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Last update on 2024-05-20 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API
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BEST BUDGET: Rheem 18kW 240V Tankless Electric Water Heater
1. BEST OVERALL: Rheem RTG-95XLN 9.5 GPM Low NOx Outdoor Tankless Natural Gas Water Heater
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9.5 gal/min. at 35-Degree Rise
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UMC-117 remote control and 10-Feet of thermostat wire is included
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Low Nox Version
If you live in a relatively warm, or even very warm, area of the country and have a high water demand, this whole house outdoor tankless water heater is worth considering. It is a must-have on-demand water heater with a great GPM flow rate, an extremely efficient operation, and the EcoNet mobile app. With a 9.5 GPM water flow rate at a 35°F temperature rise, you should be able to run multiple fixtures simultaneously.
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2. TOP RATED:Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater
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External adjustable digital thermostatic control with LED display (+/1 degree accuracy
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Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
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Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
It's small enough to fit under a sink or over a washing machine in a laundry room. Because it is electric, there is no need for venting, making installation simple and cost-effective. This best rheem tankless water heater can save even more electricity because it is self-modulating. It will adjust the flow rate to ensure that the water is heated efficiently and at a constant temperature, even if multiple fixtures are running at the same time.
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3. BEST QUALITY:Rheem Tankless Outdoor Natural Gas Water Heater Non-Condensing 9.5 GPM
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Continuous Hot Water – never run out of hot water, even with back-to-back showers
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Tankless Gas Water Heaters are cost saving and energy efficient
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Reduces Energy Consumption - Automatically adjusts the amount of energy required to heat the water you need
Installation may be less expensive because it is compatible with 12-inch gas lines, whereas Rinnai requires 34 inches. There are no cold water sandwiches with the Rheem, and you don't even need a recirculation pump to keep the water heated because it has Hot Start programming, which keeps the heat exchanger ready to heat the water for a few moments after you turn off the water. If you need to restart it, you will have continuous hot water.
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4. BEST BUDGET: Rheem 18kW 240V Tankless Electric Water Heater
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External digital thermostatic control with LED display (+/1 degree accuracy)
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Most advanced self-modulation, adjust power to meet hot water demand
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Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
You're in luck if your water demand is moderate but higher than most electric tankless heaters can provide. The RTEX-36 can deliver up to 7 gallons of water per minute. This best rheem tankless water heater is self-modulating, intelligently adjusting water flow based on your needs. If your flow rate is too high to produce the required temperature, it will slow the flow to ensure that it is hot at every fixture, preventing you from having endless lukewarm water. Because it does not need to be vented because it is electric, you can easily store it in a closet.
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5. BEST VALUE: Rheem RTEX-24 24kW 240V Electric Tankless Water Heater
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ON/OFF Dial Control with adjustable digital temperature display
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Self-modulating power control
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24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
Rheem's RTEX-24 tankless boiler is both innovative and energy-efficient. This best rheem tankless water heater can produce 5.9 gallons of hot water on demand, which is sufficient for small and medium-sized families. The 24kW 240V electric tankless water heater from Rheem has a compact design that fits into many home areas while remaining stylish. Temperature can be adjusted from 80°F to 140°F in 1°F increments using the digital temperature display.
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OTHER CHOICES:
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BEST CHOICE ($100- $200) Tankless Water Heater Electric 5.5kw 240V
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BEST CHOICE ($200- $300) Titan Electric Tankless Water Heater
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BEST CHOICE (ABOUT $200): Bosch Electric Tankless Water Heater - Eliminate Time for Hot Water
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BEST CHOICE ($300- $400): Camplux Tankless Water Heater Electric 27kW 240V, Instant Water Heater
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