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Rheem 18kW 240V Tankless Electric Water Heater & Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

    • Based on 1,650 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, May 17
Order within 4 hours and 47 minutes
Available payment plans shown during checkout

Style: Indoor Installation


Features

  • Product 1: External digital thermostatic control with LED display (+/1 degree accuracy)
  • Product 1: Most advanced self-modulation, adjust power to meet hot water demand
  • Product 1: Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Product 1: Simple installation bottom 3/4 inch NPT water connections
  • Product 2: 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
  • Product 2: 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)
  • Product 2: INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  • Product 2: 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)

Description

Rheem 18kW 240V Tankless Electric Water Heater This tankless electric water heater is ideal for mid-range whole-home applications. This unit is ideal for single shower applications in the Midwest. The Rheem Performance tankless electric water heaters offer a continuous, endless supply of hot water. A lower kilowatt unit can provide hot water on demand for single or multiple point-of-use applications while a higher kilowatt unit could provide hot water for a whole house depending on the inlet ground water temperature. Tankless electric water heaters save space, save energy, save money, and require no venting. The sleek, compact size, 90 percent smaller than a tank, allows you to save space and place the unit wherever you want, including under a sink. Tankless units only draw energy when hot water is flowing, while traditional tanks are constantly drawing energy to keep the water in the tank at the desired temperature. Rheem's self-modulating technology can save Up to 50 percent on your water heating bill. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2. 5-Gallon (ES2. 5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted. Troubleshoot: (1) Water does not get hot- Make sure the power supply is on and working If the indicator light works properly but temperature does not get hot at the tap, test for a plumbing crossover; shut off cold supply to heater and open hot water tap. There should be no water flowing. Any continued flow indicates a crossover which will effect the temperature and will need to be corrected Call a qualified service technician to test the resistance of the heating element (8-10 ohms). Heating element should be replaced if readings are outside these values (2) Leaking- Check water fittings and T & P fitting on top of tank Remove front cover and inspect heating element gasket If tank is leaking call Bosch Water Heating for warranty claim if still within warranty period Check anode rod. Other troubleshoot solutions are available on the installation manual Pg-11.

Brand: Rheem


Product Dimensions: 13.75"W x 13.75"H


Wattage: 18000 watts


Voltage: 240 Volts, 120 Volts


Brand: ‎Rheem


Product Dimensions: ‎13.75"W x 13.75"H


Wattage: ‎18000 watts


Voltage: ‎240 Volts, 120 Volts


Item Package Quantity: ‎1


Date First Available: November 3, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Works Well
Style: Heater
This unit works very well for my 3 bed/2 bath 1400 sq-ft home. I’ve been running it for a couple of months now to see how well it was going to handle the whole home. Set at 140° it handles two showers at the same time with some hot water to spare for say the bathroom sink if needed. Rarely do we need any extra than the two showers. You do have to be careful when running a tub of water as some faucets can outflow this unit. I have to run our garden tub about 3/4 from wide open so the water stays hot. If your using this for a whole home unit I recommend setting at 140° or 135° but nothing lower. I tried 130° and the two showers were hard to make warm with straight hot going in both. At 140° you can split hot/cold so both get fair amounts of hot water. My only complaint is as other mentioned LED lights will flicker when it kicks on as it takes 75 amps of power to run. I installed this myself with a friend to help run wire, and as long as you know what your doing it’s very easy to wire up. DO NOT ATTEMPT IF YOU HAVE NO ELECTRICAL KNOWLEDGE. Please have it professionally installed if you have any doubts. If you do install yourself make sure and read what size wire it takes as it needs bigger wire than your traditional tank water heaters. Overall I’m very pleased with this unit as we have 5 kids so running the dishwasher, doing laundry, and bathing can use A LOT of water for us and the 50 gal water heater we had just couldn’t keep up. This one is doing great and haven’t noticed any significant water temperature fluctuations other than maybe for the first week which I call a break in period. One shower could get hot then cold several times before getting out. But after the first 4-7 days of usage it leveled out and a hot shower stays hot no matter how long or short it is. Hope this helps anyone looking into these water heaters! ... show more
Reviewed in the United States on April 25, 2021 by Jarod Dunn
    • Less Space and Works Great!
Style: Heater
The system works well in my two bedrooms, one bath home. We recently renovated an older home that we purchased and installed the Rheem 18kw tankless heater in place of the 40-gallon tank system that was there. It’s been only a few months but the system performs well running the washing machine, dishwasher and shower all running at the same time. In addition to heating the water it also takes up much less space than the prior 40-gallon unit it replaced leaving us much greater closet space for other items! I’m glad that we also purchased and installed the HYDRO MASTER Tankless water heater value kit with the unit because it allowed me to easily adjust the water flow into the tankless heater which would initially sometimes show an E5 error message indicating the water flowing through the unit was going too fast to heat the water sufficiently. The value kit allowed me to easily adjust the water flow into the unit as needed which resolved the issue without needing to call a plumber as recommended in the troubleshooting notes. So far so good and I plan to purchase another for my next renovation project. ... show more
Reviewed in the United States on February 10, 2024 by Julian
    • Cost savings in a small box!
Style: Heater
a 10+ year old rheem tank needed to be replaced. it wasn't broken but end of service life. and so much so if you drain it. after a lot of research I decided to go with tankless. fearful at first because hey is this truly better? the idea of having on demand seemed appealing. cost savings, of course. but then what type to get?! In the end I settled for a 18k rheem. ecosmart is also well reviewed, but supposedly this is just a rebranded rheem? (like dewalt and black/decker). It is super easy to install. it is small, frees up space, another bonus. costing half of a tank heater. if you can do it yourself... the installation cost is high, as you will have to run new electric and change some plumbing, but that is no biggy. you'll spend about $60 for a valve kit, $50 sharkbites and pex and some for the 8 gauge wire (that can add up if it is a long run btw). for this model you need 2x40amp breakers the water is instantly hot, it easily serves 2 showers, one shower+dishwasher and laundry (tested!) I am very very impressed. also it feels cleaner as there is no water sitting in the tank (you should have seen the drain I had to do from the old tank to get it out of the way). highly recommend a tankless heater and this model works for our household. note: read about technical issues, so far all good, but will update if experienced. installation cost will add up if you can't do it yourself and requires logistics (between plumber and electrician). another installation note: when you get a valve kit with pressure relief (required by most code), it is effectively a gender changer. so when you get flexible hose (female), you need a M/M nipple to attach it to the valve kit... (that is another $20 for 2 nipples to take into consideration). That nipple needs to be taped on the valve attach side, the flex hose side has a o-ring and doesnt need tape (and don't add it either as it will leak) ... show more
Reviewed in the United States on August 7, 2023 by xander
    • Unlimited hot water
Style: Heater
The family enjoys this addition to the home. It was fairly easy to install. Most difficult part was figuring out where to put it, and running the new water lines to it. We run it at 110 degrees and it keeps up. I gave it four stars, reason, if I have 2 items running at a time (shower and sink) the shower looses all hot water and it goes the sink. Will update after I rework the water lines ... show more
Reviewed in the United States on January 28, 2024 by Chris Warfield

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