10 Best Water Heaters for Residential Use – Reviews and Buyer’s Guide

Rinnai RUC98iN Ultra Series features a fresh design and is one of the very few water heating systems that offer two venting options. Along with a continual supply of hot water, this appliance is also eco-friendly since it requires natural gas.

Swift Performance

The thermal bypass technology of this system makes it easier to heat water. This model includes an integrated recirculation pump, a thermal bypass valve, and an internal bypass line to provide a fast and unlimited supply of hot water. Even during the circulation period, this unit stores the heated water in the supply line to deliver instant hot water in sinks, showers, and other appliances like dishwashers and washing machines. This system can produce up to 9.8 gallons of hot water every minute.

Space-Saving Tankless Technology

Rinnai RUC98iN Ultra Series holds a compact design that can easily fit anywhere in your home. The portable design allows you to install this system even in the nooks and crannies such as attics or crawl spaces. This model also saves energy consumption as it has no storage tank to heat and reheat the water.

Efficiency

This water heater features copper heat exchangers to deliver maximum efficiency and consumes up to 40% less energy than the traditional tanks. This high-quality product is Energy Star qualified by exceeding the energy efficiency criteria set by the US Environmental Protection Agency.

Saves Money

This water heater is a smart investment.  Not only does it operate when needed, but it also doesn’t consume energy while it’s resting. The tankless design of the system means it does not require additional energy for heating and reheating the water. 

Eco-Friendly and Sustainable

The tankless technology of the Rinnai RUC98iN Ultra Series consumes less energy and conserves natural resources. This product lasts for a longer time compared to standard tanks and is built with recyclable parts that create less waste in landfills.

Stiebel Eltron Tempra 24 Plus is a top-quality water heater powered by Advanced Flow Control that maintains the water temperature and delivers hot water instantly. With Tempra 24, Stiebel Eltron features the revolutionary self-modulation energy technology that prevents the overuse of energy. 

Space-Saving Design

Tempra 24 has a modern and sleek design for a water heater. The tankless portable water heater occupies less area, which ultimately saves space in your home. It can also be mounted on the walls to free up the floor space.

Superb Performance

With temperature control features, this water heater can perform exceptionally well with both cold and preheated water. It has a manufacturer’s microprocessor technology that ensures that the temperature is steady all the time. 

It uses a copper sheathed heating element that contributes to the overall efficiency of the system. With this system, you’ll be able to save up to 20% of energy and reduce utility costs. 

Easy Installation

Tempra 24 comes with a detailed user manual that guides you through the whole installation process. Due to its compact size, this unit is extremely easy to install and use. Additionally, this water heater requires no venting. Therefore, it saves a lot of time and effort, as well. 

Durability 

One of the plus points of this heater is that it assures you of its long life. It includes heavy-duty materials and also has a protective steel casing. Besides that, this device gives you a warranty of seven years for leakage and three years for spare parts.

Bosch Tronic 3000 T (ES8) is a point-of-use electric mini-tank that only requires a small amount of space. Lightweight and compact, this water heater provides hot water for residential use. It features a glass-lined tank which offers great insulation and has a relatively fast recovery rate.

Instant Water Supply

Bosch Tronic 3000 T (ES8) has a 7-gallon mini-tank that you can install under your sink to deliver instant hot water. It provides an unlimited supply of hot water whenever needed. Additionally, the thermal efficiency of this system is about 98%. This means that this water heater delivers maximum output in a short amount of time.

Easy Installation

Installing this water heater is effortless and straightforward. All you have to do is press into the cold water line, provide an electrical connection and mount it anywhere near the sink. You can either use the heater alone for a small volume of water or connect inline with a central water heater if you need a constant flow of hot water. 

This mini-tank water heater is very easy to install just about anywhere, even in tight spaces.

Reliability

Bosch Tronic 3000 T (ES8) is a highly reliable water heating device that can supply hot water at your home or office anytime. It can heat water that’s between 65 to 145 degrees Fahrenheit with a wide range of options to choose your ideal temperature. Additionally, this water heater comes with a 6-year warranty on the unit and a 2-year warranty on the spare parts.

Built Quality

Bosch Tronic 3000 T (ES8) has a durable glass-lined tank that ensures heavy-duty performance. Therefore, you can expect this appliance to last for a long time. Additionally, the system has a zero CFC foam insulation, allowing high efficiency.

Rheem RTGH-95DVLN is a mixture of stainless steel condensing heat exchanger and is incredibly energy efficient. This system delivers at a high flow rate of up to 9.5 gallons per minute, which is more than enough to supply hot water in multiple bathrooms. With an ergonomic design, this unit takes up less space and can fit even in a tiny space for your convenience.

Performance

Rheem RTGH-95DVLN is a favorite amongst the vast majority of its customers. The flow activation technology of this heater produces hot water even when the water pressure is relatively low. The water-saving setting system also facilitates it. This feature alone can save up to 1,100 gallons of water every year. 

Technology

Rheem RTGH-95DVLN also comes with an EcoNet Enabled Technology that allows you to control the system directly through the EcoNet mobile app via Tankless EcoNet Accessory Kit. Besides that, with this system, you also have the flexibility to link multiple units into one for higher demand applications.

Safety Measures

This water heater has Guardian Overheat Film Wrap (OFW) to prevent overheating. It also includes a smart hot start programming system. If you tend to use hot water frequently, you’ll love this heater even more! Why? Because of its unique feature that prevents the cold water bursts by keeping the system in ready-to-use mode, so you can use it whenever you need it. 

Warranty Services

Rheem RTGH-95DVLN offers a warranty period of 12-years for the heat exchanger so that you can get your money's worth. Besides that, you also get a 5-years warranty on parts and a 1-year free service period for technical and labor.

Takagi T-H3-DV-N is a condensing gas-fired water heater that provides high volume output and thermal efficiency. The unit is capable of producing ten gallons of water every minute, a production that is sufficient for larger households with multiple facets.

High Volume Output

Incredible features of the Takagi T-H3-DV-N is its capacity to deliver ten gallons of hot water every minute. With this high output rate, plus 199,000 BTU gas input, this water heater is capable of delivering hot water for up to four bathrooms and faucets.

High Efficiency

This water heater comes with several cost-cutting features to enhance the efficiency of the product. Additionally, this appliance has a self-modulating heating mechanism, surge protection, overheating protection, diagnostics code, and anti-freeze protection. These advanced features guarantee durability and long life.

Compact Design

This water heater has a compact and space-saving design. This medium-sized product makes the installation more flexible. This device is handy for small homes and offices that have space issues.

Warranty

Takagi T-H3-DV-N comes with a limited warranty of 15-years if used for a residential purpose. Additionally, it has a 5-year limited warranty on parts and a 1-year conditional warranty on labor. Not only that, to ensure maximum value for your investment, it also provides a 6-years warranty on the heat exchanger.

Equipped with advanced self-modulating technology, RTEX-18 is a high-quality water heater that automatically adjusts the temperature to meet your demands. Along with having copper heating elements for instant hot water, it also has two heating chambers.

Performance

Although smaller in size, RTEX-18 is an excellent appliance when it comes to performance. With its super-advanced self-modulating technology that automatically adjusts power to deliver hot water constantly, it is also 99.8% energy efficient. This means that you’ll save a lot of energy, helping you save some cash on your electricity bill. 

Built Quality

In terms of quality, this water heater is extremely compact and well-built. It includes a copper immersion heating element with a robust brass top for durability. Additionally, the unit also has a digital temperature control in increments of 1 degree ranging from 80 degrees Fahrenheit to 140 degrees Fahrenheit.

Warranty

Rheem RTEX-18 comes with a limited warranty of five years on the heating chamber and a one-year warranty on spare parts. You no longer have to worry about the system as it is built with robust copper immersion heating elements that are guaranteed to last for years.

Ideal for a medium-sized home, EcoSmart ECO 27 delivers endless hot water in three or four bathrooms. This water heater features a self-modulating technology that automatically controls the temperature according to your needs. However, if you wish to change the temperature manually, it also has digital temperature control. Although this model has a relatively larger frame, the installation is fairly straightforward.

Digital Temperature Control

With EcoSmart ECO 27, you no longer have to worry about hot water when in shower. The temperature control feature gives you the freedom to adjust the temperature, resulting in accuracy.

Self-Modulating Technology

This water heater comes with a self-modulating technology that modulates the system based on two factors, user demand and outside temperature. On a hot day, when the appliance is not in use, this technology sets the system to a hibernating mode. But on a cold day, this heater makes sure to deliver hot water right when you need it. 

Easy to Install

EcoSmart ECO 27 requires electricity and is super easy to install in comparison to gas-powered counterparts that take a long time to operate. Unlike gas-powered heaters, this unit also does not require venting options. But, you’ll still need an electrician to install the system safely.

Requires Low Maintenance

Unlike cheap water heaters, EcoSmart ECO 27 is a combination of copper and stainless steel materials. Both these materials provide better resistance to rust and prevent the inside pipes from the effects of debris, dust, and chemicals. In addition to that, this system comes with a lifetime warranty.

EcoSmart ECO 11 is a tankless water heater that is capable of delivering two gallons of hot water in a minute. This system has a self-modulating technology that helps regulate the output of this water heater. This particular model by EcoSmart is 98% energy efficient and has a digital temperature display for easy temperature control.

Compact Design

Ecosmart ECO 11 is one of the most coveted electric water heaters on the market today. With its sleek design that not only captivates the eyes but also fits anywhere you want it. It is so small that it can also be mounted on the kitchen wall to save some floor space. With its characteristics such as compact size, lightweight and portability, this water heater is an excellent choice for small homes and apartments.

Self-Modulating Technology

This water heater features a self-modulating technology that operates based on user demand and room temperature. This system reads the user pattern, which helps it to adjust the heating temperature automatically. It also studies the room temperature and only produces hot water when you need it.

Safety

This appliance is extremely easy and safe to use. This system eliminates the danger of transferring hot water from one room to another because you can directly connect this system with multiple faucets and showerheads. Besides that, this system also ensures durability as it comes with a lifetime warranty.

WaiWela WM-2.5 Mini Tank Water Heater is a point-of-use appliance that is a combination of quality, effectiveness, and efficiency to deliver instant hot water. Unlike regular heaters, this unit comes with an adjustable thermostat that automatically regulates the temperature for easy use.

Built Quality

WaiWela WM-2.5 Mini Tank meets the UL - 174 Standard for household electric storage tank water heaters. The heating element of this model includes high-quality stainless steel and the entire tank is surrounded by foam insulation. The tank vessel of this product has the highest grade of glass enamel coating for protection.

Compact Size

Whether you choose to install this mini tank under the sink or the wall, the compact design of this model lets you the freedom to fit it anywhere. The installation of this tank is also exceptionally easy.

Warranty

Not only is this mini tank built with sturdy materials, but it also comes with six years of limited warranty on the tank and two-years of warranty on the spare parts.

InSinkErator HWT-F1000S is a stainless steel hot water tank that not only provides instant hot water but also filters it. This water tank is designed to perform remarkably well and will also last for years to come. The advanced technology of this system can deliver up to 60 cups of steaming hot and filtered water every hour.

Instant Hot Water

InSinkErator HWT-F1000S can deliver hot water that’s up to 200 degrees Fahrenheit instantly. Installing this hot water dispenser at your home will save your time while also adding elegance to the kitchen. The system also features easy-to-adjust temperature control and is highly energy efficient.

In-Built Filtration System

Along with delivering instant hot water, this appliance also includes F-1000S Filtration System that produces clean and fresh water every time. This filtration system reduces harmful chemicals, particulates, chlorine, and odor to ensure pure water. However, the filter should be replaced every six months for optimal performance.

Energy Efficient

This water heating system is a favorite amongst home-owners because it is fast, effective, and extremely energy efficient. This water heating tank can save up to 80% of energy and helps you save a lot of money.

Warranty

InSinkErator HWT-F1000S offers an exclusive 3-years of In-Home limited warranty, which includes free house calls during the entire warranty period. Additionally, the system also includes a one year warranty on the filtration system.