The #1 Outdoor Tankless Electric Water Heater - Used By Celebs & Pro Athletes
Our Product Testing Teams put the products through detailed side-by-side testing plans, both in the lab and in the field, and carefully assess performance, ease of use, and reliability.
We recommend the best picks Outdoor tankless electric water heater with popular brands below: Iheat tankless, Rheem, Ecosmart, Stiebel eltron, Gasland, Wintemp for you. Read on to find out which is the best for you.



- On demand; continous hot water
- ON/OFF Dial Control with adjustable digital temperature display
- 8kW Model Flow Rate: up to 1.95 GPM
- 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
- 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.
- Fuel Type: Natural Gas
- For use outdoors with freeze protection up to -30 degrees
- 157, 000 BTU (gas consumed per hour)

- SILENT OPERATION – One electronic switch will activate the hot water heater and it’s noise free while in use. Digital temperature display is easy to read, while the interior solid copper heating system does all the power work
- CONTINOUS FLOW – Hot showers will never be interrupted again. Enjoy continuous, on-demand hot water with an unlimited supply, when you want it without wasting any energy when not needed
- WARRANTIES INCLUDED – Stiebel Eltron’s top-rated electric tankless water heaters perform with the highest standards for comfort and reliability. Our 7-Year Leakage and 3-Year Parts Warranties are included with purchase
- 𝗟𝗘𝗗 𝗗𝗶𝗴𝗶𝘁𝗮𝗹 𝗗𝗶𝘀𝗽𝗹𝗮𝘆 - Bright power, the temperature readout as to not get the water to hot or cold.
- 𝗚𝗼𝗼𝗱 𝗳𝗼𝗿 𝗢𝗳𝗳-𝘁𝗵𝗲-𝗚𝗿𝗶𝗱 - Runs on a standard 20 lb. liquid propane tank and is equipped with an electronic ignition powered by two D-cell batteries. Can be used in a variety of scenarios: while you're camping, RVing, hunting, hanging poolside, washing your pets or horses, cleaning your vehicle, or even in your tiny home, greenhouse, or cabin house.
- 𝟭-𝗬𝗲𝗮𝗿 𝗖𝘂𝘀𝘁𝗼𝗺𝗲𝗿 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 - We provide a 1-year Warranty against manufacture defects and lifetime customer support.
- 157, 000 BTU (gas consumed per hour)
- Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
- Recirculation pump ready kit ready.8.4 gal./min. at 35° F rise max
- 【WINTEMP Support】- If you encounter any issues during the usage, you can follow these steps: order--Seller--answer your question.
- 【Multiple Protection】- There is overheat protection, dry-heating protection, electricity leakage protection function, which can ensure your safety. 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.
- 【Instant use】- Tankless Water Heater Electric - KFU135 Applied with 3500W heating system, You don't need to preheat the water, you can use hot water directly by turning on the faucet, Which is convenient and fast.
What do you have to consider before buying the Outdoor tankless electric water heater?
Whether you are a newbie or a professional buyer of the Outdoor tankless electric water heater, you also have to consider some features of this product before purchasing since there are numerous items available in the market right now.
So, what are these features? Reading the following section to figure out some essential things you should keep in mind and think about before buying the Outdoor tankless electric water heater.
Venting
This air flow piping will certainly need to be mounted with the tankless water heater and also might significantly increase the expense depending on the heating unit's place as well as the demands to run the air flow from the heating system to a secure place exterior. Depending upon the design of the home, this can indicate direct ventilation via the basement wall surface or smokeshaft ventilation that runs vertically with your home as well as arises from the roofing system.
Use
If you're seeking a warm water option for an addition, a wet-bar installment or to get rid of a lengthy pipes supply line, a smaller sized point-of-use hot water heater might fit your requirements.
Installation
Electric models are frequently smaller and also can be placed in smaller sized spaces where a gas tankless might not fit. An electrical unit can be put more detailed to the area where warm water is needed, which includes in performance and customer satisfaction. The only extra cost for an electric tankless system would certainly be if a house's electric solution would require to be updated or remodeled.
Power Source
Choosing which power source to use to run your tankless hot water heater can be complicated if you have access to both gas and 240-volt electrical energy. It's much easier to make a decision if you just have very easy accessibility to one or the other. Electrically powered hot water heater will be much less pricey to acquire and install than gas or propane-powered ones. Gas water heaters will certainly be much less efficient than electrical ones, however gas is normallyer than power.
Indoor Vs. Outdoor
Cost
Efficiency
Flow Rate
Final Thoughts
It is a challenge for everyone when shopping for a new Outdoor tankless electric water heater. We hope that the buying guide above will help you broaden your mind when buying anything you want. Luckily, some well-known brands, including Iheat tankless, Rheem, Ecosmart, Stiebel eltron, Gasland, Wintemp, are available as trustworthy resources for you to go first for high-quality and long-lasting products.