Find The Best House Tankless Hot Water Heater Reviews & Comparison

Features :

• 【INSTANT & SUFFICIENT HOT WATER】 With real powerful 18kW smart heating system, the tankless hot water heater electric ECO180B supplies sufficient instant and endless hot water of 120℉ or higher in seconds, no waiting for preheating nor terrible temp fluctuation during shower time any more and no worry of running out of it. Perfect companion for whole house use, including shower, sink faucets, dishwasher, washing machine, etc.
• 【SELF MODULATION INSTANT WATER HEATER】The electric on demand tankless hot water heater ECO180B adjusts exact power input based on current flowrate and temp setting. For example, less power will be consumed by the smart water heater when you reduce water flow, thus, you get ideal temperature instead of scalding hot, which ensures comfortable experience and excellent energy efficiency. Also, optimal energy efficiency of 98% saves considerable electric charge for you.
• 【CONVENIENT USE】The electric tankless water heater 18kW comes with digital display & touch control panel so temp setting is easy job. Best of all, useful information on the screen helps you get full understanding of the working status of the 240v water heater tankless, you needn’t go through hard lesson of temp setting. Now turn on the faucet and let the smart instant hot water heater do the rest.
• 【SAFE and DURABLE】Newly updated and applied with multiple protections, such as leakage protection, over heating protection and auto stop. Every piece electric tankless water heater ECO180B goes through strict tests to ensure 100% safety and it is listed by ETL and qualifies for UL. Inner water and electricity lines are designed to run separately so as to avoid leakage risk and scale build up. You can expect outstanding performance for years to come.
• 【POINT of USE WATER HEATER】The sleek tankless water heater ECO180B is compact as shoes box, making it possible to install anywhere point of use to avoid waste, ideal for shower, kitchen, bar, school and hair salon. Please verify it is the right size for you: 18kW at 240V(only); dimensions 12.22″ (W) x 17.25″ (H) x 4.02″ (D); plumbing connections :3/4″ NPT. In order to install 18kW Tankless Water Heater it would requires 240V, 2X40AMP Double Pole Breaker and 2X8AWG/2 wires with Grounding.

Features :

• Instant Endless Hot Water: Mizudo Tankless water heater electric use heating methods, providing hot water quickly without the need to wait for a tank to heat up, and suitable 2-3 point of use throughout the whole house. Item Dimensions (LxWxH): 17 x 13 x 3.6 inches, Item Weight‎: 16.7 pounds. Lightweight and space-saving.
• Energy Efficiency: As tankless electric water heaters directly heat the water flow, there is no energy loss from storing hot water. Compared to traditional tank-based water heaters, tankless electric water heaters are more energy-efficient, helping reduce household energy expenses.
• Safety Protection: Tankless electric water heaters often have multiple safety protection features such as overheating protection and leak detection to ensure safe usage. The internal water and electrical circuits are designed to operate separately, Avoiding the risk of leaks and limescale buildup.
• Adjustable Temperature: Mizudo electric tankless water heater 18kW 240v comes with digital display & touch control panel. Tankless electric water heaters are equipped with temperature adjustment features, allowing users to customize the temperature of the hot water according to their needs and preferences in their whole house.
• Space-saving: Tankless electric water heaters don’t require a large storage tank and have a compact size, allowing for installation in small spaces such as walls, garages and basement.
• Important Notes: Make sure to install this water heater correctly: 18kW at 240V draw max 75A; Required breaker 2x40AMP; Wire gauge 2 X (8AWG/2); Water connection 3/4″ NPT. Incledes a detail instruction manual for easy installation.

Features :

• 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

Features :

• NOTE: Since each product has been quality tested before leaving the factory, a small amount of water remains inside each water heater!Please rest assured，If there is any problem with the product, you can contact us, customer service 24 hours online service.
• 【INSTANT & SUFFICIENT HOT WATER】Applied with 7.5KW 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. The Black model 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: 7.5kW@240V; dimensions 11″ x 7.5″ x 2.35″; pipes fittings :1/2″ NPT.

Features :

• ON/OFF Dial Control with adjustable digital temperature display
• Self-modulating power control
• 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
• Bottom 3/4″ NPT water connections
• On demand, consistent and continuous hot water

Features :

• Endless Hot Water for Whole House – Instant hot water tankless water heater constant supply hot water whenever and however long you need, elimiate waiting time and never run out of hot water; 4.68 GPM Flow rate 35°F temp.rise (2-year limit warranty, contact us for any issue with this water heater)
• Energy and Cost Saving – Heating water only when it’s needed with heating efficiency up to 99%, savings of up to 50% on water heating costs; minimal activation flow rate 0.66GPM
• Self-Modulating Temperature Technology of Germany – use only neccessary energy to heat water to temperature of your needs, also ensure steady output temperature despite of flow fluctuation. LCD digital display shows output temperature, which allow you to adjust temperature in 1-degree increments; temperature range 104-167°F
• Easy Installation and Durable – Compact and wall-mounted design with Six stainless steel heating elements, thermo cut-off protection, CSA certified, IPX24 protection, ensuring a long service life (online video installation guidance available)
• Please verify it’s the right size for you: Dimensions: 18.6″ x 10″ x 4.5″; weight: 8.4 lbs; pipes fittings :1/2 inch NPT, nominal pressure: 150PSI. Electrical requirements: 24kW at 240V. Nominal current: 2 × 50A. Required breakers: 2 x 2-pole 60 AMP. Required wire: 2 x 8AWG. (breakers and wire are NOT included); 24months warranty and timely customer service support

Features :

• Steady Temperature Control- Benefiting from the calculation and control of the heating power , the temperature difference of the water can be precisely controlled within ±2 ℉, no more chilly cold shower
• High Heating Performance- Camplux CA318 gas hot water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner makes high heating efficiency up to 98.99 % in 3 seconds
• 3.18 GPM Instant Hot Water- Camplux natural gas tankless water heater delivers 3.18 GPM on-demand hot water for 2-3 points simultaneous water supply for bathroom,kitchen hot water demand
• Durable & Long Lasting- Superior safety and durability using the world’s most advanced technology. Camplux provide 3 years warranty on oxgen-free copper exchanger and 1 years warranty on other parts
• Easy to Install- Applied with standard 1/2″ NPT water fitting and gas inlet, comes with 2.3″ horizontal vent pipe for quick installation. You can take Camplux wall thimble for perfect indoor use. Get a gas regulator ( Camplux model KR-106A ) & 1 pc 5/8″ NPT male to 1/2″ BSP female gas connector if you hook this water heater to propane tanks
• Easy to Operate- Camplux tankless water heater has trendy design with unique black glassy front panel, easy to control the water temperature with LED touch screen with Fahrenheit digital display
• Space Saving- It is only 1/6 the size of a 50 gallon tank water heater,great for home,small cabins and remote apartments indoor installation. The integrated components also provide greater safety from water pressure surges without the need to install an expansion tank
• Note- The stand-by electric power is 2W, working electric power is 42W. Propane gas input pressure is 0.4psi. There is a pressure relief valve at the water inlet of water heater. It is necessary to manually unscrew the pressure relief valve to drain the water inside the machine in time after using the machine to avoid freezing and blew up when the temperature is lower than 32 ℉ in winter

Features :

• On Demand Endless Hot Water-18kW electric tankless water heater unlike a traditional water heater, you don’t have to wait more than 3 seconds to get plenty of hot water for your shower. Take a shower whenever you like at home and the most crucial thing is to save a lot of time
• Fast Heating & Low Consumption- High-efficiency heating rod require 2 x Double-pole 40AMP Breakers to Achieve 240V. Tankless hot water heaters can realize a multi-point water supply in the whole house. Efficiency up to 99.8% and save 60% water heating costs for your home
• Safety Protection- The home tankless hot water heater has a good temperature system to provide stable water temperature output with overheating protection, anti-dry heating protection, and water-electricity separation. Protect the safety of you and your family by following the ETL certified standards
• Easy Installation & Save Space – The whole house instant water heater without a tank, can be installed on the wall in a central home location. Storage more space in your home. 360° rotation without reset of the knob to regulate the temperature for convenient operation
• Important Tips- Ensure the minimum water flow for activation just need 0.66 GPM; Output water temperature is between 80℉& 140℉; Wire gauge 2 x 8AWG; Unit size 17.12″ x 13.12″ x 3.12″; Water connection 3/4″ NPT
• Tech Support- Camplux offers 2-year parts, 3-year leak-free warranty, and 3-year tech support

Features :

• Hot Water on Demand: Powerful 36kW heating system provides endless hot water with automatic water flow sensors. Ideal for entire home to receive instant and continuous hot water in seconds. Self-modulating unit allows you to set and maintain desired temperature in increments of 1℉. Easy-to-use and read digital temperature display.
• Multi-Use Application: For commercial or residential use. Hot water tank designed for entire home in warm to hot climates. Ideal for showers, sinks, bathrooms, washing machines and kitchens.
• Save Space & Money: Wall-mounting design allows you to install virtually anywhere – in a cabinet, closet, garage, basement. Save space with compact unit size. No bulky hot water tank needed; Save up to 50% on heating costs as water only heats when you need it.
• Reliable & Durable: Extensive warranty of 7-year leakage-free coverage, 5-year heat exchanger, 2-year parts; Durable stainless steel, non-corrosive internal canisters and piping provide increased heating efficiency and life expectancy. Lead-free.
• Easy Installation: Requires 4 x 40 amp single-phase double-pole breakers, 4 x 8/2 AWG wire size and 240V; Standard 3/4 in. NPT (straight thread) fittings. Unit does not require gas lines or venting.

Features :

• [Instant Unlimited Hot Water] – REQUIRE 2 x Double-pole 40AMP Breakers to Achieve 240V for this On demand tankless electric water heater, providing hot water in 3 seconds when you need it and as long as you need, eliminating wait time, never run out of hot water again and No More cold shower
• [Save Money and Space] – Self-modulating technology regulating the amount of energy required to heat water only when you need it with 99.8% efficient, saving up to 60% on water heating cost comparing to traditional tank water heater. Wall mounted compact size with no water tank, convenient for any spaces, saving floor space and fitting into tight spaces.
• [Smart Operation] – Auto adjusting energy consumption basing on income water temperature and flow, ensuring maximum efficiency, continuous stable temperature and optimal power usage. Digital temperature display allowing adjustment in 1° increment from 80°F to 140°F. Heating element separated from water tube significantly reducing scale, corrosion and mineral buildup on the element, achieving better performance and low maintenance.
• [Easy Installation & Safety Protection] – ETL certified with overheating protection, auto stop heating when detecting no water, quality workmanship for leakage protection
• NOTE – Make sure this water heater is the correct size for your hot water need: 18kW at 240V draw max 76amp; Required breaker 2 x Double-POLE 40AMP; Wire gauge 2 x 8AWG; Unit size 17.12″ x 13.12″ x 3.12″; Water connection 3/4″ NPT. 2-year limite warranty and 24/7 customer support services.