Top 10 Best 40 Gallon Water Heater : Reviews & Buying Guide

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Buying a 40 Gallon Water Heater seems like an easy job, but not everytime. There are hundreds of 40 Gallon Water Heater available on the market from various producers, which is enough to confuse you. They are so similar in terms of performance, quality, longevity, and overall user experience that choosing a final buying decision may be tough. All you need at that point is a comprehensive buying guide to help you find the ideal 40 Gallon Water Heater for your needs.

In this article, we will go over a few important points to consider about before buying a 40 Gallon Water Heater. You can call it a proper review guideline for you which will cover pros and cons of your desired product including its sustainability, affordability, functions, and also practical benefits. There will also be a solid comparison of a few related products. As a result, you’ll be able to quickly select the best option for your needs. Let’s take a look at what’s going on inside.

Best 40 Gallon Water Heater : Top 10 Picks

Last update on 2024-11-16 at 19:44 / Affiliate links / Images from Amazon Product Advertising API


10 Best 40 Gallon Water Heater Reviews According To Experts

We tried to find the top ten 40 Gallon Water Heater from thousands of different products in this section. This list will make you feel easy to get your desired 40 Gallon Water Heater within a few minutes. We emphasized their usefulness, performance, durability, outlook, affordability, and previous user experiences. We are confident that this list of the top 10 40 Gallon Water Heater will help you find the one that best fits your needs.

Bestseller No. 1
State Proline Series 40 Gallon Capacity 4.5 kW Heating Input Short Electric Water Heater
  • 55 Gallons per Hour First Hour Rating
  • 0.92 Uniform Energy Factor Rating
  • 21 Gallons per Hour Recovery at 90°F Rise
  • Dimensions: 49-3/4" H x 20-1/2" D
Bestseller No. 2
GE Appliances 30 Gallon Electric Water Heater with Built-In Wifi & Digital Display, Smart Water Heater, 240 Volt
  • REAL CAPACITY - Get the most hot showers from the only 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 60 gallons of hot water in the first hour (Measured through DOE First Hour Rating)
  • QUICK RECOVERY - Two powerful 5500W heating elements ensure available hot water quickly after each use
  • HOUSEHOLD SIZE - Provide hot water for the whole family of 1 to 3 persons
  • BUILT-IN WIFI - Easily adjust temperatures, set vacation mode schedules and receive notifications with Built-in WiFi powered by SmartHQ
Bestseller No. 3
State Proline Atmospheric Vent Series 40 Gallon Capacity 40,000 BTU Heating Input Short Gas Water Heater
  • 67 Gallons per Hour First Hour Rating
  • 0.58 Uniform Energy Factor Rating
  • 41 Gallons per Hour Recovery at 90°F Rise
  • Dimensions: 48" H x 22" D
Bestseller No. 4
Rheem 72-40-2 240V / 4500W 40 Gallon Electric Water Heater
  • Rheemglas lined tank
  • R-Foam insulation
  • Anode Rod protects against corrosion
  • Automatic temperature control thermostat
  • Direct immersion heating element
SaleBestseller No. 5
Orlushy Submersible Aquarium Heater,300W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater
  • ★300W aquarium heater is suitable for 40 to 55 gallons aquariums,Length - 11 inch,voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart.
  • ★It shows an area to adjust the temperature. It's not exactly accurate but it turns easy and can be adjusted at small intervals.
  • ★Explosion Proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.
  • ★Precise temperature dial from 68 to 89°F allows for complete control of aquatic climate within a 1-degree difference.
  • ★Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature. Automatic shut off when the temperature is reached
Bestseller No. 6
State Proline Series 40 Gallon Capacity 4.5 kW Heating Input Tall Electric Water Heater
  • 53 Gallons per Hour First Hour Rating
  • 0.92 Uniform Energy Factor Rating
  • 21 Gallons per Hour Recovery at 90°F Rise
  • Dimensions: 61-1/4" H x 18" D
Bestseller No. 7
80,000 BTU Residential Indoor Natural Gas Tankless Water Heater, ORBEK 120 Volt On-demand Instant Hot Water Heater, Up to 3.6 GPM, CSA Certified Multiple Points of Use Water Heater
  • Endless On-Demand Hot Water: This gas tankless water heater offers a flow rate of up to 3.6 GPM and a heating capacity of 80,000 BTU; It efficiently serves up to 2-3 fixtures at once, ensuring a steady supply of hot water throughout your home
  • Precise Temperature Control: Orbek's tankless water heater uses smart sensors to keep the water temperature within ±1℉ of your setting, providing a consistent and perfect bath every time, no matter the season
  • CSA Certified Safety: Orbek's tankless water heater is built with high-quality materials for durability; and includes Anti-scald, freeze, and Dry-fire protection, making it a reliable choice for home hot water
  • Energy & Cost Saving: Orbek tankless water heaters are highly energy efficient; Without a storage tank, tankless heaters eliminate heat loss and energy waste during the standby mode, saving you from expensive power and water costs
  • Easy to Install: Installation is simple with standard 3/4" NPT connectors for most water pipes; A 3" diameter vent (not included) easily connects to the direct vent
Bestseller No. 8
GE Appliances 10 Gallon Versatile Plug and Play Electric Water Heater with Adjustable Thermostat, Easily Installs Where You Want It, 120 Volt
  • EASY INSTALLATION - Installs in minutes with existing plumbing. Uses standard 3/4-in NPT compatible water connections and connects into any 120-Volt supply
  • COMPACT DESIGN - Offers flexibility and space savings in places like kitchens, bathrooms, laundry rooms, RVs, cabins, barns, garages, etc
  • LEADING WARRANTY- 8- year limited replacement or 8-year tank and parts/1-year labor warranty for peace of mind
  • HOT WATER BOOSTER - Works as a standalone unit, or inline with another water heater to boost washing machines or longer plumbing runs
  • ADJUSTABLE THERMOSTAT - Easily change temperatures to your desired settings
SaleBestseller No. 9
Rheem 18kW 240V Tankless Electric Water Heater, Gray
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display
Bestseller No. 10
Electric Tankless Water Heater,ORBEK 14KW 240V On Demand Instant Water Heater, Endless Hot Water for Residential House Use, with LED Digital Display, 2-3 Point of Use Hot Water
  • Professional Installation Recommended: Orbek 14KW electric tankless water heater requires 1 x 240V/60A two-pole breaker and 1-set of 6 AWG wires to be connected. Be sure to understand the wire usage requirements first.
  • More Practical Tankless Water Heater: They can provide uninterrupted hot water on demand. Meanwhile, the on-demand hot water supply also means that tankless water heaters do not need to continue to consume electricity on standby like tank water heaters.
  • ETL Certified Comprehensve Security Protection: The safety of high-voltage electrical appliances must undergo rigorous testing and certification. ORBEK have undergone comprehensive safety certification in ETL.
  • Smart Operation: Auto-adjusts energy use based on water temperature and flow to maintain stable temperatures and optimize power. The heating element is separated from the water tube, reducing scale, corrosion, and mineral buildup.
  • Easy to Install & Courteous Customer Service: Both the inlet and outlet are standard 1/2” NPT male connectors, which are compatible with most house water pipe sizes. Its compact size of 14.2"H x 9.5"L x 3.1"W takes up almost no space.

Last update on 2024-11-16 at 19:44 / Affiliate links / Images from Amazon Product Advertising API




Things To Consider When Buying 40 Gallon Water Heater

It is impossible to ascertain everything about anything as a human being. It is impossible to be an expert in every field. In that case, going through a proper buying guide can save us from being fool after purchasing a 40 Gallon Water Heater just because of not knowing properly earlier.

You do not have to be an expert on that specific product in order to purchase it. Just focus on a few key points that we’ll go over later. Taking these simple considerations into account may make your shopping experience more pleasant and straightforward. Let’s get started.

Understand what you require.

The very first thing to discover is your needs or requirements. If you are not properly informed of your demands, there is a big chance that you will purchase the incorrect things at the wrong time and waste a significant amount of money. So, first and foremost, we recommend that you carefully consider your requirements when searching for a 40 Gallon Water Heater. Simply make a short list of your requirements. This simple task will lead you to simplifying your purchasing process. Then you will be able to know your prioroties which is the most important thing.

Budget vs Pricing

Before you decide to buy anything, one of the most important issue to think about is budget. Your desired product can be asked any amount of price by it’s seller and producer. That depends on different expences like raw material purchasing, manufacturing, transportation, operational costs and their brand value playes a huge role there. You need to be prepared to spent the higher amount of money if you demand for the higher quality in your product. Budget is so important for this cause. This is almost a universal truth and your 40 Gallon Water Heater also fall into it.

There is a popular proverb in our society, “Cut your coat, according to your cloth”. First of all, you can find out those products on the internet which you actually want. Look carefully their features and prices. With your deep observation, make a proper comparison among them and select one that you need. Now make a question inward your mind that you are really financially capable enough to purchase that specific 40 Gallon Water Heater or not? If the answer is yes, then go for it. You may think about the second best option if your answer is no.

Select the Best Brand

Because of our emotional attachments, we are frequently predisposed toward certain brands. This practice yields positive results at times and negative results at other times. However, there is no way to argue with the concept of relying on well-known brands. Because having enough cash in your pocket makes making decisions half as easy. But one thing remains, if you are not 100% sure that your brand of choice makes the best product that you are seeking for. So you have to be very carefull when you are choosing any product if it is the right product from right brand.

People are divided into two groups. One is fully reliant on a single brand, while the other seems unconcerned. All he requires is the appropriate goods for the price he is paying. May be we are not aware of the category that you belong to.However, there are a few pointers that may be useful to both of you when it comes to selecting the correct brand for the right product.


  • Make sure in this case that you are well-versed in the brand.

  • What people are saying about this brand.

  • What is the average rating for that brand’s specific product?

  • Contrast the features with those of competitors.

  • Does these features meet your necessities?


Analyze the Features Section.

Whether you buy it online or offline, the first thing you should check is while buying is the features of 40 Gallon Water Heater. This is the best way to know about a product and get a clear concept. You will be able to understand, that product will match with your requirements or not.

The features section also helps us in swiftly identifying the differences with others. Then, using the features, you can compare it to similar products. If you do so, it will be much easier to reach to the final decision because you will be able to understand about the quality here.

Consider the benefits and drawbacks.

Every item has its own set of advantages and pitfalls. It is our job to thoroughly inspect them before purchasing them. So, stay cool, and find out the drawbacks which you demanded from that 40 Gallon Water Heater. Maybe some other manufacturer made the perfect one for you. Just don’t be too lazy to compare your options to theirs before making your final decision.

Pros and Cons sections can be found on most websites. Take your time reading that part. For asking more you can contact them via email or phone.

Quality and performance

Color, Style, Performance, Materials, and, most importantly, Durability are all factors that contribute to quality. When you are buying anything, be carefull to check those quality related issues. We think you are actually paying the money for this. Do you think this 40 Gallon Water Heater is worthy enough against the investment you did? It completely depends on the quality that you are going to experience.

Know About Warranty and Return Policies

A lot of manufacturers are making products. A good amount of them are maintaining high quality as well. To make us known about those products, they make also creative advertisements. Everything is fine. But then arrives the matter of Warranty and After Sales Service. For many, it’s really a big deal and it is quite able to make a big difference.

Don’t forget to check the facts like warranty, guarantee, and obviously the return policy if there any. Nobody can claim that nothing will happen, no matter what the quality of that product is. Nothing lasts forever. But a minimum return of value you can expect from the 40 Gallon Water Heater you are going to pay for. So, be careful about checking policies. You may get some companies who are so clever that they try to make people puzzled with their obscure and mystical policies. In that case, don’t hesitate to contact with their representative and ask about what you want to know.

Checking FAQs and Customer Reviews makes your job easier.

If you want to save your time precisely, then checking FAQ anwers and customer reviews can be utile for you. There are few common questions people asked before and they are answered as well is called the Frequently Asked Questions or FAQ. On the other hand, you will get a real life experience through the customer reviews in which they share their sotries about the product.

If you want to get a clear idea of both, checking out those two things are must. You may find there such informations which might not come in your mind to ask if you didn’t go through. You will be able to decide whether this 40 Gallon Water Heater will come handy or not without any hesitaton.

Final Thought

One last word, don’t forget to consider the price you are paying for the 40 Gallon Water Heater is logical enough against the value it is providing to you. Have you been able to gratified with that? Can you be able to fullfill your demands with that? That’s the thing that should get the most importance we guess.

Hope you have enojoyed this whole article which was actually a buying guide that will lead you to buy the best 40 Gallon Water Heater. All the efforts we put here will get success when you will find this even a little bit of useful for you. At the end of the day, your satisfaction matters most to us.

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