Best Rated Tankless Gas Water Heaters

2020 Best Rated Tankless Gas Water Heaters – Amazon Best Sellers


Here you have the list with best rated tankless gas water heaters, all portable, energy efficient, easy to use, and versatile items for outdoor activities. So keep reading.

What is in the list

As you realize from the title, those are tankless models so they are not bulky, but they are gas heated and you would have a gas bottle that you might use also for other purposes in the camp.

Those are also all Amazon bestselling items, they are very popular and with a high rating and you have many reports by customers. So check what others are saying, there is a lot of useful information in their reports.

You will notice that many of them are Amazon Prime products. So if you have not been using this benefit, you might want to check it now, with this you will have free shipping for these and other Prime items, and you can have them shipped quickly.

Many of the items in the list are on sale, so check carefully and you can save a lot. Note also that those are top brands in the industry.

How tankless gas water heaters work

So these heaters only heat the water when you need it, and there is no standby heat loss which you normally have with heaters with tanks.

You have a heat exchanger, a device that transfers heat from the source to the water and it is activated by the incoming flow of water. So it is triggered when you turn on your hot water tap.

These tankless gas water heaters can be used on camping and in combination with some of the shower shelters, for climbing, on boats, and basically anywhere where you need them. You can attach it to the vehicle as you see from the picture above and have hot water in your camp kitchen.

How to choose & what to know

Output: You will see this number mentioned in the specifications of the models in the list. This is typically in gallons per minute on the US market and you can have anything in the range 1-4 gallons per minute.

The size: These are tankless models but you will see some numbers in liters, so this is the volume of the set itself. Typically this is in the range 5-16 liters.

The heat source: So this is propane or LPG most of the time, these terms are used interchangeably by various manufacturers, so there is not much to choose really.

How long will it last: These things are designed to last for many years, and they will surely return the value for your money. But check also the warranty conditions, one never knows. Make sure also that you buy a model with a CSA certified gas regulator, you will see many of such models in the list.

So here they are, nicely designed portable propane water heaters for camping, please have a look and check what makes them so popular:

Bestseller No. 1
Tankless Water Heater, GASLAND Outdoors BE158R 1.58GPM 6L Portable Gas Water Heater, Instant Propane Water Heater, Overheating Protection, Easy to Install, for RV Cabin Barn Camping Boat, Red
177 Reviews
Tankless Water Heater, GASLAND Outdoors BE158R 1.58GPM 6L Portable Gas Water Heater, Instant Propane Water Heater, Overheating Protection, Easy to Install, for RV Cabin Barn Camping Boat, Red
  • 🎁【CSA Approved Safety 】CSA approved Gasland tankless water heater, safe as per Canadian and US Standard. Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. Automatically decrease water pressure between 2.5-110PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. High water temperature protection over 167 °F. Shut off gas supply automatically under unexpectable flameout.
  • 🎁【Lightweight Portable Design】 Compact size and lightweight design for easily carry. It can bring a amazing hot shower for you when you are camping, to the beach, etc. Also you can wash your pets with this tankless water heater in outdoor. Hang it using the mounting bracket on the top/back of the gas water heater. It only takes you a few minutes to install it. Or you can install it according to the instructions.
  • 🎁【On Demand Hot Water】 Maximum power output 41,000BTU/Hr, get instant endless hot water easily wherever you are. No need to preheat before using tankless water heater. As soon as you turn on the tap, the water flows with your desired temperature. Low water pressure start up, just need 2.5 PSI of water pressure. 1.58 gallons per minute of on-demand hot water. Fully adjustable heat and water flow.
  • 🎁【Energy Saving】 Compact and light weight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise. You will save more when you use our tankless water heater.
  • 🎁【Excellent Customer Service】We have local professional team to offer you excellent service. If you have any problem, please feel free to contact us from 9:00 am to 6:00 pm by dialing the hotline (844)538-7890 on working days.
Bestseller No. 2
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
  • CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
  • INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  • FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
  • EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
Bestseller No. 3
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5)  - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
914 Reviews
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
  • CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
  • INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  • FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
  • EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
Bestseller No. 4
Rinnai V65EP Tankless Water Heater, Large, V65eP-Propane/6.5 GPM
  • Endless hot water for your entire home
  • V65eP HE High Efficiency Tankless Hot Water Heater - Propane: Outdoor Installation Only
  • Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
  • Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
  • Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
Bestseller No. 5
Portable Propane Water Heater, Tankless Hot Water Heater, HOTAITAI 6L Camping Shower, On Demand Propane Water Heater, RV Camping Water Heater, Easy to Install, UMC Certified
  • ◎ HOTAITAI UMC certified 6L outdoor portable tankless water heater can supply instant, endless, on-demand hot water. It has compact size and 11lb body for easy carrying. Multiple safety protections can ensure the family safety. The best solution for outdoor hot water, perfect for camping, RV life or anywhere you need hot water.
  • ◎ ON DEMAND HOT WATER, ENJOY HOT WATER.The unit can supply instant, endless hot water easily wherever you are. No need to preheat, no need to wait. As soon as you turn on the switch on the shower rose or tap, the water will flow with your desired temperature. Fully adjustable heat and water flow.
  • ◎ LIGHTWEIGHT PORTABLE BODY. Body size: 17.3”*11.8”*5.1”, net weight: only 11 lb, with stainless steel handle, for easily carry. Bringing a amazing hot shower for you when you are camping, to the beach, washing your pets with this tankless water heater in outdoor. Hanging it into a hook or using the mounting bracket on the top/back of the gas water heater. Install it in a few minutes.
  • ◎ MULTIPLE PROTECTIONS. Automatically shuts off gas supply when flame goes out accidentally and ignition is unsuccessful. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. High water temperature protection over 167 °F. Automatically shuts off gas supply if the unit doesn’t hang vertically to keep safe and protect the unit.
  • ◎ SAVING ENERGY&MONEY. No need to preheat, no need to wait. The unit can supply on-demand hot water. It can save up to 15% energy.
Bestseller No. 6
Portable Propane Tankless Water Heater - EZ 202 - EZ Tankless - Battery Powered Ignition - Camping RV
13 Reviews
Portable Propane Tankless Water Heater - EZ 202 - EZ Tankless - Battery Powered Ignition - Camping RV
  • Easy Portability - Only 15 LBS
  • Battey Powered Ignition - 2 "D" Cell Battteries Not Included
  • Great for use at campsites, while fishing, while hunting, barns or any where hot water is needed.
Bestseller No. 7
AQUAH Outdoor Open Flue Liquid Propane Gas Tankless Water Heater 6 L / 1.6 GPM
11 Reviews
AQUAH Outdoor Open Flue Liquid Propane Gas Tankless Water Heater 6 L / 1.6 GPM
  • Brand New AQUAH outdoor open flue liquid propane gas tankless water heater
  • Automatic electrical pulse ignition with no standing pilot, operated by 2 D Batteries;
  • 85% thermal efficiency, 12,000 Watt / 40,900 Btu/h thermal input, ultra low startup water pressure;
  • 45 dgrees temperature rise at the flow rate of 1.6 gllons per minute (GPM);
  • Gas Pressure: 2800Pa (0.41 psi), free shower head with On/Off Switch.
SaleBestseller No. 8
Camplux ME40 Mini Tank Electric Water Heater 4-Gallon,120 Volts
197 Reviews
Camplux ME40 Mini Tank Electric Water Heater 4-Gallon,120 Volts
  • 4-gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it
  • Electric water heater is easy to maintain and has glass-lined tank for long service life
  • Thermostat Control allows adjustment of water temperature.High Limit device provide protection while overheating.
  • Plugs into 120 volt outlet for independent installation or in-line with a large hot water source.(Max. water pressure is 150 PSI,CSA listed Temperature & Pressure relief valve included)
  • Can be shelf, wall or floor mounted; Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. Product dimension:11.75" W x 22" H x 10.38" D.
Bestseller No. 9
Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater, Liquid, White
216 Reviews
Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater, Liquid, White
  • Provide endless hot water on demand and only as needed
  • Save up to 60% on electricity bills for water heating
  • Compact design saves space and is easy to install almost anywhere
  • No electrical connection is required so it's perfect alternative for those homes experiencing frequent power outages
  • Unlimited hot water whenever is needed
Bestseller No. 10
Happybuy Propane Hot Water Heater 18L Tankless Propane Water heater 4.8GPM Propane Tankless Water Heater 36KW Upgrade Type with Shower Head Kit and Water Filter and Gas Regulator
  • 【PREMIUM QUALITY】- Tankless water heater; Gas Supply: LPG(Liquid Petroleum Gas); Power: 36KW; Hot Water Output: 18L/min(4.8GPM); Anti-rust stainless steel case, high-temperature resistant copper water devices. Also come with a propane gas regulator & hose, and a water filter.
  • 【EFFORTLESS CONTROL】- Clear LED display of current water temperature, rotate gas supply & water output control knob to adjust hot water temperature easily. Also provide summer/winter mode to select for energy saving.
  • 【MULTI-LEVEL PROTECTION】- Care much about safety on use, thus to adopt several protection methods, like: Over 75℃ protection, low water flow protection etc. Also can start at low water pressure, come with a shower head kit as gift.
  • 【WALL-MOUNT DESIGN】- It is light-weight, portable and tankless to installed on the wall for space-saving. Copper standard G1/2" hose connectors, φ4.5" smoke exhaust pipe output(not include).
  • 【DIVERSIBLE APPLICATION】- CE passed product, fast to heat, perfect for bathroom showering, hand washing, or pet showering, sink cleaning. Provide you constant hot water, especially on winter or cold places. Enjoy a cozy showering at any time.
Bestseller No. 11
Eccotemp L5 Portable Outdoor Tankless Water Heater
  • Being Designed and developed in Summerville SC USA, The Eccotemp L5 is the only legal CSA Certified portable tankless water heater on the market that can legally be sold in the US and Canada!
  • Lightweight, easy to carry, and compact, makes using it for camping, hunting, in your Tiny Home, RV’s, Poolside, Washing Pets, Equestrian, Cleaning Vehicles, Greenhouses or anywhere else that you need instant reliable endless hot water perfect for hot water anywhere you need it.
  • Runs on a standard 20 lb. liquid propane tank and is equipped with an electronic ignition. Powered by 2 “D” cell batteries, making it ideal for on-the-go. Make the L5 even more convenient and pair it with the EccoFlo 12v water pump, allowing you to have hot water in the most remote locations!
  • Real, appointment based dedicated support available M-F, 8am-8pm EST. Eccotemp also offers live chat and 24/7 self help desk to keep you in HOT WATER. With educated technical support, manuals, troubleshooting all available at your fingertip you’ll have peace of mind when purchasing an Eccotemp product.
  • Rated at 1.5 GPM the L5 can produce hot water with water pressure as low as 20PSI and achieve temperatures ranging from 50-140 degrees F. Simply adjust the water and gas flow to achieve your desired temperature.
Bestseller No. 12
Camplux Propane Tankless Water Heater,3.18 GPM High Efficiency Instant Hot Water Heater with Fahrenheit Digital Display, Residential Propane Gas Water Heater for 2-3 Persons Bathroom Indoor Use,Black
50 Reviews
Camplux Propane Tankless Water Heater,3.18 GPM High Efficiency Instant Hot Water Heater with Fahrenheit Digital Display, Residential Propane Gas Water Heater for 2-3 Persons Bathroom Indoor Use,Black
  • Sleek,Modern,Compact Design -Trendy and modern design with unique black glassy front panel featuring an easy to use LED touchscreen controls with Fahrenheit Digital & Display. (Fahrenheit and Celsius switch optional) .The compact size - (L)14.4 x (W)4.7 x (H)25.4 inch tankless water heater saves more space than traditional tanks.
  • Instant Tankless Water Heater -High water capacity range 0.8 - 4.8 GPM, Camplux high efficiency 3.18 GPM propane tankless water heater delivers 3.18 gallons per minute of on-demand endless hot water ensures instant hot water for 2-3 persons home comfortable shower.
  • Multiple Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety. Fully automatic temperature controls with an energy saving mode and child lock technology.
  • Convenient, Easy Installation -Uses standard 1/2" NPT water fittings and comes with 2.3 inch horizontal venting pipe allowing for convenient and quick installation,great for whole home,small cabins and remote apartments use. You can take Camplux customized wall thimble-WT236 for perfect indoor use.
  • Considerate Customer Service- Here at Camplux, customer service is everything! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk.
Bestseller No. 13
Camplux JK-3206P 12V Water Pump 6L/Min 65 PSI High Pressure Caravan Boat Gas Hot Water System
12 Reviews
Camplux JK-3206P 12V Water Pump 6L/Min 65 PSI High Pressure Caravan Boat Gas Hot Water System
  • SAVE YOUR TIME & MONEY - High efficiency with the 6L water pump.It's easy to handle water pressure problem.Accessories complete, the pump can be used as soon as you get.
  • WITH CE CERTIFICATION - This pump passed the CE certification, built-in overheating protection device, very safe.
  • EASY TO INSTALL & USE- Contains a wealth of accessories.Easy to install and easy to use. Can be used for general water transfer, spraying, circulation, filtration, dispensing, small rain system, gas hot water system.
  • 6L/Min 65 PSI - 1.6 gallons per minute (6.0 liters per minute) ; 1/2-inch hose barb ports.
  • ACCESSORIES COMPLETE - Including all accessories you may need:1.1m alligator clip lead;6.8m cigarette socket lead with on/off switch;2m outlet garden hose;2m suction hose and filter.
Bestseller No. 14
Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White
493 Reviews
Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White
  • Whole home indoor, gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver.
  • For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.
  • Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.
  • Safe electronic ignition system; plugs into standard 120v electrical outlet with UL-listed cord.
  • Uses standard 1/2" NPT water fittings and is equipped with easy to use manual water temperature controls.Minimum 0.65 GPM flow rate
SaleBestseller No. 15
Rinnai V65IP Tankless Water Heater, Large, V65iP-Propane/6.5 GPM
253 Reviews
Rinnai V65IP Tankless Water Heater, Large, V65iP-Propane/6.5 GPM
  • V65iP HE High Efficiency Tankless Hot Water Heater - Propane: Indoor Installation Only
  • Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
  • Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
  • Endless hot water for your entire home.10,300 BTU (Minimum) / 150,000 BTU (Maximum)
  • Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
Bestseller No. 16
Camplux 10L 2.64 GPM High Capacity Color Screen Propane Tankless Water Heater
  • [Ease to Use] For whole home on demand indoor use with safe, efficient power ventilation ,perfect for any small homes, cabins or apartments.
  • [Modern Design] Exclusive color digital temperature display make it easier to read the temperature. Features on compact and space-saving design with minimal noise output.
  • [Saving More Energy] Eco and Full gas switch, rated at 2.64 GPM that activates only when in use, making it more energy saving.
  • [More Safety] Flame-out protection, anti-freezing protection, over-heating protection, air flow pressure switch protection to ensure the safety. Safe electronic ignition system, plugs into standard 120V electrical outlet with UL-listed cord.
  • [Controls Water Temperature Easily ] Uses standard 1/2" NPT water fittings and is equipped with easy to use manual water temperature controls.
Bestseller No. 17
Marey Power Gas 10L 2.7  GPM Propane Gas Digital Panel Tankless Water Heater
238 Reviews
Marey Power Gas 10L 2.7 GPM Propane Gas Digital Panel Tankless Water Heater
  • Digital Temperature Display
  • Compact design saves space and allows for easy installation just about anywhere
  • Does not require electricity (operates with 2 D Cell battery)
  • Only uses gas while water is flowing
  • Saves water and up to 60% less electricity than conventional tank water heater, making it cost effective and
Bestseller No. 18
Mr. Heater F235300  BOSS-XB13 Basecamp Battery Operated Shower System,Multi
78 Reviews
Mr. Heater F235300 BOSS-XB13 Basecamp Battery Operated Shower System,Multi
  • 12,000 BTU per hour
  • Flow rate - .6 Gallons per minute. Scald Protection,Tip Switch and Flow Driven Ignition
  • For use with propane gas, water can be increased by up to 35 degrees f above source water temperature
  • 4 d-cell battery operated pump for 40 minutes of run time
  • Complete kit includes - single outlet with quick connect shower head and pump assembly

Thank you for reading. You might want to check also our separate list with battery-operated camping showers. Let us know if you have any question or comment. Have a nice day.

Last update on 2020-07-09  / Affiliate links / Images from Amazon Product Advertising API

2 thoughts on “2020 Best Rated Tankless Gas Water Heaters – Amazon Best Sellers”

  1. Hello,
    I bought a Bosch Electric Mini-Tank Water Heater about 5 months ago. I am very happy with this product. It is very easy to use and it looks awesome. Thanks for sharing this article

    Reply
    • Hi Harshit, great to hear from you. Thank you for letting us know about your experience with that water heater. All the best.

      Reply

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