by Peter |
Last Updated: October 26, 2022 In this article, we will present the top 10 best demand water heaters available on the market, along with our expert reviews. Get one of them and have fun! You’ll love it!
In Hurry? Checkout Our Top Pick Of Best Demand Water Heaters.
Our Top Pick
9.7/10 our score
Best Demand Water Heaters
| Rank | Product Name | Score |
|---|---|---|
|
1
|
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
|
9. 7
|
|
2
|
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology
|
9. 5
|
|
3
|
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
|
9. 1
|
|
4
|
Tankless Water Heater Electric 240V, On Demand Hot Water Heater Digital Display 5.5kW,Electric Instant Hot Water Heater,Overheating Protection, Black
|
8. 8
|
|
5
|
Camplux 1.32 GPM Portable Water Heater Tankless Water Heater Propane Outdoor Black
|
8. 6
|
|
6
|
Airthereal Electric Tankless Water Heater 14kW, 240Volts - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere - for 1 Shower, Evening Tide series
|
8. 2
|
|
7
|
Tankless Water Heater Electric, thermomate 3.5kW 120V Hard Wired Point of Use On Demand Hot Water Heater Self Modulating ET035
|
8. 0
|
|
8
|
Portable Water Heater Propane Tankless - 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping ,Boat,Cabins
|
7 .7
|
1. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
1
9.7/10 our score
Features
- Endless On-Demand Hot Water, Consistent hot water when you need it that never runs out, Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
- Save Space, EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters, may be installed on wall or at point of use, Dimensions 11.5 x 8 x 3.75 inches
- Save Energy, EcoSmart tankless electric water heaters are 99% thermal energy efficient, Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
- EcoSmart ECO 11 Sizing, 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications, provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature, refer to the sizing guide to select the proper solution
2. EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology
2
9.5/10 our score
Features
- The product is highly durable
- The product is easy to use
- Manufactured in China
- Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
- The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire
- Lifetime warranty for residential use
- Save up to 60% on your water heating costs with the most advanced, self modulating technology available
- Never run out of hot water with an ECOSMART tankless water heater.
- Save up to 12 cubic feet of storage space.
- Digital temperature control in 1-degree increments gives users complete control of hot water
- 75 A
3. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
3
9.1/10 our score
Features
- CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
- LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
- INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
- FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
- EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included), simply tap into the cold water line and install the water heater directly at the sink to provide hot water
4. Tankless Water Heater Electric 240V, On Demand Hot Water Heater Digital Display 5.5kW,Electric Instant Hot Water Heater,Overheating Protection, Black
4
8.8/10 our score
Features
- INSTANT & SUFFICIENT HOT WATER:Applied with 5.5KW heating system, the electric water heater supplies instant, consistent and endless hot water of 116℉or higher temp shortly, no waiting for preheat nor terrible temp up & down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.
- SMART SELF ADJUSTMENT:The hot water heater adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 98% saves considerable electric charge.
- CONVENIENT USE:The tankless water heater comes with digital display & touch control panel so temp setting is easy job. Now turn on the tap and let the smart unit do the rest, you needn’t go through hard lesson about temp setting by a mixer tap without any hint. This Black model does not comes with Remote control, useful for installation under sink.
- SAFE and DURABLE:Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Approval by ETL and qualifies for UL, you can expect outstanding performance for years to come.
- POINT of USE:The sleek tankless water heater is compact as an oatmeal box, making it possible to install anywhere close to outlet and avoid energy waste. It can be mounted horizontally, vertically, obliquely, ideal for kitchen, bar, school, hospital, community and hair salon. Please verify it is the right size for you: 5.5kW@240V, dimensions 11" x 7.5" x 2.35", pipes fittings :1/2" NPT.
5. Camplux 1.32 GPM Portable Water Heater Tankless Water Heater Propane Outdoor Black
5
8.6/10 our score
Features
- Portable Design: The portable propane water heater with portable and handle, weights only 14lbs.
- Easy to Install: This 1.32 GPM on demand hot water heater comes with 5 feet gas regulator, shower hose and US standard garden hose, easy to install in 5 mins.
- Energy & Cost Saving: Portable hot water heater with maximum power output 34,000btu/hour, provides 1.32 GPM hot water on demand, no need to preheat,saving up to 50% on water heating costs.
- Low Water Pressure: The portable camping gas water heater start with 3.0 PSI low water pressure,it's good for RV camping, outdoor trip, washing pets.
- Safey Insurance: Camplux propane tankless water heater was CSA certified, 6-in-1 protections ensures you a comfortable outdoor shower.
6. Airthereal Electric Tankless Water Heater 14kW, 240Volts - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere - for 1 Shower, Evening Tide series
6
8.2/10 our score
Features
- ☼ Endless Hot Water: Imagine you are the last one in your family to take a shower before heading out for the day. You turn on the faucet and the water is freezing cold. Too bad you don’t have an Airthereal Electric Tankless Water to provide endless hot water on demand with no preheating, temperature fluctuations, or running out of hot water in the tank.
- ☼ Save Space: That water heater in the basement or utility closet takes up a ton of space. This wall-mounted water heater uses 90% less space than a traditional hot water heater with a tank.
- ☼ Save Energy: Water is only heated when you need it, not stored in a hot water tank. The self-modulating temperature technology only uses energy to heat up water while you are using it to save up to 50% on water heating costs compared to a typical tank water heater.
- ☼ Important Note: In order to install 14kW Electric Tankless Water Heater it would requires 240 Voltage, 60 AMP Circuit Breaker Size and a set of 6AWG/2 wires. Please check to confirm that your breaker panel meet these specifications.
- ☼ Safe To Use: With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.
7. Tankless Water Heater Electric, thermomate 3.5kW 120V Hard Wired Point of Use On Demand Hot Water Heater Self Modulating ET035
7
8/10 our score
Features
- Instant Heating - 24 hours ready to continuously supply instantaneous hot/warm water at preset temperature throughout your home only when needed. NO standby energy consumption. NO wait for tank to fill up. MUTS HARD WIRED. Drawing only 110-120 Volts
- Space Savings - 7.8W×6.3H×3.9D inch, compact small Point of Use water heater designed for Single Sink use, wall mounted fitting in small spaces throughout kitchen closet, bathroom sink, hair salons, bar counters and hotel receptions. Temperature ranges from 85°F- 131°F
- Self Modulating - On demand water heater automatically adjust the power based on the change of inlet water flow and temperature, saving up to 50% energy consumption and preventing over-heating.
- Safe & Healthy - ETL certified and equipped with Multiple Protection from leakage, dry fire, over-heating and over pressure. IP25 waterproof. Stainless steel heating element and no storage water, preventing sediment / scale build-up.
- User Friendly - Touch control panel and digital temperature display, easy to set your desired temp. Lightweight and easy to install vertically facing up or down. Open tap to start the unit heating with activation flow rate of 0.4GPM.
- Important Note - Please verify this unit is the right size for you: 3.5kW@120V, requiring 40A Circuit Breaker, 9AWG wire size and 1/2"NPT water connections
8. Portable Water Heater Propane Tankless - 6L 1.58GPM RV on demand Hot Gas Outdoor Digital Display Water Heater for Camping ,Boat,Cabins
8
7.7/10 our score
Features
- On Demand Hot Water:Maximum power output 42,000btu/hour, get instant endless hot water easily wherever you are. No need to preheat before using tankless water heater. As soon as you turn on the tap, the water flows with your desired temperature. Low water pressure start up, just need 2.5 PSI of water pressure. 1.58 gallons per minute of on-demand hot water. Fully adjustable heat and water flow.
- CSA Approved Safety :RUINOPAR Tankless Water Heater with CSA Approved Regulator, safe as per Canadian and US Standard.Automatically decrease water pressure between 2.5-145PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. High water temperature protection over 167°F. Shut off gas supply automatically under unexpectable flameout.
- Safety Protection:The safety of the propane water heater is also an important thing that everyone will value very much, Our products have more than 6 protection methods, The product has safety protection that measures such as overheating protection, antifreeze protection, flame-out protection, anti-dry protection, high water pressure protection and low water flow protection, which prevent the product from doing harm to users,providing a comfortable and safe bathing conditions, reliable product.
- Lightweight Portable Design:Compact size and lightweight design for easily carry. It can bring a amazing hot shower for you when you are camping , to the beach, etc. Also you can wash your pets with this tankless water heater in outdoor. Using the handle of the gas water heater or the mounting bracket on the back to hang it. It only takes you a few minutes to install it.
- Energy Saving:With automatic ignition and flameout modes, when you turn on the shower nozzle, the tankless water heater automatically ignites, and when you turn off the shower nozzle, the water heater automatically put out the flame, With this unique design, our heater can save 11.5% energy for you and ensure your safety at the same time.
- Important Tips:To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
- 2-Year Quality Warranty:We provide the 24-month warranty for the gas cooktop, replace a new set directly once it has any quality problems.If you encounter any product after-sales problems, you can always contact the RUINOPAR support team, we will give you a satisfactory solution within 24 hours,Professional team is always online.