20 Best Cheap Tankless Gas Water Heater [2022]

Are you looking for the best Cheap Tankless Gas Water Heater? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Cheap Tankless Gas Water Heater.

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1 Excel Tankless On-Demand Gas Water Heater VENTFREE – Propane (LPG) - Low Water Pressure Startup Excel Tankless On-Demand Gas Water Heater VENTFREE – Propane (LPG) - Low Water Pressure Startup
2 Natural Gas Tankless Water Heater, FOGATTI Indoor 7.5 GPM, 170000 BTU White Instant Hot Water Heater Natural Gas Tankless Water Heater, FOGATTI Indoor 7.5 GPM, 170000 BTU White Instant Hot Water Heater
3 Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
4 Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM
5 Tankless Water Heater, 12L 3.17 GPM 23Kw Instant Heating Natural Gas Water Heater with Constant... Tankless Water Heater, 12L 3.17 GPM 23Kw Instant Heating Natural Gas Water Heater with Constant...
6 Rinnai RU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM Rinnai RU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM
7 Rheem RTGH-RH10DVLN Prestige Series Professional Condensing Tankless Gas Water Heaters with Built-in... Rheem RTGH-RH10DVLN Prestige Series Professional Condensing Tankless Gas Water Heaters with...
8 MAREY GA5FLP 1.32 GPM, 34,120 BTU's LP Gas Flow Activated Tankless Water Heater, White MAREY GA5FLP 1.32 GPM, 34,120 BTU's LP Gas Flow Activated Tankless Water Heater, White
9 Tankless Water Heater, GASLAND Outdoors BE158SN 6L 1.58GPM Propane Gas Water Heater, Overheating... Tankless Water Heater, GASLAND Outdoors BE158SN 6L 1.58GPM Propane Gas Water Heater, Overheating...
10 Camplux Tankless Water Heater Natural Gas,High Efficiency Natural Gas Tankless Water Heater with... Camplux Tankless Water Heater Natural Gas,High Efficiency Natural Gas Tankless Water Heater with...
11 Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
12 Rheem RTG-84DVLN 8.4 GPM Low NOx Direct Vent Tankless Natural Gas Water Heater Rheem RTG-84DVLN 8.4 GPM Low NOx Direct Vent Tankless Natural Gas Water Heater
13 Camplux 5L 1.32 GPM Portable Propane Water Heater, Outdoor Tankless Gas Water Heater for Camping... Camplux 5L 1.32 GPM Portable Propane Water Heater, Outdoor Tankless Gas Water Heater for Camping...
14 Camplux Outdoor Portable Hot Water Heater Propane Instant 2.11 GPM On Demand Camping Gas Tankless... Camplux Outdoor Portable Hot Water Heater Propane Instant 2.11 GPM On Demand Camping Gas Tankless...
15 Rheem 18kW 240V Tankless Electric Water Heater Rheem 18kW 240V Tankless Electric Water Heater
16 Rinnai RU199iP Propane Gas Condensing Tankless Hot Water Heater, 11 GPM Rinnai RU199iP Propane Gas Condensing Tankless Hot Water Heater, 11 GPM
17 MAREY 4.2 GPM, 100,000 BTUs, Whole House solution, Digital Display, Outdoor Propane Gas Tankless... MAREY 4.2 GPM, 100,000 BTUs, Whole House solution, Digital Display, Outdoor Propane Gas Tankless...
18 18L/4.8Gallon Tankless Water Heater 4.8GPM High Efficient LPG Propane Gas Hot Water Heater Instant... 18L/4.8Gallon Tankless Water Heater 4.8GPM High Efficient LPG Propane Gas Hot Water Heater...
19 Tankless Water Heater, Camplux Constant Propane Water Heater, 3.18 GPM On Demand Water Heater,... Tankless Water Heater, Camplux Constant Propane Water Heater, 3.18 GPM On Demand Water Heater,...
20 12L 3.2GPM Outdoor Tankless Water Heater Propane - Liquid Propane Gas LPG Hot Water Heater Tankless... 12L 3.2GPM Outdoor Tankless Water Heater Propane - Liquid Propane Gas LPG Hot Water Heater...
Bestseller No. 1
Excel Tankless On-Demand Gas Water Heater VENTFREE – Propane (LPG) - Low Water Pressure Startup
  • PROPANE LPG GAS UNIT
  • "Low Water Pressure" Startup Technology
  • Starts with only 2 PSI of Water Pressure - Amazon Exclusive
  • Exclusive - Vent-Free Technology No expensive Flue required Amazon Exclusive
  • Compact size: front 11.5” - depth 6” – height 16”
Bestseller No. 2
Natural Gas Tankless Water Heater, FOGATTI Indoor 7.5 GPM, 170000 BTU White Instant Hot Water Heater
  • We recommend that all installations of units must be done in accordance with the local building and plumbing codes of the installation location and...
  • The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
  • 170,000 BTU high heating capacity and maximum 7.5 GPM. It is suitable for 3-4 outlet points, which can satisfy whole family. UEF over 0.82, the high...
  • Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced technology, superior safety and durability.
  • Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind. Compact design for easy...
Bestseller No. 3
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 199, 900 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use indoor only
Bestseller No. 4
Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary.
  • Optimal Water Pressure: High-performance up to 5.3 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
SaleBestseller No. 5
Tankless Water Heater, 12L 3.17 GPM 23Kw Instant Heating Natural Gas Water Heater with Constant...
  • 【Tankless Instant Hot Water Heater】No need to preheat before using the tankless water heater. As soon as you turn on the tap, the water flows...
  • 【High Sensitive Touch Led Display】Comes with smart digital LED display high-definition large screen, freely adjustable the temperature between...
  • 【Multiple Security Protection】The natural gas water heater is upgraded with 12 protection methods to ensure your safety. Such as dry burning...
  • 【Energy and Money Saving】The hot water heater adjusts power input based on flow rate and temp setting in real time. Summer/winter 2 modes to save...
  • 【Quality Material】Made with brushed stainless steel material, the gas water heater has the function of high temperature resistance, corrosion...
Bestseller No. 6
Rinnai RU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: Up to 11 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: Equipped with Circ-Logic - Pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively. Wifi monitoring.
Bestseller No. 7
Rheem RTGH-RH10DVLN Prestige Series Professional Condensing Tankless Gas Water Heaters with Built-in...
  • Rheem Prestige RTGH is a series of high efficiency condensing tankless gas water heaters designed for continuous hot water and 180,000 btu
  • With dual stainless steel condensing heat exchanger, Max GPM of 11 (on 180K BTU models)
  • Instant Hot Water at the Tap, Programmable time based activation, Save Time on Install with Built-in Pump, Reduces Water Waste
Bestseller No. 8
MAREY GA5FLP 1.32 GPM, 34,120 BTU's LP Gas Flow Activated Tankless Water Heater, White
  • ECO-FRIENDLY WATER HEATER: Save energy using less gas during the warm months with the Marey Tankless Liquid Propane Gas Water Heater; Color: White;...
  • BATTERY POWERED: Tankless water heater starts with pulse ignition powered by (2) D batteries (not included); No cords necessary
  • AUTOMATIC SHUT-OFF: Multiple safety sensors, such as auto cut-off, automatic ignition, anti-dry combustion, over-pressure, overheating, flameout...
  • TEMPERATURE CONTROL: Ideal for indoor use in apartments, cabins, and tiny homes; Control your temperature year-round with the convenient summer/winter...
  • FEATURES: 1.32-GPM heater is activated by water flow rather than water pressure; Minimum activation rate: 0.65 GPM; Maximum input rating: 34,120 BTUs;...
Bestseller No. 9
Tankless Water Heater, GASLAND Outdoors BE158SN 6L 1.58GPM Propane Gas Water Heater, Overheating...
  • 🎁【On Demand Hot Water】 Maximum power output 41,000BTU/Hr, get instant endless hot water easily wherever you are. No need to preheat before...
  • 🎁【CSA Approved Safety 】CSA approved Gasland tankless water heater, safe as per Canadian and US Standard. Flame failure device, anti-freezing...
  • 🎁【Energy Saving】 Compact and light weight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are...
  • 🎁【Lightweight Portable Design】 Compact size and lightweight design for easily carry. It can bring a amazing hot shower for you when you are...
  • 🎁【Excellent Customer Service】We have professional team to offer you excellent service. If you have any question, please feel free to contact us...
Bestseller No. 10
Camplux Tankless Water Heater Natural Gas,High Efficiency Natural Gas Tankless Water Heater with...
  • 3.18 GPM Instant Constant Water Heater -Camplux 3.18 GPM tankless water heater natural gas delivers 3.18 gallons per minute of on-demand endless hot...
  • Convenient, Easy Installation -The tankless water heater uses standard 1/2" BSP water fitting and gas inlet. The water heater comes with1/2 " BSP...
  • Modern Design,Easy Operation -Trendy and modern design with unique white glassy front panel,easy to control the water temperature with LED...
  • Outstanding Features- The Camplux tankless gas water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner,high heating...
  • 6-In-1 Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety....
Bestseller No. 11
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
Bestseller No. 12
Rheem RTG-84DVLN 8.4 GPM Low NOx Direct Vent Tankless Natural Gas Water Heater
  • Natural Gas Tankless Water Heater
  • Direct Vent Indoor
  • 8.4 gal/min. at 35-Degree Rise
  • UMC-117 remote control and 10-Feet of thermostat wire is included
  • Low Nox Version
Bestseller No. 13
Camplux 5L 1.32 GPM Portable Propane Water Heater, Outdoor Tankless Gas Water Heater for Camping...
  • Safety Standard-CSA approved portable tankless water heater for US &Canada markets. Lowest water pressure start up just need 3.0 PSI! Also works great...
  • Operating Features-The maximum temperature raise is 114.8℉(46℃) and the minimum temperature raise is 46.4℉(8℃)for 1.32GPM.1.32 gallons per...
  • Portable Design -The compact portable gas water heater with folding handle keeps it out of the way, allowing for a convenient set-up outdoors.
  • 6-in-1 Proection - Flame failure device, anti-freezing protection and oxygen depletion safety shut-off protection
  • Important Tips -To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet...
Bestseller No. 14
Camplux Outdoor Portable Hot Water Heater Propane Instant 2.11 GPM On Demand Camping Gas Tankless...
  • Portable Design. This portable water heater weights 14 lb, which is perfect for outdoor camping and road trips.
  • Easy to Install. The propane tankless water heater only takes you 5 minutes to get 2.11 GPM instant hot water. The tankless water heater is powered by...
  • 3.0 PSI Water Pressure Start. The propane portable water heater lights when water pressure between 3.0-110 PSI. 3.0 PSI low water pressure is perfect...
  • Energy Saving. The outdoor portable hot water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas...
  • Important Tips. To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet...
Bestseller No. 15
Rheem 18kW 240V Tankless Electric Water Heater
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display
Bestseller No. 16
Rinnai RU199iP Propane Gas Condensing Tankless Hot Water Heater, 11 GPM
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: Up to 11 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: Equipped with Circ-Logic - Pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively. Wifi monitoring.
Bestseller No. 17
MAREY 4.2 GPM, 100,000 BTUs, Whole House solution, Digital Display, Outdoor Propane Gas Tankless...
  • Maximum of 4.2 Gal. per minute for a perfect outdoor shower at 115°F output water temperature.
  • Rated at maximum output 100,000 BTUs for endless hot water
  • No electricity needed: unit ignites with 2 D cell batteries. Perfect for off the grid areas, campsites, cabins or any other location where electricity...
  • Unit comes with a digital display making it easy to adjust water and gas flow to your desired output temperature
  • CSA Certified gas regulator and hose and portable outdoor shower included
Bestseller No. 18
18L/4.8Gallon Tankless Water Heater 4.8GPM High Efficient LPG Propane Gas Hot Water Heater Instant...
  • 【High Efficient Energy Saving】 the heater exchanger and main burner adopt mostly advanced energy-saving and combustion technology to decrease gas...
  • 【Low Water-pressure Startup】 the water control linkage valve makes the heater start up under low water pressure and stable water flowing under...
  • 【Ion Flame Inspection】 to automatically shut down gas power under unrexpectable flameout. Controller design: both cold water and warm water can be...
  • 【Over Water Pressure Protection Function】 to automatically decrease pressure under excessive high water pressure.
  • [Anti-freezing Warning] To prevent the water tank from being accidentally frozen, when the outdoor temperature is below 0 °C(32˚ F), to prevent a...
Bestseller No. 19
Tankless Water Heater, Camplux Constant Propane Water Heater, 3.18 GPM On Demand Water Heater,...
  • 3.18 GPM Instant Constant Water Heater -Camplux 3.18 GPM propane tankless water heater delivers 3.18 gallons per minute of on-demand endless hot water...
  • Easy Installation -The tankless propane water heater uses standard 1/2" NPT water fitting and gas inlet. The gas water heater comes with 2.3"...
  • Modern Design,Easy Operation -The tankless hot water heater has trendy and modern design with unique black glassy front panel,easy to control the...
  • Outstanding Features- The propane instant hot water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner,high heating...
  • 6-In-1 Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety....
Bestseller No. 20
12L 3.2GPM Outdoor Tankless Water Heater Propane - Liquid Propane Gas LPG Hot Water Heater Tankless...
  • 【Safety, More Protections】- Tankless water heater propane with Over-heating(75℃(167 °F) protection anti-frozen protection and LED water...
  • 【More user-friendly details, More better in using】There are 2mm thickness front panel with coating power, Anti-scratch protection of back panel,...
  • 【Complete parts, Convenient】- Complete parts list, clearly Labelling and marker; 3 pieces water filter, Purified water and keep your gas instant...
  • 【More Applications】- This LPG tankless water heater perfect to Outdoor Shower, Portable Pet Shower in yard, RV, Beach Bathing Boxes, Camping,...
  • 【Easy Installation, Specification】- Portable tankless water heater without AC power, installed 2 pieces D Cell batteries (Excluded in parts...

Having trouble finding a great Cheap Tankless Gas Water Heater?

This problem is well understood by us because we have gone through the entire Cheap Tankless Gas Water Heater research process ourselves, which is why we have put together a comprehensive list of the best Cheap Tankless Gas Water Heaters available in the market today.

After hours of searching and using all the models on the market, we have found the best Cheap Tankless Gas Water Heater for 2022. See our ranking below!

How Do You Buy The Best Cheap Tankless Gas Water Heater?

Do you get stressed out thinking about shopping for a great Cheap Tankless Gas Water Heater? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Cheap Tankless Gas Water Heater, which is why we have assembled a comprehensive list of the greatest Cheap Tankless Gas Water Heater available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Cheap Tankless Gas Water Heater that you consider buying. Your questions might include the following:

  • Is it worth buying an Cheap Tankless Gas Water Heater?
  • What benefits are there with buying an Cheap Tankless Gas Water Heater?
  • What factors deserve consideration when shopping for an effective Cheap Tankless Gas Water Heater?
  • Why is it crucial to invest in any Cheap Tankless Gas Water Heater, much less the best one?
  • Which Cheap Tankless Gas Water Heater are good in the current market?
  • Where can you find information like this about Cheap Tankless Gas Water Heater?

We’re convinced that you likely have far more questions than just these regarding Cheap Tankless Gas Water Heater, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Cheap Tankless Gas Water Heater, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Cheap Tankless Gas Water Heater. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Cheap Tankless Gas Water Heater buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Cheap Tankless Gas Water Heater currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Cheap Tankless Gas Water Heater has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Cheap Tankless Gas Water Heater?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Cheap Tankless Gas Water Heater.
  5. Customer Ratings: Number ratings grade Cheap Tankless Gas Water Heater objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Cheap Tankless Gas Water Heater.
  7. Product Quality: You don’t always get what you pay for with an Cheap Tankless Gas Water Heater, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Cheap Tankless Gas Water Heater is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Cheap Tankless Gas Water Heater information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Cheap Tankless Gas Water Heater is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What is the most reliable tankless water heater?

A: The Best Tankless Water Heaters (Updated 2022) Stiebel Eltron Tempra 36 Plus Electric Tankless Whole House Water Heater. … Rinnai RUC98iN Ultra Series Natural Gas Tankless Water Heater. If your water heater is giving you problems, perhaps it’s time to get a replacement. … Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heater. … Takagi T-KJr2-IN-LP Indoor Tankless Water Heater. … More items…

Q: Does a tankless water water heater actually save money?

A: Yes , a tankless water heater can save money over time, but that doesn’t mean it is always the right choice and there are many factors to consider before deciding. Consider the average cost of a 50-gallon traditional tank water heater is $500 (or $1000 installed) with an average lifespan of 10 years.

Q: Are tankless water heaters worth it?

A: Of course, tankless hot water heaters are worth it. They have a higher upfront cost, but a lower running cost and last twice as long as the conventional tank water heaters. You will find the full summary with calculated savings costs at the end of the article (we’ll calculate them using best rule-of-thumb estimations).

Q: What are the advantages and disadvantages of a tankless water heater?

A: A third advantage of installing a tankless water heater is its durability, longevity and low maintenance requirements. The impurities contained in most household water are detrimental to storage tank heaters, as the water sits there continually, causing rust, corrosion and sediment buildup. This isn’t a problem with tankless water heaters.