3.5 kW, 120-Volt Non-Thermostatic Tankless Electric Water Heater, Commercial
- Designed for handwashing and other fixed flow applications
- Low activation flow starting at 0.25 GPM turn on
- Point-of-use, Continuous on-demand hot water
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Product Details
About This Product
Rheem's commercial handwashing portfolio consists of Thermostatic Tankless Electric Water Heater and Non-Thermostatic Tankless Electric Water Heaters. Each of these tankless electric water heaters can be installed in any orientation at the point-of-use with just a single water line for savings in both labor and materials. Our handwashing products deliver safe and continuous hot water on demand. Each tankless electric water heater is easy to install, dependable, and supported by a knowledgeable customer service team. This Rheem Non-Thermostatic Tankless Electric Water Heater is ideal for handwashing and fixed-flow applications at the point-of-use for continuous on-demand hot water. The compact size mounts in any direction. Features include InfoCue™ visible LED indicator that delivers system status and operation feedback. SafeStart™ Technology that engages upon start-up and any power outage to help avoid dry-fire occurrence.
Highlights
- Output temperature determined by flow rate and incoming water temperature
- Low activation flow starting at 0.25 GPM turn on
- InfoCue visible LED indicator communicates system status and heater operation feedback
- Self-diagnostics with intelligent controls actively protect heater in installed environment
- SafeStart technology engages upon start-up to help avoid dry-fire occurrence
- Mounts in any orientation for a flexible installation
- Compact size fits almost anywhere; suitable for ADA compliant facilities
- Save water and time by installing unit at the point-of-use
- Integral 3/8 in. compression fittings; no soldering or sweat connections required
- On-demand, endless hot water
- Click here for more information on Electronic Recycling Programs
- Return Policy
- California residentssee Prop 65 WARNINGS
Product Information
Specifications
Dimensions: H 9.75 in, W 5 in, D 3 in
Dimensions
Kilowatt | 3.5 |
|---|---|
Product Depth (in.) | 3 in |
Product Height (in.) | 9.75 in |
Product Width (in.) | 5 in |
Water Connection Size (in.) | 3/8 in |
Water Connection Size (in.) | 3/8 |
Details
Amperage (A) | 29 A |
|---|---|
Application Type | Commercial |
Efficiency Level | Super High |
First Hour of Delivery (gallons/hr) | 15 |
Indoor/Outdoor | Indoor |
Product Weight (lb.) | 3.5 lb |
Required Volt Connection | 120 volt |
Returnable | 90-Day |
Tank Warranty | 2 Year |
Uniform Energy Factor | 1 |
Water Heater Features | Wall Mounted |
Water Heater Profile | Compact |
Water Heater Type | Electric |
Wattage (watts) | 3500 W |
Warranty / Certifications
Certifications and Listings | UL Listed |
|---|---|
Part Warranty | 2 Year |
Questions & Answers
What's a recommendation for a 120v tankless water heater that could support a conservative shower maybe 120 degrees for a quick warm shower
Hi, A 120‑volt tankless water heater cannot support a real shower, including a “conservative” or “quick warm” shower at 120°F. Even the strongest 120V units only heat 0.5–1.0 GPM, which is far below the 1.5–2.0 GPM needed for a usable shower. This is a physics limitation, not a brand limitation. Derius
Can this support a bathtub fill that is also using a tanked water heater?
Hi, No, the RTEH2412 cannot support filling a bathtub, even if you also have a tank‑type water heater. This model is for small sinks only and cannot assist with bathtub filling, even when used alongside a tank‑type water heater. Derius
How much gallons does it holds?
Hi, It doesn’t hold any gallons, the RTEH2412 is a tankless unit, so its storage capacity is 0 gallons. It heats water on demand as it flows through the heater rather than storing any in a tank. Because it’s only 2.4 kW at 120 volts, it’s designed for very small point‑of‑use applications like a single sink, not whole‑home use. Derius
Will it heat a shower and sink?
Hi Deborah, No, the RTEH3512 cannot heat a shower. It is only designed for a single sink/hand‑washing fixture. At 3.5 kW and 120 volts, it does not produce enough temperature rise or flow for a shower. Derius
Can I use this for a shower
Hi Kaylon, No, the RTEH3512 cannot be used for a shower. The RTEH3512 (3.5 kW, 120‑V) is designed only for handwashing and other very low‑flow point‑of‑use fixtures. It cannot produce enough hot water for a shower under any conditions. Derius
For this unit running shower
Hi Richard, To better assist you, please call 800-543-6163 between the hours of 8 A.M. and 5 P.M. EST Monday through Friday. Derius
Can two or three of these 3.5kW (120v) tankless water heaters be piped in parallel to get enough flow for a shower? Would more than 3 be needed?
Hi, No, this is the wrong product for a shower, even if you use 2–3 (or more) in parallel. Derius
I have a small camper, current hot water tank is 6 gallons, would this work if I installed it after my hot water tank and would it pick up after I ran out of hot water to get a longer shower.
Hi, Not effectively. The RTEH3512 (3.5 kW, 120V tankless) is designed for hand sinks or very low‑flow fixtures, not showers. Derius
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Customer Reviews
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Thank you for sharing your feedback. We’re glad to hear the unit was easy to install and is working great for you. We appreciate you taking the time to leave a review and share your experience.
Derius
Thank you for sharing your feedback, Jerry. We’re very sorry to hear the heating element failed on the first day. That’s incredibly disappointing, especially with a brand‑new unit. We appreciate you taking the time to let us know about your experience.
Derius
We are really sorry to hear about your experience with your Water Heater. It must have been frustrating to find out it was too small for your needs and then have it fail when you tried to adjust it. Your feedback is important, and we hope you find a more suitable solution soon. Thank you for sharing your experience.
Derius
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Compare Key Features
Product Snapshot | |||
|---|---|---|---|
Ideal for handwashing stations, this heater provides endless on-demand hot water, ensuring energy efficiency and convenience. | Great for homeowners looking for increased hot water output , making showers longer and more enjoyable . A great choice for those who need more hot water without replacing their existing water heater .. | Ideal for homeowners looking for on-demand hot water, making showers and faucet use easier and more efficient. | Ideal for homeowners looking for endless hot water, making showers and chores easier. This tankless water heater saves space, energy, and money with its compact size and self-modulating technology. |
Flow Rate | |||
0.25 GPM | 1.4 GPM | 3.51 GPM | 3.51 |
Power Output | |||
3.5 kW | 7.2 kW | 18 kW | 18 kW |
Temperature Control | |||
Adjustable outlet temperature 80-140 degrees F | Electronic temperature control adjustable in 1-degree increments from 80-140 degrees F | Digital thermostatic temperature control in 1-degree increments | |
Maximum Temperature | |||
140 F | 140 F | 140 F | 140 F |
Smart Connectivity | |||
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