10 Best Gas Hot Water Heaters To Buy We've Tested: Top Rate | SHR

Source: Amazon

Best Compact Gas Water Heater: Rheem Natural Gas Condensing Tankless Water Heater Indoor 

Pros:

• Fast Hot Water Flow

• Energy Efficient

• Durable Stainless Steel Build

• Long Warranty Coverage

Cons:

• Requires Vent Installation

The Rheem 9-Gallon Natural Gas Water Heater stands out for its strong combination of performance and compact design. With a flow rate ranging from 0.4 to 9 GPM, it easily adapts to varying household demands, ensuring consistent hot water even during peak usage. Its stainless steel construction offers excellent durability and corrosion resistance, while the LED display and Hot Start Programming provide convenient, user-friendly operation. The unit’s overheat film wrap enhances safety, and its direct vent system ensures clean, efficient combustion.

From a customer perspective, this model is well-regarded for its steady temperature control and quick heating capability, especially in smaller homes or apartments. Users appreciate the energy savings and low maintenance needs, though installation can be more complex due to the venting requirement. Overall, it delivers reliable hot water performance backed by Rheem’s solid warranty and build quality.

Best Smart Temperature Control: ORBEK 100,000 BTU Residential Indoor Natural Gas Tankless Water Heater

Pros:

• Stable Temperature Precision

• High Safety Protection

• Energy-Saving Copper Exchanger

• Space-Saving Compact Design

Cons:

• Limited Flow for Large Homes

The Orbek 4.3-Gallon Natural Gas Tankless Water Heater delivers a balance of power, safety, and compact performance ideal for small to medium households. With a 4.3 GPM flow rate and 100,000 BTU capacity, it provides reliable on-demand hot water for up to three fixtures simultaneously. The advanced copper heat exchanger enhances energy efficiency and corrosion resistance, while multiple safety layers—such as overheat, flame failure, and high-pressure protection—ensure peace of mind during daily use.

Its intelligent heating chip stands out, adjusting power 20,000 times per second to maintain a consistent temperature within 1°F, an impressive feature in this price range. The LED digital display allows precise control, and the memory function saves your preferred settings even after power interruptions. From a customer perspective, users appreciate its quiet operation, easy installation, and energy savings. However, those with larger families or high-demand usage may find the 4.3 GPM flow slightly limited for simultaneous showers or heavy water use. Overall, it’s a dependable, safe, and efficient option for compact living spaces.

Best Outdoor Propane Heater: Camplux Tankless Water Heater, 4.22 GPM Propane Water Heater Gas

Pros:

• Quick Hot Water Flow

• Multiple Safety Protections

• Battery-Powered Convenience

• Easy Installation

Cons:

• Not Ideal for Indoor Use

The Camplux BW422G Tankless Water Heater is a reliable outdoor option built for portability and performance. Delivering 4.22 GPM of hot water, it provides instant heating without the long wait typical of traditional units. The design runs on a standard 20 lb propane cylinder and is powered by two D-size batteries, allowing full operation even in off-grid environments. Its six-in-one protection system, including anti-freeze, flame failure, and overheat safeguards, ensures safe and stable performance in a variety of outdoor settings.

The LED temperature display and adjustable ECO and FULL knobs give users precise control over water output, making it easy to maintain comfort while conserving fuel. Lightweight at just over 26 pounds, it’s ideal for camping, poolside use, or remote cabins where electricity isn’t accessible. From a customer standpoint, the Camplux BW422G earns praise for its fast heating, simplicity, and safety features. However, because it’s designed for outdoor applications, it may not suit those seeking a permanent indoor installation. Overall, it’s a dependable and versatile solution for on-the-go hot water needs.

Best Compact Indoor Propane Heater: ORBEK 80,000 BTU Residential Indoor Propane Gas Tankless Water Heater

Pros:

• Smart Temperature Stability

• High Safety Standards

• Energy-Efficient Copper Exchanger

• Quiet Operation

Cons:

• Installation Requires Vent Kit

The Orbek 3.6-Gallon Propane Tankless Water Heater offers reliable, efficient performance in a compact form ideal for smaller households. With an output of 80,000 BTU and a flow rate of 3.6 GPM, it comfortably supports one to three fixtures, ensuring consistent hot water on demand. The oxygen-free copper heat exchanger enhances both heat transfer and corrosion resistance, while the CSA certification and multiple safety systems—overheat, flame failure, and high-pressure protection—deliver dependable operation and peace of mind.

Its built-in microchip continuously adjusts heating power up to 20,000 times per second to maintain precise temperature control within 1°F, minimizing sudden temperature fluctuations. The LED digital display allows easy adjustments between 95°F and 149°F, and the memory feature retains your preferred settings after power interruptions. From a user’s perspective, the Orbek propane model stands out for its quiet function, stable output, and energy-saving design. The only drawback is that proper installation requires compatible venting components, best handled by a professional. Overall, it’s a smart, safe, and efficient solution for homeowners seeking space-saving hot water performance.

Best High-Flow Propane Heater: APUS Tankless Water Heater Propane Gas

Pros:

• Powerful 95,000 BTU Output

• Precise ±1°F Temperature Control

• Energy-Efficient Design

• Quiet 40dB Operation

Cons:

• Limited Warranty Coverage

The APUS 4.42-Gallon Propane Tankless Water Heater combines high capacity with smart technology for consistent, on-demand performance. Delivering 95,000 BTU and a 4.42 GPM flow rate, it can handle up to two showers and one sink simultaneously without losing pressure or temperature stability. Its low-flow start at just 0.66 GPM ensures efficient heating even with minimal water usage, making it suitable for various household needs.

Thanks to advanced sensors and a smart CPU system, the APUS maintains precise temperature control within ±1°F, preventing sudden fluctuations during multi-fixture use. The oxygen-free copper heat exchanger enhances thermal efficiency above 85%, contributing to lower energy costs over time. Customers value its quiet operation, compact size, and intuitive LED touchscreen, which adds a modern touch to the design. While the two-year warranty is shorter than some competitors, the unit’s solid performance, safety protections, and efficient output make it a strong contender for homeowners seeking dependable propane-powered hot water.

In terms of reliability, Bradford White is often considered one of the most dependable brands for gas water heaters. With a long history of producing high-quality water heating solutions, Bradford White has earned a reputation for durability and performance. Their gas water heaters are known for their sturdy construction, efficient operation, and longevity. Additionally, Bradford White offers excellent customer support and warranty coverage, further enhancing the reliability of their products.

What gas water heater lasts the longest?

Gas water heaters from reputable brands such as Rheem, Bradford White, and AO Smith are known for their longevity. Models equipped with durable components, corrosion-resistant tanks, and efficient heating elements tend to last the longest with proper maintenance. Regular flushing of the tank, inspection of the anode rod, and professional servicing can help extend the lifespan of a gas water heater, ensuring many years of reliable hot water for your home.

What's the best hot water heater to buy?

The best hot water heater to buy depends on various factors, including your household's hot water usage, budget, energy efficiency preferences, and available fuel sources. Gas water heaters are often preferred for their fast heating times, lower operating costs (in areas where natural gas is affordable), and reliability. However, if energy efficiency is a top priority, consider a high-efficiency gas water heater with advanced features such as condensing technology. It's essential to research different models, read reviews from other consumers, and consult with a professional to determine the best hot water heater for your specific needs.

Which is better: gas water heater?

Determining whether a gas water heater is better for your home depends on several factors, including energy costs, availability of fuel sources, installation considerations, and personal preferences. Gas water heaters offer advantages such as faster heating times, lower operating costs (in areas where natural gas is affordable), and higher hot water delivery rates compared to electric models. They are also often favored for their reliability and ability to provide hot water even during power outages. However, electric water heaters may be preferable in areas where natural gas is not available or where electricity costs are significantly lower. Ultimately, the best choice depends on your specific needs, budget, and circumstances.

Choosing the best gas hot water heaters to buy ultimately depends on your household’s size, water usage habits, and energy efficiency goals. Modern gas heaters offer a balance of fast heating, reliable performance, and long-term savings compared to electric models. Whether you prefer a compact tankless design for continuous hot water or a traditional storage unit for larger families, investing in a high-quality gas heater ensures comfort and convenience year-round. Take time to compare efficiency ratings, safety features, and warranty coverage before making your final decision — a well-chosen model will serve your home reliably for years to come.