, Compact Design & Easy Installation


Included Components: ‎Tankless Water Heater x 1 User's Manual x 2 (English and French Version) Quick Installation Poster x 1 Assembly Kit x 1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: December 22, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Wow nice hot water
Style: Indoor Installation Material Type: 80,000 BTU, Natural Gas
Well I surprised by the size and the amount of hot water I get. It is very easy to install. And for the price it fit my budget and gave me the hot water that is needed. I have had it for 6 months now and it works great. The quality looks good and it's very easy to change the temperature at anytime with a click of a button. Haven't had any problem yet. Very durable and looks great. ... show more
Reviewed in the United States on January 7, 2025 by GsDead

  • Great water heater. EXCELLENT Customer Service
Style: Outdoor Installation Material Type: 120,000 BTU, Propane
I’ve been on Amazon since 1998 and this is the best 3rd party seller I have ever encountered. After buying the water heater there was an issue with the igniter. I emailed this seller and got an immediate response on what to test and how to test it. If it failed they said send it back and we will swap asap. I did not have to buy their water heater again when I return this one. I chose to buy it because prior to purchasing the first one. I did some research and it seemed to be a very good in-line water heater for that price range. I felt good about my purchase. When there was a minor issue, I was not deterred so I thought I would purchase it again. Throughout the way, they remain in constant contact with me even when I didn’t. This water heater was installed in a home and while I was returning it, there was no hot water. I emailed them my situation and they received the water heater at 10 AM on a Tuesday. They credited my account by 11 AM that same day. I ordered the replacement that same day, and they shipped the replacement all in the same day. The new unit arrived two days later. I installed it and it has been operating now flawlessly for over a month. It’s a very good machine. I highly recommend this water heater and the seller. They really stand behind their product and their communication skills are excellent. ... show more
Reviewed in the United States on February 8, 2025 by santa_cruz_man

  • Fairly straightforward install. Heats very fast, easy controls
Style: Indoor Installation Material Type: 80,000 BTU, Propane
I’m excited this is my first tankless water heater. Was fairly straightforward to install. I had it done since I wasn’t the most experienced with plumbing lines. Got a feeling this propane heater is going to work wonders on my electric bill. Something’s I’ve found so far , system heats really fast but takes the lines about a minute to reach my outlet where I’m using the water shower, kitchen sink etc. once it’s there very hot. Did try reducing flow of water in shower and notice if you slow the gpm to much it does indeed shutdown and water gets cold. I’ve taken fairly long showers for me and water stays constantly hot. So far very happy. This will also keep me from having to use my 220 heater and it’s great for my supplemental/ backup solar which supports only 120v. ... show more
Reviewed in the United States on January 24, 2025 by Lee Simmons

  • Ice cold shower? E8 code: how to make it work
Style: Indoor Installation Material Type: 100,000 BTU, Propane
E8 code left cold showers increasing in frequency. Exhaust temperature increasing over time. Finally dropped to 30 seconds of hot water at a time. 2 months of use before it was thrown away. Last Japanese made hot water heater lasted 20 years. Unit works well after you program it. Installed correctly with 3" vent pipe you may see "E8" code displayed when you jump out of your ice cold shower. This is the Fan speed exceeding programmed maximum of '74' (no units displayed). 1. turn display off with power button, 2. unplug, 3. re-plug and after 2-3 seconds press the down arrow, 3. PP should appear on display, 4. press power button you will be in the programing parrameter list- use up arrow to navigate to Hc= fan speed, select by pressing power button, increase from 74 to 95 (max is 99), press the power button to exit to main menu, use up arrow to find QU (looks a lot like 9U because of poor pixelation). press power button to select, This saves the setting changes. press power again if you aren't back to the general temperature display. Now your shower will stay warm. :) ... show more
Reviewed in the United States on January 23, 2025 by Just make it camo

  • Continuous hot water
Style: Indoor Installation Material Type: 100,000 BTU, Natural Gas
Got this when our old tanked water heater quit working. We were able to do self install. It provides plenty of hot water for dishwasher or shower. I would recommend
Reviewed in the United States on February 15, 2025 by Kindle Customer

  • 120 thousand BTU propane
Style: Outdoor Installation Material Type: 120,000 BTU, Propane
installed the unit set the temperature at 1:40 and it ran for a day or so and then I got an F7 code solenoid valve failure so I checked filter flushed it put it back together work good for a couple of days and then the same thing so after multiple hours of research, I found that setting the unit at 1:40 may not be the best solution set it at 1:20 which is where it’s at nowwe’re gonna run it for a couple days and see how she works other than that. Great hot heater. ... show more
Reviewed in the United States on February 16, 2025 by David P.

  • So far so good
Style: Outdoor Installation Material Type: 120,000 BTU, Propane
I installed a couple weeks ago and it’s working as expected. One issue I had was with not having enough water flow for my shower. The water would go from hot to warm to hot etc…I took apart the shower head and removed the water saver plug thing and got more water flow which is exactly what this unit needed. The flow rate is important for consistent water temperature and any restrictions like what my shower head had will create issues. Working great now and will report back if any issues come up. ... show more
Reviewed in the United States on December 25, 2024 by Scott S

  • Tankless Water Heater
Style: Indoor Installation Material Type: 80,000 BTU, Natural Gas
So glad i bought this, our full size water heater quit on us so we decided to try a Tankless Water Heater and it was so much easier hanging this on the wall rather than lugging around a huge water heater every time, and we got nice hot water lol
Reviewed in the United States on January 18, 2025 by Bill M

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