The 18 best gas water heaters brands

  • 18 brands ranked
  • Ranked by brand visibility

Rheem, Rinnai and A. O. Smith lead our ranking of 18 gas water heaters brands. Compare what each brand makes, visit its official site, or shop it online.

Gas Water Heaters brands, ranked

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  1. 1

    Rheem

    Tall natural gas tanks and Wi-Fi tankless units, with the Performance line covering most standard home installs.

    Top products: Performance Tall· ECOH200DVELN-3

    Popularity 10.0/10

  2. 2

    Rinnai

    Tankless specialist with high-output indoor and outdoor units, many rated near 180k to 199k BTU.

    Top products: RE180EN· RXP199iN· V75iN

    Popularity 8.7/10

  3. 3

    A. O. Smith

    Glass-lined steel tanks and power-vent gas models, often chosen to replace older storage heaters in standard homes.

    Top products: GT15-310U-O· GT15-240-NI

    Popularity 6.6/10

  4. 4

    CAMPLUX

    Portable propane units for camping and RV showers, mostly battery-powered and light enough to carry.

    Top products: Nano 3 Pro

    Popularity 4.6/10

  5. 5

    Bradford White

    American-made gas tank heaters, mostly storage models sold through plumbing wholesalers for homes.

    Popularity 4.5/10

  6. 6

    Navien

    Compact condensing and tankless units, including combination water heater and boiler models for homes.

    Popularity 4.2/10

  7. 7

    Noritz

    Whole-home tankless gas units with EZ series models, plus liquid propane versions for off-grid houses.

    Top products: EZ98DVNG· NRC98-OD-NG

    Popularity 3.7/10

  8. 8

    Robertshaw

    Robertshaw takes care of multiple temperature settings for your house or commercial space. The company offers heating and cooling products and services. With Robertshaw, you are assured of gaining quality with exceptional service and various models as per your need. The company also offers an innovative system for electric and gas cooking technologies. The designs are meant for both residential and commerical settings. Robertshaw provides components and elements made of premium quality material and prompt solutions.

    Popularity 3.7/10

  9. 9

    Eccotemp

    Outdoor tankless units with simple controls, popular for cabins and garden showers.

    Popularity 2.5/10

  10. 10

    Bosch

    Storage and gas tank heaters from a large European appliance maker, with a tankless line too.

    Popularity 2.3/10

  11. 11

    Westinghouse

    Licensed name on imported tankless propane units, with app and voice control on higher-output models.

    Popularity 2.2/10

  12. 12

    GASLAND

    GASLAND makes cooktops and heating appliances for the indoors and outdoors. Its portable tankless water heaters highlight the new technology it uses to create products for its clients’ convenience and benefit. The company is based in South Carolina, US and...

    Top products: Gasmart E

    Popularity 2.1/10

  13. 13

    VEVOR

    Budget RV and outdoor gas heaters with built-in temperature controllers and LED displays.

    Top products: RV Tankless Water Heater

    Popularity 2.0/10

  14. 14

    Takagi

    Wall-mounted tankless boilers and water heaters that save floor space and avoid standby losses.

    Popularity 1.6/10

  15. 15

    Eztankless

    Smaller-brand tankless units covering both portable and whole-home gas installs.

    Popularity 1.6/10

  16. 16

    Lochinvar

    Commercial-grade hot water heaters and boilers, with condensing tankless models for small businesses.

    Popularity 1.3/10

  17. 17

    AQUAH

    Indoor and outdoor tankless units in propane and natural gas, from small 6L to 16L whole-house sizes.

    Popularity 1.3/10

  18. 18

    Marey

    Recreational-focused tankless units covering outdoor, indoor and RV setups.

    Popularity 1.2/10

Gas Water Heaters Buying Guide

When it comes to choosing a water heater for your home, there are several options available in the market. However, gas water heaters are a popular choice among homeowners due to their high efficiency and quick heating capabilities. If you are planning to purchase a gas water heater, you need to consider several factors to make an informed decision. This guide will help you understand the essential features you need to look for in a gas water heater and make the right purchase decision.

1. Size and Capacity

The size and capacity of the gas water heater are the essential features you must consider before making a purchase. The size of the water heater will determine its efficiency and how much hot water it can provide in a single cycle. A gas water heater with a higher capacity can heat up more water, making it ideal for large families or properties with high hot water demand.

The water heaters are available in different sizes and capacity. The standard capacity is 40-50 gallons, which is enough to meet the hot water demand of an average household. However, if you have a larger family or high water demand, a larger capacity of 60-80 gallons will be an ideal choice. Always consider your hot water demand and the size of the water heater before making a purchase.

2. Type of Gas Water Heater

There are two types of gas water heaters available, namely storage tank water heaters and tankless gas water heaters.

Storage Tank Water Heaters

These are the traditional gas water heaters with a storage tank that stores hot water until it is needed. They are a popular choice among homeowners due to their affordability and reliability. However, they take up more space and are less efficient than tankless water heaters.

Tankless Gas Water Heaters

These are the modern gas water heater that does not come with a storage tank. They heat water on demand, which means they only consume energy when you need hot water. This feature makes them more energy-efficient, and they take up less space in your home. However, they are costly compared to storage tank water heaters and may require additional installation costs.

3. Energy Efficiency

The energy efficiency of a gas water heater is a crucial factor to consider as it will significantly impact your utility bills. Always choose a gas water heater that has high energy efficiency and is Energy Star certified. The Energy Star certification is proof that the product meets the minimum energy efficiency requirements and is an excellent energy-saving product.

The energy efficiency of the gas water heater is measured by its Energy Factor (EF) rating. The higher the EF rating, the more energy-efficient the water heater is. For example, a gas water heater with an EF rating of 0.67 is more energy-efficient than a water heater with an EF rating of 0.57.

4. Venting System

The venting system is an essential component of a gas water heater, and it ensures safe and efficient operation. The venting system works by removing the harmful gases produced during combustion, such as carbon monoxide, and expelling them outside your home.

There are two types of venting systems available for gas water heaters, namely atmospheric venting and power venting.

Atmospheric Venting

Atmospheric venting is the most common venting system used in gas water heaters. It uses natural convection to vent the harmful gases outside your home. This venting system is suitable for homes that have a vertical vent that extends through the roof of the house.

Power Venting

Power venting uses a fan or blower to expel the harmful gases outside your home. This venting system is ideal for homes that do not have a vertical vent but have a horizontal vent that extends through the wall of the house. Power venting is more expensive than atmospheric venting, but it is more efficient and safer.

5. Warranty and Repair

When purchasing a gas water heater, check the warranty and repair policies. Always choose a gas water heater that comes with a warranty to ensure that you are covered in case of any defects or repairs. The warranty may vary depending on the manufacturer and the model of the gas water heater.

Also, check the repair policy of the manufacturer and whether they have authorized repair technicians in your area. In case of any repairs, it is always better to have authorized repair technicians handle them as they are familiar with the product and can provide quality service.

Conclusion

Choosing the right gas water heater can be a daunting task due to the several options available in the market. Therefore, it is essential to consider the size and capacity, type of gas water heater, energy efficiency, venting system, warranty, and repair policy before making a purchase decision. This guide will help you understand the essential features you need to consider before purchasing a gas water heater and make an informed decision that suits your needs and budget.