Best Gas Water Heaters Updated May 2025

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Best Gas Water Heaters
2025 Buyer's GuideUpdated May 2025
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9.7

1

9.7

GASLAND BE158 Propane Tankless Water Heater 6L, Outdoor Portable Hot Water Heater, Overheating Protection, Easy to Install, Use...
Functionality
Ease of installation
Outdoor shower
Temperature control
Picked by 311 people this month!
Picked by 311 people this month!

9.7

1
GASLAND BE158 Propane Tankless Water Heater 6L, Outdoor Portable Hot Water Heater, Overheating Protection, Easy to Install, Use...
Functionality
Ease of installation
Outdoor shower
Temperature control

9.6

2

9.6

RV Tankless Water Heater without Door, KINGRVER, Propane Gas, DC 12V, 3 Optional Door Sizes 15"x15", 15"x18" and 18"x18" for Re...
Ease of installation
Functionality
Water temperature
Fit
Quality
Value for money

9.6

2
RV Tankless Water Heater without Door, KINGRVER, Propane Gas, DC 12V, 3 Optional Door Sizes 15"x15", 15"x18" and 18"x18" for Re...
Ease of installation
Functionality
Water temperature
Fit
Quality
Value for money

9.4

3

9.4

FOGATTI Natural Gas Tankless Water Heater - Outdoor Installation Up to 8.1 GPM, Gray Instant Hot Water Heater - Instagas Comfor...
Functionality
Ease of installation
Value for money

9.4

3
FOGATTI Natural Gas Tankless Water Heater - Outdoor Installation Up to 8.1 GPM, Gray Instant Hot Water Heater - Instagas Comfor...
Functionality
Ease of installation
Value for money

9.3

4

9.3

Ranein Propane Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Works great
Water temperature
Ease of installation
Value for money
Space saving
Energy efficiency

9.3

4
Ranein Propane Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Works great
Water temperature
Ease of installation
Value for money
Space saving
Energy efficiency

9.1

5

9.1

Amazon Basics 46,000 BTU Outdoor Propane Patio Heater with Wheels, Commercial & Residential, Havana Bronze, with Water Tank, 32...
Functionality
Heat output
Ease of assembly
Value for money
Looks nice

9.1

5
Amazon Basics 46,000 BTU Outdoor Propane Patio Heater with Wheels, Commercial & Residential, Havana Bronze, with Water Tank, 32...
Functionality
Heat output
Ease of assembly
Value for money
Looks nice

9.0

6

9.0

Tankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural Water Heater with Fahrenheit...
Value for money
Ease of installation
Build quality

9.0

6
Tankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural Water Heater with Fahrenheit...
Value for money
Ease of installation
Build quality

8.8

7

8.8

CAMPLUX Tankless Water Heater Outdoor, 1.32 GPM Portable Propane Camping Water Heater, 5L, AY132, White
Works great
Water temperature
Ease of setup
Value for money
Shower size

8.8

7
CAMPLUX Tankless Water Heater Outdoor, 1.32 GPM Portable Propane Camping Water Heater, 5L, AY132, White
Works great
Water temperature
Ease of setup
Value for money
Shower size

8.6

8

8.6

Natural Gas Tankless Water Heater, MIZUDO Up to 3.6 GPM, 80,000 BTU, CSA Certified, Indoor Installation Instant Hot Water Heate...
Functionality
Ease of installation
Water heating
Quality
Value for money

8.6

8
Natural Gas Tankless Water Heater, MIZUDO Up to 3.6 GPM, 80,000 BTU, CSA Certified, Indoor Installation Instant Hot Water Heate...
Functionality
Ease of installation
Water heating
Quality
Value for money

8.3

9

8.3

Natural Gas Tankless Water Heater MIZUDO Up to 5.1 GPM, 120,000 BTU, Outdoor Installation Only, Instant Hot Water Heater, CSA C...
Functionality
Ease of installation
Water heating
Quality
Value for money

8.3

9
Natural Gas Tankless Water Heater MIZUDO Up to 5.1 GPM, 120,000 BTU, Outdoor Installation Only, Instant Hot Water Heater, CSA C...
Functionality
Ease of installation
Water heating
Quality
Value for money

8.1

10

8.1

Ranein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Works great
Water temperature
Ease of installation
Value for money
Space saving
Energy efficiency

8.1

10
Ranein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Works great
Water temperature
Ease of installation
Value for money
Space saving
Energy efficiency

Our Top Choice

9.7

1

9.7

GASLAND BE158 Propane Tankless Water Heater 6L, Outdoor Portable Hot Water Heater, Overheating Protection, Easy to Install, Use...
Functionality
Ease of installation
Outdoor shower
Temperature control
Picked by 311 people this month!
Picked by 311 people this month!

9.7

1
GASLAND BE158 Propane Tankless Water Heater 6L, Outdoor Portable Hot Water Heater, Overheating Protection, Easy to Install, Use...
Functionality
Ease of installation
Outdoor shower
Temperature control