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Installing a tankless water heater can cost between $1,000 and $3,500 typically. Most homes install a whole-house tankless water heater system though the heating source can vary. Homes will usually continue to use the same heating source for a tankless water heater as they did with a storage-tank water heater.
Tankless Electric Water Heaters
The energy efficiency of a tankless a water heater also makes it a more environmentally friendly option compared to a tank-style water heater. Tankless units use less natural gas than a traditional, tanked unit since they heat water on-demand and deliver water hotter and faster with less waste. The fixtures in your home that need hot water will each have a flow rate in gpm, commonly listed in the manual or on a label on the fixture. If the fixture’s gpm is unknown, you can time how long it takes to fill a bucket to 1-quart of hot water.
Tankless Water Heater Installation: Is It Worth It?
The EcoSmart ECO 11 is an 11.8kW device requiring 220V and a single 60A breaker. Like many other leading devices, this model uses flow modulation when heating water. This leads to optimal energy conservation while ensuring that changes in supply temperature or pressure have no impact on hot-water output.
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While you can easily perform this maintenance yourself, a professional plumber can also get it done in no time flat. For point-of-use heaters, Stiebel Eltron’s line of DHC Trend Point-of-Use Electric Tankless Water Heaters is our favorite. At $165 for 32,757 BTUs using 9600 watts, and heating up to 6 gallons of water per minute, it’s no wonder why we like it. Whether the water heater runs off electricity or gas can impact how fast the water gets heated.
However, if the inlet water is particularly cold, production can fall to just three gallons per minute. An ETL certification officiates proof of compliance, which means the water heater is safe and healthy to use in your home. Whether or not a tankless water heater is ETL-certified caused it to lose or gain points totaling 5% of the total ranking. The RU199iP RU Model Series from Rinnai is a beast, providing as much as 11 hot gallons of water per minute with 199,000 BTUs. It’s propane powered, so it’s not for every home, and at $1,750, it’s a little pricey.
They only heat water when needed, so very little energy is wasted, lowering utility bills. Electric tankless water heaters are typically more efficient than gas ones; the challenge is finding accurate ratings. With a digital temperature display and dial, the current thermostat settings and the ability to make quick changes come easily. As with the larger versions of this electric tankless water heater, this model is self-modulating, helping to save energy. This clever little electric unit (it’s only 14.5 inches tall) is very quiet and has a flow rate of up to 7.5 GPM and 36,000 watts.
It’s also safe in cold temperatures as there’s freeze protection down to -30°F. For further energy efficiency, you can opt to purchase and add the extra recirculation pump kit. The downsides are that the cost is typically higher up-front, and the unit also requires a drain and a 0.75-inch gas line, which may limit your installation options.
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Tankless water heaters are also easier to repair or replace if something does go wrong. Our next offering is another high-quality electric tankless water heater from Rheem. The reason it’s a little lower on our list is because it bills itself as both a whole house water heater and as a point-of-use water heater. At 44,358 BTUs it would struggle to heat enough water fast enough for even a small family.
Because average water supply inlet temperature varies by location, the ideal tankless water heater in the south might not work at all in the north. And a tankless gas water heater might work great at 8,000 ft. altitude, but not work at all at 12,000 ft. While small and point-of-use models often run from a 120V supply, larger, more powerful models require 240V and usually two or three breakers. Snesrud says homeowners will also want to check their breaker box to see if they have enough available space for a tankless water heater. Shoppers looking to buy the best tankless water heater for their homes will want to know that the process of finding one involves more than just determining whether it will heat sufficient water.
A tankless water heater can be a smart upgrade for your home, paying off in energy savings and convenience. You can maximize your savings while minimizing your spending if you shop for a budget option, like the EcoSmart ECO 27. This electric tankless water heater supports a flow of up to 6.5 GPM and has self-modulating heating technology to keep water temperatures consistent. Instead of a flow switch, as you’d find on some tankless water heaters, the EcoSmart ECO 27 uses a sensor. This prevents a burst of cold water if water pressure drops while the unit is heating. Whether a tankless water heater is worth the cost depends on the hot water needs of your home.
Tankless electric water heaters from other manufacturers don’t maintain a steady temperature if the flow varies. Our exclusive Electronic Temperature Control allows setting the knob on the front cover to the water temperature desired and getting that temperature every time, and all the time, hot water is needed. While every Stiebel Eltron model delivers superior performance, the Tempra® Plus series represents the industry’s high-point of tankless water heater innovation. It also features two different temperature memory presets, making it easy to adjust for personalized needs. Thanks to these and other innovations, the Tempra® Plus ensures that you’ll enjoy endless hot water along with unrivaled efficiency. Physical size is seldom a challenge with electric tankless water heaters.
All this electronic technology also means that Tempra® does not have any mechanical switches. Finally, put all these two considerations all together and pick the model that meets all your requirements. Therefore, you should choose the most suitable model based on where you live. If you live somewhere cold, you should opt for one with freeze protection.
If your home is already equipped with a natural gas line or a propane tank, it makes the most sense to replace the water heater with the same type of unit. By following these maintenance steps, you can significantly extend the life of your tankless water heater and maintain its efficiency. As always, refer to your unit’s manual for specific maintenance instructions and consider hiring a professional for tasks that require technical expertise. Installing your tankless water heater indoors will ensure that it isn’t exposed to the elements. If you live in an area with often changing and harsh weather conditions, an indoor water heater is best.
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