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CAMPLUX Tankless Natural Gas Water Heater, 3.18 GPM On Demand Instant Water Heater, 82,000 BTU, White

  • Based on 712 reviews
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Availability: In Stock.
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Arrives Tuesday, Jun 10
Order within 19 hours and 5 minutes
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Style: Natural Gas 3.18 GPM


Color: White


Features

  • Performance: Camplux 3.18 GPM gas tankless water heater boasts a heating capacity of 820,000 BTU and a hot water flow rate of 3.18 gallons per minute (GPM). It can provide continuous hot water for 2-3 water supply points, making it sufficient to meet the hot water needs of a household's bathroom, kitchen, and bar area.
  • No Waiting Required: Unlike traditional tank water heaters, instant water heaters eliminate the need for a 30-minute preheating wait time, allowing you to have unlimited hot water on demand.
  • Upgrade features: The instant gas water heater has trendy and modern design with unique white glassy front panel easy to control the water temperature with LED touchscreen (Fahrenheit and Celsius switch optional). 90wind isolation design, this tankless propane water heater can anti backflow wind in high floors.
  • Recommendation: We strongly advise that all installations of the device adhere to local building and plumbing regulations at the installation location, and should be carried out by licensed professionals.

Brand: CAMPLUX ENJOY OUTDOOR LIFE


Product Dimensions: 14.37"W x 25.39"H


Special Feature: Dry combustion protection, Flame failure device, Anti-freezing protection, Over heating protection, Child lock technology See more


Color: White


Wattage: 42 watts


Brand: ‎CAMPLUX ENJOY OUTDOOR LIFE


Product Dimensions: ‎14.37"W x 25.39"H


Special Feature: ‎Dry combustion protection, Flame failure device, Anti-freezing protection, Over heating protection, Child lock technology


Color: ‎White


Wattage: ‎42 watts


Voltage: ‎120 Volts


Maximum Flow Rate: ‎3.18 Gallons Per Minute


Maximum Temperature: ‎149 Degrees Fahrenheit


Efficiency: ‎89.98%


Maximum Pressure: ‎145 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎CAMPLUX


UPC: ‎850011050521


Part Number: ‎CA318W-NG


Item Weight: ‎25.9 pounds


Country of Origin: ‎China


Item model number: ‎CA318W-NG


Installation Method: ‎Wall-Mounted


Item Package Quantity: ‎1


Water Consumption: ‎12 Liters Per Flush


Certification: ‎ANSI Z21.96-2014 / CSA 11.6-2014


Special Features: ‎Dry combustion protection, Flame failure device, Anti-freezing protection, Over heating protection, Child lock technology


Usage: ‎Indoor Use


Included Components: ‎Camplux CA318 Natural Gas Tankless Water heater


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: February 27, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 10

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


  • Seem to be multiple versions.
Style: Liquid Propane 3.18 GPM Color: White
I got one of these 3.18gpm automatic heaters from a warehouse deal. A white one if that makes any difference. It is in Fahrenheit rather than the Celsius that would be expected from prior reviews. Not sure of the other changes, but I can also say that the blower fan is at the top of the unit just under the flap valves. I believe the combustion blower was at the bottom on the earlier units. I've yet to see if it has low temperature protection in this model, but I doubt it. I will be adding a thermal switch inside that starts up the blower fan whenever the internal temp drops below 40. It should run here and there drawing warm inside air through the device occasionally all winter. I've only hooked it up to test it then put it away so far. I am not at the stage with my tiny house to install it yet, but I couldn't pass up the warehouse deal and bought it the moment I spotted it since this was the unit I was going to use anyway. In my initial testing, the only thing I would consider a flaw is that you need quite a flow to make it start up. I would like if it started at more like 0.3GPM rather than almost 0.7. That's a lot of water for me. I use 0.5 GPM on every fixture, even the shower even though I have unlimited well water. The blower makes a bit of noise, and there is an audible clink as the flaps shut when the blower powers off. No big deal, not as loud as a typical bathroom vent fan. For me this will partly double as the bathroom vent on my wall. Something to pay attention to is that most houses are in a negative pressure during the winter. Especially down low in a basement. Those who use this in the winter and have it freeze may be experiencing cold air being constantly drawn into the unit past the flaps because their house is leaking warm air above. Something like a chimney wastes a TON of hot air which has to come from somewhere. I was able to turn the flow rate up very high before it couldn't hold 120*F anymore, at least to me given how little water I am used to. For sure this thing will be able to give you at least a pleasant shower or one large warm water task at a time even with a feed temp of 33*f. The real limit will be getting it to actually start with the lower flows needed for that. I'm sure that it will do at least 1GPM even in those extremes though. Didn't do the BTU/hr calculation for the water volume and temperature. The 3.18GPM will assume a more reasonable feed temperature of course. Speaking of BTU this claims 80k BTU/hr. I don't know if that's the gas consumption rate, or the actual thermal output. Assuming it's thermal, the gas rate is probably more like 96k. This means that the heater will run maxed out for 1 hr per gallon of propane, or about 4 hours total on a 20lb tank that is full at absolute max flow rate. Ultimately this means that it should last quite a long time for a family taking average showers. LPG has 95,500BTU energy per gallon. This is also reaching the limits of a 20lb propane tank especially if it's cold. When propane gas is drawn from the tank the remaining liquid propane boils to replace the gas consumed. This lowers the temperature which then changes the pressure coefficient to be lower. Eventually it will get so cold it cannot boil enough to maintain pressure. This heater could freeze a 20lb tank like that at max flow. I will come back and update this when I eventually have it installed, then again when someday it fails as all things do. hopefully it remains a 5 star review either way. Final note, take a close look at the measurements. This thing is HUGE if you're used to the D battery ignited ones. It's small for what it is, don't get me wrong, but I was caught off guard by it slightly because I never even looked at the dimensions of it. Not negative at all. Just an observation. I assumed the output pipe was 2", so in my head the device was going to be some 30% smaller. ... show more
Reviewed in the United States on July 2, 2022 by KenjiFox

  • actually a good unit.
Style: Natural Gas 5.28 GPM Color: White
my review i bout this on sale for 335 dollars . After i bought it i see the priced jumped double . Well my review is for a 350 dollar unit not a 600 5 star water heater . It works better then my old tank water heater . I would buy it again at the lower price . For the higher price i would go a different direction just to save money . It does 5.5 gpm water at 137 degrees . Fills the tub plenty fast ... show more
Reviewed in the United States on April 9, 2025 by corey

  • Great Addition to My Off-Grid Setup – Took Some Time to Figure Out, But Works Flawlessly Now!
Style: Liquid Propane 3.18 GPM Color: White
I purchased the Camplux Propane Gas Tankless Water Heater (3.18 GPM, 82,000 BTU) for my off-grid setup, and I’ve been using it since September 2023. First off, I’ll say it’s been a game-changer for having hot water on demand without relying on electricity, which is perfect for my solar-powered lifestyle. The 3.18 GPM flow rate is more than enough for my needs—whether it’s for washing dishes, taking a quick shower, or other tasks around my homestead. The glass panel and digital display are nice touches, making it easy to monitor and adjust the temperature. That said, the setup process wasn’t entirely straightforward for me. I’m pretty handy, but it took a bit of trial and error to get everything hooked up properly, especially since I was integrating it with my existing propane system and ensuring proper venting. The instructions could’ve been a bit clearer for someone doing this for the first time. But once I got it figured out, it’s been smooth sailing ever since. It heats up quickly, maintains a consistent temperature, and I haven’t had any issues with it in over a year and a half of regular use. For anyone considering this for an off-grid or RV setup, I’d definitely recommend it—just be prepared to spend a little time on the installation if you’re not already familiar with tankless systems. It’s been a reliable and efficient addition to my space, and I’m glad I went with it! ... show more
Reviewed in the United States on April 24, 2025 by Dirk

  • Superior, 5-Star customer service from Camplux!!
Style: Liquid Propane 3.18 GPM Color: Black
I had internal/electronic problems with the original Camplux 3.18 GPM Propane Instant Hot Water Heater I bought, but the Support Staff at Camplux were exemplary in resolving the situation by replacing the unit, even though I had already passed the 30-day return policy Amazon had established. Greater Detail: I ordered this unit from Amazon on March 8, 2023 and had it shipped to my home in Texas. However, I bought the water heater for my cabin, which is in the Kiamichi Wilderness area of Oklahoma. Thus, I was unable to install the unit until I returned to the cabin on Saturday, April 15, which was several days beyond Amazon's 30-day return policy for the heater. I unboxed the heater for the first time and began installation the next day (Sunday, April 16.) After installing the heater with all recommended hook-ups (see picture) and pre-use leak tests, I plugged-in the unit. The LED Display did NOT come on … and it still didn't, even after I’d performed all the steps given in Amazon’s "Troubleshoot on your own" support page for the water heater. Needless to say, I was very disheartened...especially since I'd already passed the "return by" date. [Note: Before you begin installation, I strongly suggest you plug-in the unit briefly…i.e. just long enough to make sure the display lights-up. However, do NOT tap any buttons on the display, as you’re not supposed to tap any buttons until both gas and water are running to/through the water heater.] Realizing I could no longer return/replace through Amazon, I emailed Camplux directly and requested an RGA number to return the unit for warranty repair(s). I explained the situation in detail and received a response within a couple hours. Over the next few days the support staff walked me through several troubleshooting scenarios—all of which were easy to do—and the Camplux personnel were exceptionally friendly and respectful throughout the process. After 2-3 days of communicating/troubleshooting with Support, the techs at Camplux decided that the unit was indeed defective and that Camplux would replace it, completely free-of-charge (and without my needing to return the original heater.) Wow! I wasn’t expecting that…I was still expecting a 6-8 week warranty return/repair situation. I received my new water heater within a week after Camplux said they’d replace the original, and I immediately opened the box. Leaving the unit in the box, I plugged it in to see if the display would light…Voila! It did!!!! Now all I need to do is take it to the cabin and install it. Then—after I’ve used it for awhile—I plan to write a follow-up review on the water heater, itself. Hopefully the heater will get the same, 5-star review that Camplux Support is getting from me in this write-up. They were exceptional, and I am so very grateful for the service they've provided me. ... show more
Reviewed in the United States on May 5, 2023 by Carole H. Carole H.

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