When it comes to heating water in your home, selecting the best gas water heater is crucial for ensuring efficiency and reliability. In 2024, many consumers are looking for top-quality products on platforms like Amazon, and we’ve compiled a list of the top 10 gas water heaters available today. This guide will aid you in selecting the best gas water heater that meets your needs while highlighting their important features and specifications.
- One Model, Anywhere: This Rinnai tankless water heater is installable indoors or outdoors thanks to our new Versa Vent and powered by either propane or natural gas thanks to a Smart Sense gas control system; RX-OVC vent cap required for outdoor install
- Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This condensing propane and natural gas tankless water heater from Rinnai is only the size of a small suitcase, but provides up to 11.1 GPM (7 fixtures at once)
- Smart, Efficient Design: This water heater's modern design includes an easy-to-use interface, Quick Flush feature for simplified flushing, as well as a super-high energy efficiency factor of UEF .98; See Controlr module for WiFi control (not included)
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to find a qualified technician to install your tankless water heater, and use the Rinnai Central App for help with setup, service & troubleshooting; We do not recommend installing a water heater without a technician
- Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater size for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
- High-efficiency tankless gas water heater delivers up to 7.0 GPM, perfect for 2โ3 bathroom homes with multiple hot water needs like showers and laundry.
- Powered by natural gas with 160,000 BTUs, this durable tankless unit ensures fast, reliable hot waterโeven during peak household demand.
- Designed for indoor installation, this high-efficiency tankless natural gas water heater features a durable, compact metal cabinet and supports easy wall mounting by a qualified installer.
- Hot-start programming prevents cold water bursts, making this tankless natural gas water heater ideal for back-to-back showers.
- Rheem RTG tankless gas water heaters offer high-efficiency, space-saving designs with multiple models to fit any home size, fuel type, and hot water demand.
- Powerhouse Performance: The FOGATTI tankless water heater takes up a third of the space of traditional tank heaters but delivers 5 times the performance. With a high heating power of 170,000 BTU and a flow rate of 7.5 GPM, it provides endless hot water on demand, perfect for multitasking households
- Instant Heating: Unlike traditional tank heaters, this tankless water heater gas delivers instant and endless hot water as water flows through. Whether itโs for showers, sinks, or appliances, even for 3-5 outlet points, it ensures uninterrupted hot water whenever you need it
- Precision Temperature Control: With advanced water servo technology and temperature sensors, the gas tankless water heater indoor precisely adjusts water flow and gas intake to maintain a temperature difference within ยฑ1โ. The four-stage combustion system ensures consistent comfort, whether itโs a chilly winter or a hot summer
- Quick and Easy Installation: The compact design measuring 25 x 16.3 x 7.3 inches makes installation hassle-free. Tankless gas 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 copper heat exchanger and 304 stainless steel burner, this water heater offers exceptional durability and performance. Certified by CSA and equipped with multiple safety features, it meets the highest safety standards for reliable operation
- Flow rate of 0.4 - 8.4 GPM
- Available temperature settings range from 100 to 140F (default setting of 120F)
- Includes electric ignition
- Covered under 1 year labor, 15 year heat exchanger, and 5 year parts manufacturer warranties
- Width 17-11/16-in
- ๐๐ง๐ฌ๐ญ๐๐ง๐ญ ๐๐จ๐ญ ๐๐๐ญ๐๐ซ ๐๐ฎ๐ฉ๐ฉ๐ฅ๐ฒ: Orbek delivers 60,000 BTU of heat output per minute, making it ideal for meeting the demands of busy RV families. The tankless water heater features a burner that activates only when hot water is neededโsuch as for showers, dishwashing, or handwashingโthereby conserving energy. Unlike tank-type water heaters, there's no waiting for water to heat up, and no need for frequent anode rod replacements
- ๐๐ข๐ ๐ก-๐๐๐ซ๐๐จ๐ซ๐ฆ๐๐ง๐๐ ๐๐๐๐ก๐ง๐จ๐ฅ๐จ๐ ๐ฒ: Equipped with oxygen-free copper heat exchangers and brushless DC fans, it adapts to high altitudes, ensuring smooth operation even when you drive the RV to the Denver Plateau at an altitude of 9,800 feet. Staged combustion technology maintains consistent temperatures by minimizing cold spots and scalding, while conserving precious propane resources during RV travel. Enjoy endless hot waterโsimply add cold water to achieve your desired temperature
- ๐๐จ๐ฆ๐ฉ๐ฅ๐๐ญ๐ ๐๐ ๐๐๐ญ๐๐ซ ๐๐๐๐ญ๐๐ซ ๐๐๐ฉ๐ฅ๐๐๐๐ฆ๐๐ง๐ญ: Available in black or white with three door options, easily retrofits RV electric water heaters and RV instantaneous water heaters. Installation requires 15" x 15", 15" x 18", or 18" x 18" dimensions, sold separately. Orbek RV Tankless Water Heater is compatible with other tankless water heater brands, making it the ideal upgrade or replacement for your RV
- ๐๐๐๐๐ญ๐ฒ ๐๐ง๐ ๐๐๐ฅ๐ข๐๐๐ข๐ฅ๐ข๐ญ๐ฒ: The tankless RV water heater is CSA certified and features multiple safety protections, including a built-in forced-draft exhaust fan at the top for stable combustion and automatic gas shut-off in case of unexpected flame failure. Frost protection ensures the system operates reliably even in cold weather
- ๐๐ฉ๐ ๐ซ๐๐๐๐ ๐๐๐ซ๐ฌ๐ข๐จ๐ง: Orbek has always thought of you, featuring a built-in high-quality 150 PSI pressure-reducing valve so you don't need to make additional purchases or visit hardware stores frequently, saving you time and money. The smart remote control effortlessly adjusts water temperature from 95ยฐF to 123ยฐF. It also displays error codes for quick troubleshooting, making operation simple and stress-free
- [Max 5 GPM & 113,000 BTU] โ The ThermoMate instant hot water heater delivers hot water on-demand for two showers at the same time, maintaining a stable 105ยฐF (based on 65ยฐF inlet temperature). No waiting, no cold-water interruptionsโperfect for busy homes. Its smart flow sensor and control chip adjust heating 20,000 times per second, ensuring ยฑ1ยฐF temperature consistency.
- [Safety & Reliable] - This gas tankless water heater integrates 8 protections: boil-dry, freeze, flame-out, overheating, over-temperature, pipe blockage, high-temperature lock, and excessive air pressure. Equipped with 4 ceramic heating cores, it auto-activates frost protection when temperatures hit 41ยฐF (5โ). The energy-smart system uses minimal electricity to generate gentle warmth, preventing pipe ice buildup without high energy costs.
- [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] - Easily adjust water temperature (90โ140ยฐF) and keep track of flow, fan, and flame status on the 3.5-inch LED display. Advanced error codes allow fast troubleshooting, while the UL-certified 120V/5-foot cord keeps the system powered and monitored at all times.
- [Easy to Install & Save Space] โ Designed for whole house use, this indoor water heater measures only 21"H ร 13"W ร 7"D and occupies less than one-third of the space of traditional water heater models. Standard 3/4" NPT water inlet/outlet connections, a 1/2" NPT gas inlet, 3" OD vent, and UL-approved 120V plug make installation simple in most homes.
- High-efficiency tankless gas water heater delivers up to 7.0 GPM, perfect for 2โ3 bathroom homes with multiple hot water needs like showers and laundry.
- Powered by natural gas with 160,000 BTUs, this durable tankless unit ensures fast, reliable hot waterโeven during peak household demand.
- Designed for outdoor installation, this high-efficiency tankless natural gas water heater features a durable metal cabinet and supports easy wall mounting by a qualified installer.
- Hot-start programming prevents cold water bursts, making this tankless natural gas water heater ideal for back-to-back showers.
- Rheem RTG tankless gas water heaters offer high-efficiency, space-saving designs with multiple models to fit any home size, fuel type, and hot water demand.
- Powerful On-Demand Heating: 100,000 BTU & 4.3 GPM for this tankless water heater gas, supports 3-4 water points simultaneously, delivers endless hot water on demand with no waiting.
- 4 Intelligent Preset Modes: One-click switch for 4-season/Kitchen/Bathtub/Shower modes; 4-season auto-matches temp, kitchen defaults to 100ยฐF, bathtub supports 50-800L volume adjustment.
- Precision Temp Control: Gas-water-temperature intelligent linkage, 95ยฐF-155ยฐF adjustable range, high-temp lock prevents scalding, safe for kids and elders.
- Oxygen-Free Copper Heat Exchanger: Enhances heat transfer efficiency, corrosion-resistant and durable; paired with enhanced combustion tech for energy saving.
- All-Round Safety & Anti-Freeze Protection: Equipped with dedicated anti-freeze device, resists 14ยฐF/-10ยฐC low temperature to effectively prevent pipe freezing and cracking; plus overheat, dry burn, exhaust blockage and low water pressure startup protection; powerful fan exhaust prevents CO leakage.
- [Professional 199k BTU Tankless Water Heater]: Experience uninterrupted hot water delivery with 10.3 GPM flow capacity, designed to support large households with 5-7 fixtures simultaneously, providing hot water only when needed, making it an economically smart choice
- [Smart WiFi Connectivity for Remote Management]: Control and monitor your gas tankless water heater from anywhere using the dedicated mobile application. Adjust temperature settings, create custom schedules, receive maintenance alerts, and track energy usage through your smartphone
- [Comprehensive Safety Protection]: Features 16+ integrated safety mechanisms including freeze protection (-13ยฐF operational), anti-dry firing, flame failure detection, exhaust blockage monitoring, and automatic shutdown systems
- [Sealed Direct Vent System]: Mizudo natural gas tankless water heater indoor features a closed combustion design that draws 100% external air for combustion, preserving indoor air quality without affecting your home's environment.3"x5" direct vent kit for tankless water heaters need to be purchased separately
- [Premium Construction with Durable Components]: Built with industrial-grade materials including phosphorous-deoxidized copper heat exchanger and stainless steel combustion chamber for long-lasting reliability, corrosion-resistant components ensure this water heater years of dependable service with minimal maintenance requirements
- ๐๐ง๐ฌ๐ญ๐๐ฅ๐ฅ๐๐ญ๐ข๐จ๐ง ๐๐ง๐ ๐๐จ๐ฆ๐ฉ๐๐ญ๐ข๐๐ข๐ฅ๐ข๐ญ๐ฒ โ Designed for most 4โ6 gallon RV water heater cutouts. Product dimensions are 21" ร 12.8" ร 12.8". Installation requires at least 3" additional depth for pipe connection space. Standard 1/2" NPT water connections are used. Gas line connection is recommended with flexible hoses
- ๐๐ฎ๐๐ฅ ๐ ๐ฎ๐๐ฅ ๐๐ฒ๐ฌ๐ญ๐๐ฆ & ๐ ๐ฅ๐๐ฑ๐ข๐๐ฅ๐ ๐๐๐๐ญ๐ข๐ง๐ ๐๐จ๐๐๐ฌ โ Supports propane gas and electric heating for RV applications. Gas mode uses 12V DC ignition powered by the RV system. Electric mode operates with 120V AC power when available. Heating modes can be selected based on usage needs, including gas for efficient operation, electric for stable heating, or combined use for faster hot water recovery during higher demand
- ๐๐ง๐ฌ๐ญ๐๐ฅ๐ฅ๐๐ญ๐ข๐จ๐ง ๐๐ฎ๐ฉ๐ฉ๐จ๐ซ๐ญ ๐๐ง๐ ๐๐ฌ๐ฌ๐ข๐ฌ๐ญ๐๐ง๐๐ โ Quick Installation Guide is included. 24/7 customer support with trained technicians is available to assist with installation and usage questions. Support is available to help ensure proper setup and operation when needed
- ๐๐ซ๐๐๐ข๐ฌ๐ ๐๐๐ฆ๐ฉ๐๐ซ๐๐ญ๐ฎ๐ซ๐ ๐๐จ๐ง๐ญ๐ซ๐จ๐ฅ ๐๐จ๐ซ ๐๐๐ข๐ฅ๐ฒ ๐๐ฌ๐ โ One-touch temperature settings at 104ยฐF, 122ยฐF, and 140ยฐF allow easy adjustment for different seasons and usage needs. Heating modes can be switched between gas, electric, or combined operation for stable and comfortable hot water supply
- ๐ ๐๐๐ฅ๐ฅ๐จ๐ง ๐๐ ๐๐๐ง๐ค ๐๐๐ซ๐๐จ๐ซ๐ฆ๐๐ง๐๐ โ 6 gallon storage tank provides steady hot water output for showers and daily RV use. Helps maintain more consistent water temperature compared to tankless systems, supporting short showers, rinsing, and intermittent use in RV environments
Top 10 Best Gas Water Heaters on Amazon in 2024
1. Rheem Performance 40 Gal. Natural Gas Water Heater
The Rheem Performance series is a popular choice among homeowners, boasting a reliable 40-gallon capacity that provides ample hot water for families. It features a 30,000 BTU/hour environmentally friendly burner and a maintenance-free design, offering superior performance over electric models. This water heater also includes a 6-year limited warranty on the tank and parts, ensuring peace of mind.
Additionally, the Rheem Performance has an easy-to-use temperature control and a self-cleaning dip tube that improves efficiency by preventing sediment buildup. For those in search of the best gas water heater, the Rheem Performance is an excellent choice that combines efficiency and reliability.
- Rheemglas lined tank
- R-Foam insulation
- Anode Rod protects against corrosion
- Automatic temperature control thermostat
- Direct immersion heating element
2. A.O. Smith GPVH-50 50-Gallon Gas Water Heater
A.O. Smith is another trusted name in the water heater industry, and the GPVH-50 is a standout model. This 50-gallon water heater features a powerful 40,000 BTU gas burner, ensuring a quick recovery rate for any household demands. The pressure relief valve and anode rod are excellent additions for durability and safety. It also comes with a 6-year limited warranty.
The GPVH-50 is designed with an energy-efficient, eco-friendly profile, making it one of the best gas water heaters for those who wish to lower their utility bills while maximizing performance. With its automatic safety shut-off, you can rest assured that your family is safe from any hazards.
- Power-vent
- 90-Percent thermal efficiency
- Sidewall and vertical vent options
- Includes Side Taps for Simple Installation
- Vent Size: 2
3. Bradford White RG250T6N 50 Gallon Natural Gas Water Heater
The Bradford White RG250T6N is a sturdy option known for its reliability and efficiency. With a 50-gallon tank capacity and a 40,000 BTU burner, it delivers a high recovery rate. It features advanced insulation that helps maintain temperature, ensuring lower energy costs.
The precise thermostat settings allow for customized temperature control, making it user-friendly and efficient. This model also comes with a 6-year limited warranty, making it a solid investment for long-term home comfort.
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4. Ecosmart ECO 27 Tankless Water Heater
For those looking for an energy-efficient option, the Ecosmart ECO 27 is a fantastic tankless gas water heater that heats water on demand rather than storing it in a tank. This model delivers an impressive flow rate of 6.5 gallons per minute, making it perfect for large households.
Its compact design frees up space, while the self-modulating technology ensures that you only use energy when hot water is required. If you are aiming for an eco-friendly and efficient system, the Ecosmart ECO 27 is considered one of the best gas water heaters available today.
- Configured for climates where incoming water temperature can reach as low as 37 degrees.
- Capable of heating nearly 3 gpm.
- Digital temperature control allows temperature settings in 1 degree increments.
- Voltage - 240
- Single phase
5. Camplux 5L Outdoor Portable Gas Water Heater
If you are looking for something portable, the Camplux 5L Outdoor Gas Water Heater is ideal for camping, cabins, or any outdoor activity. This heater provides hot water on demand with a rated output of 5 liters per minute, powered by propane gas.
Its lightweight design, combined with an easy ignition system, makes it user-friendly. Additionally, the safety features, including anti-freezing protection and flame failure device, rank it among the best gas water heaters for outdoor use. Priced affordably, it is great for those who enjoy outdoor adventures without sacrificing comfort.
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6. Takagi T-KJr2-IN-NG Indoor Tankless Water Heater
The Takagi T-KJr2-IN-NG is another exceptional tankless gas water heater known for its reliability and energy efficiency. This model is suitable for small to medium-sized homes and delivers an impressive 6.6 gallons per minute. It features enhanced safety measures, including a temperature lock and freeze protection.
The compact design ensures easy installation, making it a great fit for tight spaces. It is particularly favored for its long warranty of 15 years on the heat exchanger, making it a long-lasting choice for buyers seeking the best gas water heater options.
- Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
- Computerized safety features, No pilot light to have to worry about
- Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions
7. Rinnai RUC98iN Ultra Series Natural Gas Tankless Water Heater
The Rinnai RUC98iN is a premium option that sets the standard for tankless water heating. Known for its efficiency and performance, this model can deliver up to 9.8 gallons per minute, making it suitable for large households. Its recirculation technology ensures that hot water is always available when needed.
Moreover, it is equipped with a Wi-Fi module for smart home compatibility and user-friendly temperature control. While it comes at a higher price point, the features and reliability make the Rinnai RUC98iN one of the best gas water heaters available in 2024.
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8. Noritz NRC661-DV-NG Outdoor Tankless Water Heater
The Noritz NRC661-DV-NG is specifically designed for outdoor installation, providing an energy-efficient solution with a low NOx emission rating, making it environmentally friendly. This model can deliver 6.6 gallons per minute, allowing for multiple outlets to be used simultaneously, ideal for larger homes.
The compact design allows for easy installation, while the durable build ensures long-lasting performance. With a warranty of 15 years on the heat exchanger, this model is ideal for those looking for high-efficiency and something robust.
- Endless hot water
- Can be vented with Schedule 40 PVC Pipe and Fitting
- High Efficiency
- Low Nox
- Remote thermostat & 6' power cord included
9. Ruud 40 Gallon Natural Gas Water Heater
The Ruud 40 Gallon Water Heater offers efficient performance and reliability, featuring a 40,000 BTU burner and a 40-gallon tank. Its glass-lined tank with a sacrificial anode rod protects against rust and corrosion, extending its lifespan significantly.
Furthermore, it has a self-diagnostic system that simplifies troubleshooting and maintenance. If youโre in search of a dependable and compact model, the Ruud 40 Gallon is worth considering for your home.
- Low Emissions: Eco-friendly burner, low Knox design, Meets 40 ng/J Knox requirements
- Rheum exclusive R-Tech (registered) anode rod provides long-lasting tank protection
- Easy to light - no matches required. EverKleen patented system fights sediment build-up
- Enhanced-flow brass drain valve - Low lead compliant
- This new Model number replaces the old Model number 42VR50-36PF
10. American Water Heaters 40-Gallon Natural Gas Water Heater
The American Water Heaters model is designed for durability and efficiency. It features a 40-gallon tank with a fast heating system, ensuring a quick supply of hot water. The heaterโs energy factor rating ensures lower operating costs while providing consistent temperature control.
It comes with a 6-year limited warranty, giving consumers confidence in their investment. This water heater is a solid choice for anyone searching for the best gas water heater that balances affordability and performance.
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Buying Guide for the Best Gas Water Heater
When selecting the best gas water heater for your home, consider the following factors:
1. Type of Water Heater
Choose between traditional storage tank water heaters or tankless models. Storage tank heaters store hot water, while tankless systems heat water on demand, which can save space and energy in the long run.
2. Energy Efficiency
Look for units with an Energy Factor (EF) rating. The higher the EF rating, the more efficient the water heater is. Energy-efficient models can drastically reduce your utility bills.
3. Capacity
Consider your household’s hot water needs. A 40-gallon tank is often sufficient for a family of 3-4, while larger families may require 50 gallons or more. Tankless models offer continuous hot water but require careful calculations regarding water demand.
4. BTU Rating
The BTU rating indicates the heating power of the unit. Higher BTU ratings mean quicker heating and recovery times.
5. Warranty and Customer Support
Check the warranty provided by the manufacturer. A longer warranty usually indicates the manufacturer has confidence in the productโs durability. It’s also essential to consider customer support services.
6. Installation and Maintenance
Consider the ease of installation, especially if you plan to do it yourself. Moreover, regular maintenance is crucial for longevity; choosing a model with easy maintenance features will save you effort down the line.
7. Price
Finally, consider your budget. While it’s tempting to go for the cheapest option, investing in quality equipment can save you money in the long term through lower energy costs and reduced maintenance needs.
By keeping the above criteria in mind and choosing from our top 10 list, you can select the best gas water heater for your home in 2024, ensuring comfort and reliability for years to come. Happy shopping!
Last update on 2026-06-22 / Affiliate links / Images from Amazon Product Advertising API | hishecozy.com is a participant in the Amazon Associate program and will earn from qualifying purchases.
