The 10 Best Demand Hot Water Tank Reviews & Comparison

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. Mini-tank water heaters are the perfect solution for a variety of applications such as small homes, garages, offices, in-law suites and anywhere you need hot water produced at the point-of-use.

Features :

• Energy & Space Efficient – No need to wait 30 minutes for preheating and limited use of hot water like with a tank water heater. Tankless for endless hot water.
• Satisfy Whole Family: With 5.28 GPM and 150,000 BTU heating capacity through propane gas intake, it is suitable for 2-3 outlets for the whole family. with a UEF of over 0.82, the high energy conversion rate can effectively reduce energy loss, saving the family energy and money.
• Convenient, Easy Installation – Camplux tankless water heater is perfect with customized vent pipe CP-70 together for better ventilation performance for indoor installation.The package does not include hot and cold isolation valves, pressure relief valve and venting, please purchase separately.
• High-Rise Wind Resistance – The electric hot water heater with 90°wind isolation design, this instant hot water heater can anti backflow wind in high floors.
• Quality Service: Camplux offers 1 years of service and you can contact us directly by email if you encounter any problems.We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.

Features :

• 【SAFE DURABLE & LONGEVITY】304 Made of stainless steel and never rust，Anti-leakage plug，Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant，This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
• 【SMART INVERTER FOR ENERGY SAVING】Digital Display，Automatic heat preservation and storage of hot water, 3.0 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%，Maximum temperature167℉，The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
• 【EASY TO USE】storage tank electric water heater with easy-to-operate knob temperature adjustment design，Easy to control warmth.Vent valve, Tee pipeline， pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
• 【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，8-15 minutes to heat to your desired temperature).
• 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 14.6”L x10.2”W x11.4”H; 8.6lbs; 1/2″NPT NPT. 1.5 kW, 110-120 volts. One-year warranty and 24H customer service support, feel free to contact us.
• 【SERVRLF】If you have any questions about the product, you can contact us in time, and the customer service is online 24 hours a day for you
• 【UPGRADE】According to the customer feedback, the cylinder thickness of the water heater has increased from 0.8mm to 1.2mm. In order to make installation easier, the T-tube has been replaced with a new one! We will constantly improve our products.

Features :

• 【Endless Hot Water】- WINTEMP Tankless Water Heater Electric – KFU135 Applied with 3500W heating system, It provides an endless supply of hot water in a short time,Instant hot water at 73℉ is available in seconds. no need to wait for preheat nor to worry about the temperature variation. It is perfect companion for sinks, Bring you the perfect experience of comfortable home.
• 【Rotatable Digital Display】- Unique appearance design, High strength ABS splash proof casing, With a rotatable digital display, you no longer need to worry about turn the water heater upside down.
• 【Save Energy】- WINTEMP The hot water heater adjusts power input based on flow rate and temp setting in real time. Less power will be applied by the system when waterflow reduced, so that energy saving up to 99%, which can help you save a lot of heating costs. Unlike a tank heater, it maintains water temperature even when not being used.
• 【Easy to Install】- The portable water heater has a mini body, It can be tuned upside down with a horizontal and vertical tilt, and can be installed anywhere. Size: 9″ x2.6″ x 8.5″, Standard 1/2 interface(inflow or outflow), can be directly connected to household conventional hose connectors.
• 【Safe to Use】- There is overheat protection, dry-heating protection, electricity leakage protection function, which can ensure your safty. Safety Certified: Approval by ETL and Qualifies for UL. Included Components: 1.Water Heater 2.Rubber plug and screw 3.Operation and Installation instructions 4.equipped with external power cord, easy for power connection.
• 【WINTEMP Support】- If you encounter any issues during the usage, you can follow these steps: order–Seller–answer your question.

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 energy 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.

Features :

• 2 PCs 16” long 1/2”FIP ,Stainless steel water hoses ,Vent valve,included
• 【NOTE】The cold water pipe has a safety valve, which is marked with a water pressure of 0.75MPa. When the water pressure in your home is greater than this value, the safety valve will automatically drain. At this point, you only need to contact us, we will send you a 0.9MPa exhaust valve, you can solve this problem
• 【SAFE DURABLE & LONGEVITY】Made of stainless steel and never rust，Anti-leakage plug，Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant，This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
• 【SMART INVERTER FOR ENERGY SAVING】Automatic heat preservation and storage of hot water, 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%，Maximum temperature149℉，The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
• 【EASY TO USE】storage tank electric water heater with easy-to-operate knob temperature adjustment design，Easy to control warmth.Vent valve, Tee pipeline， pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
• 【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，8-15 minutes to heat to your desired temperature).
• 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 13.0”L x11.4”W x10.6”H; 9.5lbs; 1/2″NPT NPT. 1.5 kW, 110-220 volts. One-year warranty and 24H customer service support, feel free to contact us.
• If you have any questions about the product, you can contact us in time, and the customer service is online 24 hours a day for you

Features :

• 【SAFE DURABLE & LONGEVITY】Made of stainless steel and never rust，Anti-leakage plug，Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant，This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
• 【SMART INVERTER FOR ENERGY SAVING】Automatic heat preservation and storage of hot water, 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%，Maximum temperature149℉，The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
• 【EASY TO USE】storage tank electric water heater with easy-to-operate knob temperature adjustment design，Easy to control warmth.Vent valve, Tee pipeline， pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
• 【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，8-15 minutes to heat to your desired temperature).
• 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 13.0”L x11.4”W x10.6”H; 9.5lbs; 1/2″NPT NPT. 1.5 kW, 110-220 volts. One-year warranty and 24H customer service support, feel free to contact us.
• If you have any questions about the product, you can contact us in time, and the customer service is online 24 hours a day for you
• 【Product upgrade】On June 25, 2023, the product will be fully upgraded – the 304 stainless steel inner liner of the water heater will be thickened to 0.04 inches (1.1mm), resulting in a longer service life– The weight of a single unit has increased to 8.4ib (3.8kg), with replacement of insulation materials and foam insulation materials, the insulation effect has been improved by 10 times, making it more energy-efficient!
• Note: Due to the improvement in product quality, the warranty period for water heaters purchased after July 4, 2023 is 2 years！According to the buyer’s feedback, some water heaters have quality issues. Based on the buyer’s pictures, I found that there is no pressure relief valve installed at the water inlet (blue) of the water heater! Please install the water heater correctly according to Figure 6!

Features :

• 【No More Wait for Hot Water】- Point of use 2.5 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Adjustable temperature range from 50°F to 149°F
• 【Easy Installations】- Dimensions 12.95″W x 12.95″H(16.49″ with valve) x 11.5″D compact design, can be wall or floor mounted under sink / counter, plug into a standard 120V outlet.
• 【Incoloy 800 Stainless Steel Heating Element 】- Excellent at resisting corrosion, as well as handling and transferring heat at high temperatures, no scaling, heating efficiency up to 99%. Enhancing the water heater’s lifespan and durability
• 【Enamel Coating Glass-lined】- Gold porcelain linning for better insulation and preventing leaking, CSA T&P Relief valve CASH USA made, UL certified ensuring a safe long service life
• 【Specifications and Warranty】- Dimensions: 12.95″H x 12.95″W x 11.5″D; Weight: 15.4 lbs; Water connections: 1/2″ NPT, Electrical requirements: 1.44 kW at 120 volts, plug-in connection with 2 feet power cord; Max water pressure: 150PSI; Nominal current: 12A. 3-year Limited Warranty for the tank, 1-year warranty for parts and 24hours customer service

Features :

• Hot Water on Demand: Powerful 18kW 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 up to 3 simultaneous applications or a small apartment in hot climates. Ideal for bathrooms 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 2 x 40 amp single-phase double-pole breaker, 2 x8 AWG wire size and 240V; Standard 1/2 in. NPT (straight thread) fittings. Unit does not require gas lines or venting.

Features :

• No more waiting for the water tank to warm up or running out of warm water halfway through your shower; With this amazing machine, you can have a steady stream of hot water flowing to your faucets or shower without waiting for the tank to warm up
• There is a forced exhaust structure that keeps the air safe and clean while and after entering the combustion chamber; There is also a dust net to make sure no dirt gets into the tankless water heater
• There is a low water pressure startup, which helps to protect the heater and make it easier to use