Feb 14 2020

Home depot tankless water heater

Home depot tankless water heater-Home depot tankless water heater
Home depot tankless water heater-Our team of experts has selected the best tankless water heaters out of hundreds of models. Don’t buy a water heater before reading these reviews.

Best Tankless Water Heaters

The best water heater on the market. This product saves you cash, produces ample hot water, and comes with superior company backing.

Owners control temperature in one-degree increments for greater efficiency. An energy-efficient, money-saving model. Lifetime warranty.

Slightly lower flow rate than pricier models, but not a noticeable difference.

An affordable model that also saves on operating costs; a solid choice for eco-conscious consumers who are watching their budgets.

Affordable and cost-efficient. Operates by battery and only powered by gas when water is being used. Compact design with a small footprint.

It’s a bit challenging to install and takes a while to heat. Water capacity isn’t ideal for large families.

A gas-fed model that is suitable for smaller homes. Professional installation, though somewhat costly, is suggested.

Turns itself off if it overheats. Includes a frost guard for colder temperatures. Larger connections allow for higher flow rates.

Limited warranty is only valid if the unit is installed by a certified professional.

Biggest strength of this solid machine: reliable, satisfying water temperature and flow.

An electric model featuring top-notch temperature control through its automatic, Advanced Flow Control mechanism.

3-year warranty is not as long as that of some of the other models.

A machine capable of powering many appliances and bathrooms at once. Quality issues are rare, but they do exist.

This natural gas model can be converted to propane. It offers the largest temperature range of all the models on our shortlist.

A few reports of quality-control issues.

We purchase every product we review with our own funds — we never accept anything from product manufacturers.

Traditional water heaters are fickle friends in many ways. During heavy use, the 40- or 80-gallon reservoir can be emptied faster than it refills and heats, leaving someone in a cold shower. Heating and maintaining that much water at once isn’t very energy efficient, and if the heater suffers a catastrophic failure — that’s a lot of water pouring into your attic or garage.

While water heaters have been a staple in homes for decades, their inefficiencies have led to a new breed of home hot water systems — the tankless water heater. The tankless water heater is a mega-sized version of an electric tea kettle. There is no tank of standing water. Hot water is supplied through an element that heats the water just before it’s used by a cook who needs hot water for making the evening meal, or when it’s time for the kids to take a bath before bed.

If you’re ready to buy a tankless water heater, please check out our five top selections. If you’d like to know more about what makes tankless water heaters so special, we invite you to read on and take advantage of our shopping guide.

How does a tankless water heater work?

Tankless water heaters only heat water when you need it, so minimal energy is wasted.

The beauty of a tankless water heater is its ability to provide a continuous supply of hot water. Compared to a traditional water heater, a tankless option is more efficient in its delivery, and is a big energy saver. A tankless water heater is a heating element (either gas or electric) that connects directly to the home’s water pipes. When a hot water tap is turned on, water flows through the element and is sent to its destination.

Electric heating elements provide a slower flow rate than gas-powered models. A sensor in the heating element turns on the burner and as water enters the unit, a thermostat springs into action to get the water quickly to the desired temperature.

Gas-driven tankless water heaters need to ventilate through the ceiling and outside the house. Larger tankless systems, called gas condensing units, are armed with a second heating system. These provide more hot water to homes wanting to simultaneously use a dishwater, shower and kitchen sink.

Product in depth

EcoSmart ECO 27 Electric

The Ecosmart ECO 27 Electric Tankless Water Heater is easier to install than a gas unit, but running costs depend on local supplier rates. Homeowners and professionals alike give the Ecosmart high ratings. Comments like “I’ve saved a lot of money on my energy bills!” and “I never run out of hot water!” are common.

Tankless water heaters considerations

Several factors go into deciding whether a gas-powered or electric-powered tankless water heater is right for you. The most important is the availability of a gas line at the installation point. If you don’t already have a gas feed in the house, you’ll have to have the appropriate type of service installed. It may be simpler and most cost effective to just go with an electric heater.

Electric water heaters are less expensive. In some cases, they can cost as little as $500. Base prices don’t usually include installation, however, so be sure to factor that in.


Gas models are easily more efficient than traditional tank-based units. However their efficiency peaks somewhere near 85%,while electric models are more than 90% efficient. Even though fuel is general less expensive than electric energy, many select the electric model because they last longer, and are cheaper to install.


When installing a gas-powered tankless water heater, new vents and air supply ducts must be put in place to ventilate the byproducts of burning gas. If placed in a tight space, installation can be more rigorous, due to the need of alternative venting, such as side-wall venting.

Electric models are often smaller and can be placed in smaller spaces where a gas tankless might not fit. An electric unit can be put closer to the area where hot water is needed, which adds to efficiency and customer satisfaction. The only additional cost for an electrical tankless unit would be if a house’s electric service would need to be updated or remodeled.

A water heater is the second most energy-sapping appliance in the house, after climate control systems.

It’s important to buy a tankless water heater with enough capacity to meet all your simultaneous hot water demands. A small model won’t be able to supply a clothes washer, shower, and kitchen sink all at the same time. Before you purchase, create a list of hot water uses in your home, and try to anticipate scenarios where multiple locations will need hot water. Check the manufacturer ratings and customer reviews to determine whether a model you’re considering will provide enough water at the most high-demand times.

Indoor vs. outdoor

No convenient space inside the house for a tankless water heater? Some models are designed for mounting on the outside of the house, taking up space that you otherwise might not be using.

Product in depth

Marey Gas 10L Tankless Water Heater

The Marey Gas 10L Tankless Water Heater is one of the more easily installed gas models on the market. Most customers purchase this unit for smaller homes, such as vacation cabins, and like the fact it can run in areas with frequent power outages. Some comment that the unit changes temperatures without warning, which can lead to going from scorching hot to cold in a matter of seconds.

Maintaining your tankless water heater

If it’s low maintenance you want, an electric tankless water heater is your best bet. All that is required is the need to periodically change the unit’s screen filter. The safety and efficiency of a gas-powered model’s operation should be inspected once a year.

Tankless water heaters can last up to 20 years, which is about twice that of a standard hot water heater.

Under $100: While there are models in this low price band, they come with some limitations — some are only powered by propane (which adds complexity to the installation and ongoing use) while others are geared for only warmer climates or for instances where only one usage (such as a sink) is needed.

Under $150: In this slightly higher price range, again there are models that use propane fuel or built for a single purpose such as an outdoor shower. However, for under $150, you begin to find some electric tankless models, albeit at a lower wattage, which translates to less power.

Under $250: Electric models in this range deliver better performance, such as greater efficiency and more water flow on demand. Some of these models do require installation close (within 50 feet) of the point of use, but that is offset by the fact most claim to be easy self-installs.

Under $500: To move up to gas-powered tankless models, the price jumps significantly. These models will provide greater flow capacity, and they’re more likely to offer additional features, such as digital temperature setting.

  • Under $2,000: If you want a unit that will provide a lot of hot water on demand with a strong flow to multiple points of use, it will cost you. Along with the everyday excellent performance, these premium models typically have longer warranties, top-tier customer service, and great durability.
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    Home depot tankless water heater


    Written by FBI

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