Best 30 Gallon Gas Water Heater

Peter | 12-04-2025

Navigating the many Best 30 Gallon Gas Water Heater options on the market – from major brands like Ranein,GE,Rheem,thermomate,Orbek to lesser-known names – can feel overwhelming. But we’re here to help simplify your search for the best products.

After extensive research testing hundreds of Best 30 Gallon Gas Water Heater, we’ve selected the top contenders. Our number one recommendation is Ranein Best 30 Gallon Gas Water Heater based on its stellar performance and quality. Below you’ll find more of our top-rated picks for the best Best 30 Gallon Gas Water Heater currently available.

Be sure to consult our handy buying guide as well for expert tips on choosing the right Best 30 Gallon Gas Water Heater to suit your individual needs. It has all the crucial information you need to make an informed purchasing decision. With our guidance backing your choice, finding your perfect match will be smooth sailing!

Editor's Choice
Ranein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Ranein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Premium Pick
GE Appliances 30 Gallon Electric Water Heater with Adjustable Thermostat, Short, 240 Volt
GE Appliances 30 Gallon Electric Water Heater with Adjustable Thermostat, Short, 240 Volt
Budget Pick
Rheem PROE30 T2 RH95 30-Gallon Professional Classic Electric Water Heater; 240VAC; Dual 4500-Watt
Rheem PROE30 T2 RH95 30-Gallon Professional Classic Electric Water Heater; 240VAC; Dual 4500-Watt

Top 10 Best 30 Gallon Gas Water Heater

We researched and compared the top products in the Best 30 Gallon Gas Water Heater category to provide you with these recommendations.

1. Ranein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater

  • Performance: The on-demand tankless water heater boasts a heating capacity of 80,000 BTU and a hot water flow rate of 3.6 gallons per minute (GPM). It can provide continuous hot water for 2-3 water supply points, making it sufficient to meet the hot water needs of a household's bathroom, kitchen, and bar area.
  • No Waiting Required: Unlike traditional tank water heaters, tankless water heaters eliminate the need for a 30-minute preheating wait time, allowing you to have unlimited hot water on demand.
  • Provides 4 modes: Dish mode(100), Fruit mode(95), Elderly mode(104) and Infant mode(107). More convenient for you to use.
  • Save Money: The kit already includes the exhaust pipe, so you don't need to spend extra money on purchasing it separately. With an oxygen-free copper water tank, it reduces heat loss and lowers energy consumption. Applied with standard 1/2" NPT water fitting and gas inlet.
  • Recommendation: We strongly advise that all installations of the device adhere to local building and plumbing regulations at the installation location, and should be carried out by licensed professionals.(Not recommended for areas over 2,000 feet)

2. GE Appliances 30 Gallon Electric Water Heater with Adjustable Thermostat, Short, 240 Volt

  • REAL CAPACITY - Get the most hot showers from the only electric water heater that holds a true 30 gallons of water (Compared to 30 gallon electric steel tank water heaters per DOE rated gallon capacity)
  • MAXIMUM PERFORMANCE - Best in class unit that delivers 53 gallons of hot water in the first hour of use (Measured through DOE First Hour Rating)
  • HOUSEHOLD SIZE - Provide hot water for the whole family of 1 to 3 persons
  • EASY SET UP - Replace your old water heater quickly and easily using standard water and electrical connections
  • QUICK RECOVERY - Two powerful, 5500W heating elements ensure available hot water quickly after each use
  • INLET TUBE - Replenishes water from the bottom of the tank to maximize hot water delivery
  • ANODE ROD - Durable design extends the life of your water heater with long-lasting protection against corrosion

3. Rheem PROE30 T2 RH95 30-Gallon Professional Classic Electric Water Heater; 240VAC; Dual 4500-Watt

  • 30 Gal. tank provides ample hot water for households with 1 people to 2 people
  • Delivers 48 Gal. of hot water in the first hour
  • Requires a 240-Volt connection for installation
  • 0.92 uniform energy factor signifies an energy efficient water heater
  • Dual 4500-Watt heating elements
  • Automatic thermostat keeps water at your desired temperature
  • Tall tank fits in a variety of indoor applications
  • Factory installed temperature and pressure relief valve and 3/4 in. water connections are included

4. ThermoMate 102,000 BTU 4.7 GPM Natural Gas Tankless Water Heater, High Efficiency Instant On-Demand

ThermoMate 102,000 BTU 4.7 GPM Natural Gas Tankless Water Heater, High Efficiency Instant On-Demand
8.9

Thermomate

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  • [4.7 GPM & 102,000 BTU] - The ThermoMate instant hot water heater delivers consistent hot water to 3-4 fixtures simultaneously, allowing you to have unlimited hot water on demand. No waiting time, no cold water shocks, perfect for busy households. Adopting advanced water flow sensor, the built-in chip can adjust the heating power 20,000 times per second, ensuring that the hot water within 1 fluctuations for a comfortable shower experience.
  • [Safety & Reliable] - The gas tankless water heater comes standard with a range of safety features including boil-dry burning protection, Freeze protection, Flame out protection, Overheating Protection, Over temperature protection, Timeout protection, Pipe blockage protection, High-Temperature Lock Protection, Excessive Air Pressure Protection.
  • [Energy Efficient & Save Money] - The heat exchanger is constructed from high-quality oxygen-free copper, providing superior thermal conductivity and corrosion resistance compared to stainless steel. It achieves a thermal efficiency of 98% (vs. 80% for stainless steel models) and boasts a uniform energy factor (UEF) of 0.81. This design reduces energy waste, lowering annual operating costs by approximately 30% versus traditional systems.
  • [Smart Diagnostic Display] - Equipped with a 3.5-inch LED touchscreen, it allows you to effortlessly adjust and monitor output water temperature90F to 140Fwhile providing real-time tracking of water flow, fan operation, and flame status. Advanced error code technology enables rapid diagnosis of water heater malfunctions. The UL-certified 120V/5-foot power cord ensures continuous power supply for real-time monitoring systems.
  • [Easy to Install & Save space] - The whole house tankless water heater features standard 3/4" NPT water inlet/outlet connectors, a 1/2" NPT gas inlet, a 3" OD vent, and a UL-approved 120V plug, ensuring compatibility with most households. With its compact dimensions of 21"H x 13"W x 7"D, the on-demand water heater requires less than one-third of the space occupied by traditional tank models, freeing up valuable room in your home.
  • [Wind Resistant] - Engineered with a DC High-speed Fan (360Pa static pressure/3000 RPM), the system ensures high-velocity exhaust evacuation capable of withstanding Category 10 typhoon-force winds. This design eliminates safety risks such as backdraft and flameouts during extreme weather conditions.

5. Natural Gas Tankless Water Heater - ORBEK 100,000 BTU Up to 4.3 GPM Indoor Installation - CSA

  • Endless On-Demand Hot Water: The Orbek tankless water heater gas provides up to 4.3 GPM and 100,000 BTU, serving 2-3 fixtures simultaneously for comfortable use throughout your home
  • Safety & Reliable: The Orbek tankless gas water heater is CSA certified and packed with advanced safety features, including dry combustion protection, overheat protection, water leakage protection, flame failure protection, and high water pressure protection etc
  • Energy Efficient: Crafted from high-quality oxygen-free copper, the Orbek heat exchanger delivers superior heat transfer and corrosion resistance. It can adjust between three heating modes to meet seasonal hot water needs, saving energy costs for you
  • Compact Design: With a compact size of 20.5"H x 13.0"L x 7.0"W, gas tankless water heater indoor saves over 50% of space compared to traditional tank water heaters, fitting easily into most corners of your home
  • Stable Temperature Control: The built-in chip adjusts heating power 20,000 times per second, keeping water temperature stable within 1F for a comfortable shower experience
  • LED Digital Display: The Orbek natural gas tankless water heater indoor features a clear screen for sensitive temperature adjustments between 95F and 149F. The power outage memory function ensures you won't have to reset the temperature repeatedly
  • Water Pressure Range: The Orbek tankless water heater natural gas indoor is equipped with low water pressure start technology, allowing it to operate at water pressures ranging from 15 to 150 PSI, even in remote homes far from city centers. Additionally, the operational noise is very low, ensuring it will not disturb your family
  • Easy to Install: Applied with a standard 3- inch OD vent, 3/4" NPT connector size and 120V AC voltage. it's compatible with most homes. Professional installation is recommended for better performance and safety

6. thermomate Tank Water Heater Electric, 18 Gallon Small Point of Use Hot Water Heater for Washing &

thermomate Tank Water Heater Electric, 18 Gallon Small Point of Use Hot Water Heater for Washing &
8.5

Thermomate

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  • 18 Gallons point of use storage water heater provides ample hot water for sink washing, dishwasher, washing machine or 20 - 25mins shower. Factory setted temperature to 125F. It can be adjusted from 90F to 150F through built-in thermostat
  • 25.5-inch low profile compact small water heater (120 Volt Hard Wired), independent installation or as booster in-line with a large hot water source, ideal for kitchen & bathroom sink, RV & boat, vacation cabin & camper, garage & barn, shop & salon
  • INCOLOY-800 heating element better corrosion resistance performance and more efficient than copper at higher temperature, thus has a longer life span and energy saving
  • Corrosion Resistant Tank Inner tank was coated with porcelain enamel glass, which has better performance in resistant to high temperature and rust, reducing leaking chance, thus ensuring a long life service and low maintenance
  • UL Listed safety including ASME, ANSI and CSA (AGA) approved T&P relief valve, independent drain port, high temperature limit protection and adjustable thermostat
  • Peace of Mind - Water connection: 3/4" NPT; Electrical requirements: 1500W at 120 Volts (AC); Recommended circuit breaker: 15AMPMaximum water pressure: 150 PSI.

7. Bradford White 30 Gallon - 32,000 BTU Defender Safety System Atmospheric Vent Energy Saver

Bradford White 30 Gallon - 32,000 BTU Defender Safety System Atmospheric Vent Energy Saver
8.3

Generic

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  • Intended Household: 1 Person, Fuel Type: Natural Gas, Capacity (Gallons): 30, BTU Input: 32000, 1st Hour Delivery (Gallons): 58
  • Venting: Atmospheric, Vent Size: 3 x 4, Height (Inches): 59.75", Diameter (Inches): 18", Weight (lbs): 118 lbs
  • Energy Factor: 0.64, Energy Star Rated: No, Max Altitude (Feet): 2000, Gas Connection: 1/2", Water Connection: 3/4"
  • Recovery Efficiency: 79%, Warranty: 6-Year Limited Tank/ 6-Year Limited on Component Parts, Application: Plumbing

8. Mizudo Natural Gas Tankless Water Heater 3.6 GPM, 80,000 BTU Indoor Installation Instant Hot Water

  • Instant Hot Water HeaterTankless water heaters can provide endless hot water on demand for 2- 3 water points.
  • Comfortable Bathing Experience3.6 GPM hot water flow, precise temperature control, no water temperature sandwich.
  • Premium design and DurableAdopt oxygen-free copper water tank, reduce heat loss, high efficiency and durability.
  • Compact DesignSave over 50% of available space compared to tank water heater.
  • Quality ServiceIf you encounter product quality problems, you can contact us by phone, email and message, and we will provide service according to the warranty policy.

9. State Proline Atmospheric Vent Series 40 Gallon Capacity 40,000 BTU Heating Input Short Gas Water

State Proline Atmospheric Vent Series 40 Gallon Capacity 40,000 BTU Heating Input Short Gas Water
7.9

Generic

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  • 67 Gallons per Hour First Hour Rating
  • 0.58 Uniform Energy Factor Rating
  • 41 Gallons per Hour Recovery at 90F Rise
  • Dimensions: 48" H x 22" D

10. FOGATTI Natural Gas Tankless Water Heater - Outdoor Installation Up to 8.1 GPM, Gray Instant Hot

FOGATTI Natural Gas Tankless Water Heater - Outdoor Installation Up to 8.1 GPM, Gray Instant Hot
7.7

Fogatti

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  • Instant Hot Water: Say goodbye to preheating delays! FOGATTI tankless water heater delivers continuous hot water instantly, powered by 180,000 BTU and up to 8.1 GPM flow rate. Whether its for showers, sinks, or appliances, even for 3-5 outlet points, it ensures uninterrupted hot water
  • Built for Outdoor Durability: Designed specifically for outdoor installation, this tankless water heater gas features a remote control panel for convenient indoor operation. The bottom-mounted fan enhances safety, durability, and lifespan by preventing smoke backflow and ensuring stable combustion, making it reliable in all seasons
  • Precision Temperature Control: With advanced water servo technology and temperature sensors, the tankless gas water heater precisely adjusts water flow and gas intake to maintain a temperature difference within 1. The four-stage combustion system ensures consistent comfort, whether its a chilly winter or a hot summer
  • Quick and Easy Installation: The compact design measuring 26.2 x 17.1 x 7.1 inches makes installation hassle-free. The gas tankless water heater is compatible with low water pressure from 15-150 PSI, ensuring smooth operation even in areas with weaker water pressure. Simply connect to a standard 120V AC for seamless operation
  • Trusted Quality and Support: Built with a high-efficiency oxygen-free copper heat exchanger and 304 stainless steel burner, this tankless water heater gas outdoor offers exceptional durability and performance. Certified by CSA and equipped with multiple safety features, it meets the highest safety standards, ensuring reliable and secure operation
  • Reliable Protection and Support: FOGATTI water heater includes 2 years of full coverage for the entire unit and 5 years of coverage for the heat exchanger. Our dedicated customer support team is ready to assist with any questions or concerns, providing peace of mind for you
  • Note: Natural gas tankless water heater is equipped with active heating anti-freeze device, If enviroment temp drop below 5 or not be used for long period, drain the water inside to prevent damage. For optimal performance, recommended for use below 2000 feet altitude

Peter

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