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

4.2/5
Product ID: 617864686
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Details

  • Brand
    Orbek
  • Product Dimensions
    13"W x 20.5"H
  • Special Feature
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  • Color
    White
  • Wattage
    17 Watt-hours
đź’§4.3 GPM flow rate
🔥100,000 BTU power
🛡️CSA certified safety

Description

🔥 Instant Hot Water, Zero Wait — Elevate Your Home Comfort!

  • ADVANCED SAFETY SUITE - Enjoy peace of mind with dry combustion, overheat, leakage, flame failure, and high-pressure protections.
  • ENDLESS HOT WATER FLOW - Serve 2-3 fixtures simultaneously with a powerful 4.3 GPM output for uninterrupted comfort.
  • ENERGY SMART HEAT EXCHANGE - Oxygen-free copper heat exchanger with 3 seasonal modes slashes energy bills while maximizing efficiency.
  • SPACE SAVVY COMPACT DESIGN - Save over 50% space compared to traditional tanks—sleek 20.5"H x 13"W fits effortlessly in any corner.
  • PRECISION TEMPERATURE CONTROL - Built-in chip adjusts heating 20,000 times/sec, maintaining water temperature within 1°F for perfect showers.

The Orbek Natural Gas Tankless Water Heater delivers up to 100,000 BTU and 4.3 GPM, powering multiple fixtures simultaneously with CSA-certified safety features. Its compact design saves space while advanced temperature control ensures consistent comfort. Energy-efficient with a durable copper heat exchanger and easy installation, it’s the smart upgrade for modern homes seeking reliable, on-demand hot water.

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Specifications

BrandOrbek
Product Dimensions13"W x 20.5"H
Special FeatureFour Seasons Function, 24/7 Customer Service, 2 & 5 Years Warranty, CSA Certified with Many Protections, Compact Design & Easy Installation
ColorWhite
Wattage17 Watt-hours
Voltage120 Volts (AC)
Maximum Flow Rate4.3 Gallons Per Minute
Maximum Temperature149 Degrees Fahrenheit
Heat Output100000 BTU per Hour per Foot per Degree Fahrenheit
Efficiency[High]
Maximum Operating Pressure150 Pound per Square Inch
Maximum Pressure150 Pound per Square Inch
Mounting TypeWall
Is ElectricNo
ManufacturerOrbek
Item Depth7 inches
Item Weight25.6 pounds
Country of OriginChina
Item model numberHW100
Special FeaturesFour Seasons Function, 24/7 Customer Service, 2 & 5 Years Warranty, CSA Certified with Many Protections, Compact Design & Easy Installation
Included ComponentsTankless 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

Have a Question? See What Others Asked

What is the after-sales service for the Orbek water heater?
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Is there a limit to the altitude of the place of use?
Does this product have freeze protection?
Is there anything I need to prepare separately for installing the water heater?

Reviews

4.2

All from verified purchases

D**!

Better than I expected water heater at a great price.

So far working great, and one of the best things about it is that it turns on with minimal flow that my prior heaters of this gpm would not operate at. So we no longer need to have faucets at full blast just to get the heater to turn on. Also like that it had 3/4 sized water connections where as other heaters only do 1/2" size which limits flow especially when using plumbing like pex. The only negative is that it does take about a second longer to actually cut on once it detects flow compared to other heaters I have had, just makes it a bit longer to wait for hot water to start coming out. Otherwise, seems like a high quality heater, hopefully it will last without throwing error codes like I have had with these style heaters in the past.Keep in mind, these style of water heater do not need to mix with cold water like a traditional heater. You want to set the temperature to the hottest setting that you need out of the tap without mixing with cold water. then use the cold water to adjust down as needed. You do NOT need to set it to some high temp to then mix with cold water like you normally do with a tank in order to not run out of cold water in the shower. these are on demand so you will never run out. I see alot of reviews saying it cuts off when they mix it with cold water. likely they are having the temp up too high and mixing too much cold water with it causing the flow to drop down too much and causing it to cut off. this will happen with ANY of these tankless style water heaters. Especially in an RV where flow is often lower to begin with.

G**D

Wow nice hot water

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.

L**S

Fairly straightforward install. Heats very fast, easy controls

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.

S**N

Great water heater. EXCELLENT Customer Service

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.

A**R

Unit would not heat water, not recommended

After installation, with all directions followed and all connections verified correct and without leaks. The unit was started following the step by step instructions. The water temperature was set and the water flowed, but the burner wouldn't start. We checked and rechecked every step of the setup and verified everything to be correct, but the burner still wouldn't start.I finally decided to return it and get a replacement in case it was damaged in shipment or something. Now the problem is, they didn't give me the option of getting a replacement while the unit is shipping back. I have to wait 2 weeks for it to be shipped before they will give me a credit to get another one. While I'm waiting my old water heater is leaking all over the floor and damaging the carpet and floor underneath. I'm not happy with this company at all.

R**B

Great value

It works great, exactly what it should do, easy to install, and a great price. What's not to love?

R**N

Great for what I needed

Just right for what I needed, pay attention to gallons per minute when purchasing. I use this for a shower and wet bar. It works very well I'm impressed. Installation was super easy.

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TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Natural Gas Tankless Water Heater Orbek 100 000 Btu Up | Desertcart Martinique