10 Best Hot Water Heaters Consumer Guides 2023 [Reviews]
If you are tired of waiting for several minutes for hot water to arrive at your sinks, it is time to invest in a hot water heater. This unit is equipped with advanced technology that enables it to produce hot water instantly. By so doing, the water heater greatly reduces water wastage as well as helping to conserve energy. It is suitable for kitchen & bathroom sinks, doctor’s office, kitchenettes, RV, and more. In these Consumer Guide, we have reviewed some of the brands we believe are the best in the market. Take a look.
Best Hot Water Heaters – [Reviews & Buying Guide]
1. Happybuy 18L Tankless Propane Hot Water Heater
Happybuy Propane Hot Water Heater comes with a water filter, a hose, and a propane gas regulator. It comes with everything needed to get it to function smoothly. Moreover, this unit is equipped with several safety features to give you peace of mind when using it. Some of these features are low water flow protection and over 75-degree Celsius protection.
As if that’s not enough, this water heater is CE certified to prove that it is of good quality. Plus the heater is extremely versatile in the sense that you can use it for bathroom showering, pet showering, sink cleaning, and hand washing. It will provide you with hot water constantly, and this makes it perfect for cold places or during winter.
- Clear LED display shows current water temperature
- Gas supply & water output control knob for easy adjusting of hot water temperature
- Winter/summer mode provides you with an easy way to save energy
- Stainless steel case is resistant to rust
2. VEVOR 18L Tankless Propane Water Heater
The numerous protection performance the VEVOR Water Heater offers are over-heat (75 degrees Celsius) protection, over water pressure protection, anti-frozen protection, no flame protection, 20-minute timer, and low water flow protection, among others. The water heater has passed CE tests, and this shows that it is safe to use as well as of premium quality.
It comes with a high-performance water filter to provide you with clean and soft water for showering. It also comes with a propane gas regulator that provides convenience, especially when using the unit outdoors. Besides, the regulator has a hose to let you connect easily to a gas tank. Plus this water heater is tankless and uses Liquid Petroleum Gas (LPG) as the main source of energy. It is perfect for outdoors, RV, and, of course, home.
- Auto shutdown gas power in case of unexpected flameout ensures safety during use
- Filtration mesh filters impurities in water
- Wall-mounted design saves a lot of space
- LED screen displays real-time water temperature
3. Rinkmo 18KW 240V Electric Tankless Water Heater
Rinkmo 18KW Water Heater requires two 8 AWG wires and two 40 AMP breakers. And the minimum water flow it needs to function properly is 0.4GPM (1.5 liters per minute). Rinkmo Water Heater is also available in 24KW. Well, this particular model requires three 8 AWG wire and three 40 AMP breakers. The minimum water flow it needs, on the other hand, is 0.66GPM (2.5 liters per minute).
You do not need to preheat the water heater before you use it. It is 99.8-percent energy efficient and will help you reduce water heating costs by up to 60-percent. With it, you will be able to get hot water in less than 3 seconds. It creates heat without direct contact with metals, and this means maintaining it is a cakewalk since there will be no buildup of minerals.
- Smart modulating technology and formula for calculating the diff between the current temp and desired temp
- Compact size saves space not to mention making the heater suitable for rooms with limited space
- Convenient buttons make installation and operation a breeze
- Auto protection function cuts off heating when the outlet temperature hits 75 degrees Celsius (167 degrees Fahrenheit)
4. Bosch ES4 4-Gallon Mini-Tank Water Heater
Bosch ES4 4 Gal. Water Heater is very easy to mount. It can be wall, floor or shelf mounted. Brackets are included to make sure you take the shortest time possible mounting it wherever you believe it will fit and function perfectly. To mount it, just tap the cold water line and then install the water heater directly at the sink to start getting hot water.
The dimensions of this water heater are 13.75 inches wide by 13.75 inches high by 13.5 inches deep. What’s more, the unit is available in many different sizes so you can easily get what meets your needs. These different sizes are 2.5 Gal, 4 Gal, and 7 Gal. It is perfect for boats, RVs, apartments, pool houses, garages, basements, and patio sinks, among others.
- CFC-free thick insulation foam provides maximum energy efficiency
- Glass-lined tank provides superior durability
- Lightweight and compact size makes the water heater ideal for small spaces
- Attractive and sleek design blends perfectly with any décor
5. EcoSmart 13KW at 240 Volts Electric Tankless Water Heater (ECO 11)
EcoSmart ECO 11 is a nice purchase for someone that wants a supply of hot water in their bathrooms, office break rooms, small sinks, and more. It is a 13-kilowatt tankless electric heater that produces between 1.3 and 3.1 gallons of water per minute. The amount of water it produces depends on the inlet water temperature.
It is a reliable unit that will give you peace of mind knowing that hot water will be available on-demand and consistent basis. With it, you will not just live a comfortable life but also you will be able to reduce water and energy wastage. The manufacturer advises that you refer to the sizing guide for the best solution for hot water that meets your needs.
- Wall-mounted design frees up floor space, thereby, ensuring more storage
- Sleek appearance blends with the décor of the bathroom seamlessly
- Most advanced self-modulating technology uses the amount of energy required to heat water
- Digital temp control of 80 – 140 degrees Fahrenheit
6. BISELONG Electric Mini-Tank Hot Water Heater, 110V – 120V
You should buy the BISELONG Mini-Tank Water Heater because it provides hot water instantly. This means as soon as you open the tap, the water will flow at the desired temperature. That’s not all – the heater only heats the amount of water you need plus it heats the water for the period you actually need it.
It goes without saying that the BISELONG Water Heater helps reduce energy and water wastage. It is perfect for bathroom sinks, small apartments, patio sinks, wet bars, strip malls, and doctor’s offices. Moreover, this water heater comes with a 1-year warranty as well as 24-hour customer support. And its dimensions are 13 inches long by 11.4 inches wide by 10.6 inches high.
- Knob adjustment control helps keep the temperature stable
- Compact size enables the water heater to fit in small spaces without any issues
- Attractive and sleek design blends nicely into any décor
- Bare wire heating systems are maintenance-free
7. Rheem 240V Residential Tankless Water Heater (RTEX-13)
Rheem RTEX-13 provides continuous hot water quickly to help make your life easy and comfortable. It is suitable for single point-of use or numerous applications. It measures 12.63 by 8.25 by 3.63 inches. It is compatible with 240 volts, just as its name suggests.
What’s more, Rheem RTEX-13 comes with ½ NPT adapters that help make installation a walk in the park. Side ½” compression water connections are also included to further make installation easy. The water heater is 99.8-percent energy efficient, and, therefore, beyond doubt, it will help you save a lot annually or on a monthly basis.
- External controls help you adjust the temperature in 1 deg F increments
- Immersion 2 heating elements are made of durable copper for long-lasting performance
- Self-modulating power control helps save energy
- LED display makes the water hot heater very easy to operate
8. Rinnai 11 GPM Tankless Water Heaters, RU199in
If you are skeptical about spending money on a water heater and then getting a non-functional product, Rinnai RU199in is for you. Although this unit is quite costly, it is worth it. It comes with a residential factory warranty that cannot be matched with the warranty of similar products. There is a 120-month warranty to protect the heat exchanger; a 60-month warranty to protect parts, and a 12-month warranty for labor.
Furthermore, this unit boasts an incredible hot water flow rate up to 11 GPM. It is worth noting that the water flow rate may vary depending on the temperature of groundwater. You should also note that this unit should be installed indoors only. Apart from RU199in, there are other models such as 180ip, RU130in, and RU160ip.
- Compact size allows installation in spaces such as crawl space, attic, or even a closet
- ThermaCirc360 technology re-circulates hot water through the pipes so you can get it fast
- Unsurpassed innovation and quality for peace of mind
- Durable components give the heater a long life expectancy of around 20 years
9. Ariston Andris 4 Gallon 120-Volt Mini Tank Electric Water Heater
With the Ariston Andris 120V Water Heater, no water is wasted in the name of waiting for hot water to arrive from the tank. It is built by a manufacturer that focuses on providing you with energy efficient comfort. Moreover, the water heater comes with pressure/temperature relief valve.
It also comes with rubber feet and wall brackets to help you easily mount it on the floor or wall. Additionally, pipes are included for further convenience. The dimensions of this electric water heater are 14.25 inches wide by 14.25 inches high by 12.75 inches deep. It is compactly sized, and, therefore, can easily fit almost anywhere. Another thing to say; this heater is backed by a 2-year warranty on parts and a 6-year warranty on tank.
- Titanium glass-lined tank is durable for long-lasting performance
- High-efficiency CFC-free foam insulation improves performance
- Booster unit or single faucet in a water heating system
- Thoughtful design allows the heater to supply hot water to even the most remote locations
10. Thermoflow Mini-Tank UT10 Electric Water Heater
Thermoflow UT10 can be used in 3 different ways. One of these is as a sole water heater for a single sink and another is as a supplement water heating system to an existing heating unit that is far away from the sink. Thermoflow UT10 can also work as a buffer that is installed in-line with water heaters (tankless), which experience intermittent cold water.
It measures 18 inches high by 12.2 inches wide by 11 inches deep and weighs 14 pounds. Like other modern high-quality hot water heaters, Thermoflow UT10 is compact, and, therefore, can be fitted virtually anywhere. Besides, this mini-tank water heater is suitable for strip malls, kitchen & bathroom sinks, small apartments, patio sinks, kitchenettes, doctor’s office, and basement wet bars.
- 2.5-gallon stainless steel tank requires zero maintenance
- Fast recovery rate gets rid of long waits for hot water to arrive at the sink
- Lightweight and compact size makes ground mounting a no-brainer
- Attractive and sleek design blends seamlessly into any décor
Buying Guide for the Best Water Heater
There is a lot to look at before buying a water heater. Well, we have discussed the crucial ones in this section so you know exactly the criteria to use to settle on a good, reliable hot water heating system.
Sturdy Construction
This is the first factor to check when buying a heater. A well-constructed heater does not just feature sturdy housing but also it is equipped with premium components. Such a heater will no doubt last longer.
Time Taken to Produce Hot Water
One of the reasons why you are looking for a water heater is that you do not want to wait longer for hot water. It, therefore, makes a lot of sense to go for a unit that produces hot water almost instantly. Such a unit not only saves time but also plays a role in saving energy.
Amount of Water Produced Per Minute
This depends on what you plan to use your heater for. For instance, if you plan to use it as a sole water heater, you should consider choosing a unit that produces a lot of water per minute. But if you plan to use it as a supplement unit for an existing heater, you can go for one that produces a moderate amount of water.
Conclusion
A hot water heater is suitable for bathroom, kitchen, RV, outdoor, etc. It is a good purchase for someone looking to make their life simpler than ever before. It produces hot water instantly, thereby, eliminating long, frustrating waits for hot water to arrive at the sinks.
