Top 10 Best Gas Water Heaters in 2021

Have you also tried using over-priced gas water heaters that take forever to heat the water and does not deliver a good amount of warm/ hot water?

There are way too many useless gas water heaters out there, so we have taken on ourselves to find the 10 absolute best reviewed gas water heaters.

Check the top 10 gas water heaters out below, so you can make sure you buy a heater in reasonable price, that heats the water quickly and also supplies a lot of hot water!

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Having checked hundreds of gas water heater reviews, we can say that the Rinnai is the best choice for most people.

93% of the reviewers give 4+ stars to the Rinnai gas water heater!


Rinnai RUCS75iN Tankless Water Heaters, RUCS75iN-Natural Gas/7.5 GPM

Rinnai

The best reviewed gas water heater
Rated 4.7 out of 5

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PS: We have checked 344 reviews to make this top 10 list!

Rank Model Rating
1 Rinnai RUCS75iN Tankless Water Heaters, RUCS75iN-Natural Gas/7.5 GPM Rinnai 4.7 Check Price
2 Samger Samger 12L Tankless Water Heater Digital Display 3.2GPM LPG Instant Water Boiler Stainless Steel Liquefied Petroleum Gas Hot Water Burner Samger Samger 4.4 Check Price
3 BuoQua LPG Water Heater 8L Propane Gas Water Heater Boiler Water Heater Tankless Instant with with Shower Head Kit Wall-Mounted LCD Display (8L-LPG) BuoQua 4.3 Check Price
4 Camplux BW158BC 6L Instant Gas Water Heater with Rain Cap, CE Certified GAR Standard Tankless Propane Gas Boiler, Use for Outdoor Shower Camping RV Trip Horse Washing CAMPLUX 4.2 Check Price
5 FVSTR-Swime 8L Propane Gas Lpg 2GPM Instant Hot Water Heater Tankless Boiler CE w/Shower FVSTR 4.1 Check Price
6 Iglobalbuy 6L LPG Propane Gas Instant Tankless Hot Water Heater Boiler with Shower Kit Iglobalbuy Co,ltd 4.1 Check Price
7 Ridgeyard 6L Portable LPG Propane Gas Tankless Hot Instant Water Heater Boiler Day Gift Ridgeyard Co,.ltd 4 Check Price
8 Iglobalbuy 6L Tankless LPG Propane Gas Water Heater Instant Boiler for Home use Iglobalbuy Co,ltd 3.7 Check Price
9 8L 2 GPM Natural Gas Instant Household Water Heater Bath Shower Boiler Stainless Steel Iglobalbuy Co,ltd 3.5 Check Price
10 Iglobalbuy 8L Natural Gas Tankless Instant Hot Water Heater Boiler with Shower Head Iglobalbuy co,.ltd 3.1 Check Price
How we rate the gas water heaters

We have checked 344 gas water heater reviews, so we can show you the weighted average rating of all the gas water heaters.

Using the average ratings, you can check what all the reviewers think instead of just viewing the subjective opinion of one specific reviewer.

It's much simplier to find the best products that way.

Not sure what gas water heater to choose? Read on as we are going to take a closer look at each gas water heater!


1 – Rinnai

5 review starsRating 4.7 based on 21 reviews

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Rinnai RUCS75iN Tankless Water Heaters, RUCS75iN-Natural Gas/7.5 GPM

Here’s what the reviewers think about the Rinnai:

Reviewers like these things about the Rinnai

  • Some users are happy as the heater takes less space.
  • A couple of reviewers mentioned that the installation is easy.
  • A lot of users said that the heater works perfectly.
  • Others like that the heater is long lasting.
  • Several customers are happy as it supplied with endless hot water.
  • Others are pleased as it heats water quickly.
  • Few customers like easy-to-follow instructions.
  • Some users laud its quiet operation.

Reviewers don’t like these things

  • One buyer is disappointed as the item received was damaged.

  • Rating 4.7 based on 21 reviews
  • 93% of the reviewers give 4+ stars to this gas water heater


2 – Samger Samger

4.5 review starsRating 4.4 based on 31 reviews

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Samger Samger 12L Tankless Water Heater Digital Display 3.2GPM LPG Instant Water Boiler Stainless Steel Liquefied Petroleum Gas Hot Water Burner

Here’s what the reviewers think about the Samger Samger:

Reviewers like these things about the Samger Samger

  • Few customers laud the excellent customer service.
  • Others are pleased as the item is easy to install.
  • A couple of users are happy as the heater is easy to operate.
  • Several users pointed out that it serves its purpose well.
  • Some buyers laud its compact size.
  • Others find it a good value for money.

Reviewers don’t like these things

  • Some customers find it inconvenient that the instruction manual in not in English.
  • One buyer complained about receiving damaged item.

  • Rating 4.4 based on 31 reviews
  • 92% of the reviewers give 4+ stars to this gas water heater


3 – BuoQua

4.5 review starsRating 4.3 based on 46 reviews

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BuoQua LPG Water Heater 8L Propane Gas Water Heater Boiler Water Heater Tankless Instant with with Shower Head Kit Wall-Mounted LCD Display (8L-LPG)

Here’s what the reviewers think about the BuoQua:

Reviewers like these things about the BuoQua

  • Several users admire its classy look.
  • A couple of users admire the nice and clear temperature display.
  • More than few users said the heater is worth the money.
  • Few buyers mentioned that heater works quietly.
  • Many reviewers are satisfied with its working.
  • Few users are pleased with prompt shipment.
  • A couple of buyers find it easy to setup.

Reviewers don’t like these things

  • Very few buyers are disappointed as pressure valve supplied was flimsy.
  • One customer is disappointed as it lacks a regulator.

  • Rating 4.3 based on 46 reviews
  • 83% of the reviewers give 4+ stars to this gas water heater


4 – CAMPLUX

4.5 review starsRating 4.2 based on 38 reviews

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Camplux BW158BC 6L Instant Gas Water Heater with Rain Cap, CE Certified GAR Standard Tankless Propane Gas Boiler, Use for Outdoor Shower Camping RV Trip Horse Washing

Here’s what the reviewers think about the CAMPLUX:

Reviewers like these things about the CAMPLUX

  • A lot of customers like that the heater is easy to fit.
  • Others said the item is easy to use.
  • Several buyers pointed out that the item is well made.
  • Few users are pleased with easy-to-follow instructions.
  • Several buyers pointed out that the heater is economical.
  • A couple of reviewers laud the excellent customer service.
  • Many reviewers mentioned that it does its job perfectly.
  • Others like that it heats the water instantaneously.
  • A couple of buyers laud its compact size.

Reviewers don’t like these things

  • Few buyers are disappointed as the heater is not approved for Germany.
  • One customer is disappointed on receiving faulty item.

  • Rating 4.2 based on 38 reviews
  • 83% of the reviewers give 4+ stars to this gas water heater


5 – FVSTR

4 review starsRating 4.1 based on 37 reviews

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FVSTR-Swime 8L Propane Gas Lpg 2GPM Instant Hot Water Heater Tankless Boiler CE w/Shower

Here’s what the reviewers think about the FVSTR:

Reviewers like these things about the FVSTR

  • A couple of buyers find it perfect for outdoor showers.
  • A lot of reviewers are impressed with its functionality.
  • Several customers are pleased as the heater ignites automatically when the water passes through it.
  • Few purchasers are pleased with easy-to-follow instructions.
  • Others laud the item for the ease of installation.
  • Several customers find it a good value for money.
  • Others said that the price is low.
  • Some reviewers find the customer service impressive.
  • A couple of buyers pointed out that it matches its description well.
  • Some users like that the item is portable.
  • Many customers are impressed with the quality of item.

Reviewers don’t like these things

  • A couple of users complained that it does not have standard connectors for propane gas regulator.
  • Some buyers are displeased as the package was delivered with missing parts.

  • Rating 4.1 based on 37 reviews
  • 79% of the reviewers give 4+ stars to this gas water heater


6 – Iglobalbuy Co,ltd

4 review starsRating 4.1 based on 44 reviews

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Iglobalbuy 6L LPG Propane Gas Instant Tankless Hot Water Heater Boiler with Shower Kit

Here’s what the reviewers think about the Iglobalbuy Co,ltd:

Reviewers like these things about the Iglobalbuy Co,ltd

  • Many buyers are satisfied with the quality of water heater.
  • A couple of buyers like that the item is easy to install.
  • Some users mentioned that the heater heats up fast.
  • Few customers are pleased with fast delivery.
  • Several buyers laud the battery-operated digital display for indicating temperature.
  • A lot of customers mentioned that the heater serves its purpose well.
  • Several buyers find it visually pleasing.

Reviewers don’t like these things

  • A couple of users complained about receiving faulty item.
  • One user is disappointed with the quality of item.

  • Rating 4.1 based on 44 reviews
  • 77% of the reviewers give 4+ stars to this gas water heater


7 – Ridgeyard Co,.ltd

4 review starsRating 4 based on 52 reviews

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Ridgeyard 6L Portable LPG Propane Gas Tankless Hot Instant Water Heater Boiler Day Gift

Here’s what the reviewers think about the Ridgeyard Co,.ltd:

Reviewers like these things about the Ridgeyard Co,.ltd

  • A lot of buyers mentioned that the heater functions well.
  • Several customer laud its compact size.
  • Others like that the heater is easily portable.
  • A couple of reviewers mentioned that the temperature adjustment works well.
  • Few users are pleased with fast delivery.
  • Some reviewers mentioned that the heater is powerful.
  • Some users are satisfied with the price performance ratio.

Reviewers don’t like these things

  • Few customers are disappointed as it warms only little water.
  • Some users complained on receiving defective item and no after service.

  • Rating 4 based on 52 reviews
  • 73% of the reviewers give 4+ stars to this gas water heater


8 – Iglobalbuy Co,ltd

4 review starsRating 3.7 based on 14 reviews

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Iglobalbuy 6L Tankless LPG Propane Gas Water Heater Instant Boiler for Home use

Here’s what the reviewers think about the Iglobalbuy Co,ltd:

Reviewers like these things about the Iglobalbuy Co,ltd

  • A couple of buyers mentioned that it uses little fuel.
  • Others like that the temperature adjustment works great.
  • Some users admire its auto shutdown feature.
  • A couple of reviewers are pleased with prompt shipment.
  • Several buyers find it easy to setup.
  • Others laud the item for its compact size.
  • Many buyers are satisfied with its functionality.
  • Some reviewers mentioned that the price is low.

Reviewers don’t like these things

  • One customer complained that the item stopped working after some use.
  • A couple of buyers said that the equipment provided with the gas heater is cheap.

  • Rating 3.7 based on 14 reviews
  • 68% of the reviewers give 4+ stars to this gas water heater


9 – Iglobalbuy Co,ltd

3.5 review starsRating 3.5 based on 42 reviews

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8L 2 GPM Natural Gas Instant Household Water Heater Bath Shower Boiler Stainless Steel

Here’s what the reviewers think about the Iglobalbuy Co,ltd:

Reviewers like these things about the Iglobalbuy Co,ltd

  • Several customers laud that it heats water instantaneously.
  • Others laud the item for the ease of installation.
  • A couple of buyers mentioned that the item was delivered promptly.
  • More than few reviewers mentioned that the heater works well.
  • Several reviewers laud the good quality of item.
  • Others like that the heater is economical.

Reviewers don’t like these things

  • Some users are disappointed with the working of heater.
  • One customer complained that the heater is not provided with flue.

  • Rating 3.5 based on 42 reviews
  • 56% of the reviewers give 4+ stars to this gas water heater


10 – Iglobalbuy co,.ltd

3 review starsRating 3.1 based on 19 reviews

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Iglobalbuy 8L Natural Gas Tankless Instant Hot Water Heater Boiler with Shower Head

Here’s what the reviewers think about the Iglobalbuy co,.ltd:

Reviewers like these things about the Iglobalbuy co,.ltd

  • A couple of users admire its nice look.
  • Few customers are pleased with fast delivery.
  • Some buyers mentioned that it suitable for showering.
  • Few users laud its compact size.
  • Others like that the item is easy to setup.
  • A couple of reviewers said that the device functions well.

Reviewers don’t like these things

  • A couple of buyers complained that the heater does not work.
  • Others are disappointed as the item needs to be returned to China.

  • Rating 3.1 based on 19 reviews
  • 46% of the reviewers give 4+ stars to this gas water heater

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Notes about this top 10 list


The list was last updated 21 December 2020.

The list shows the best reviewed gas water heaters from a much bigger list of selected products. The list should not be considered a complete list of all available, excellent gas water heaters.

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