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Description
Mini 3.5-1 Point-of-Use Electric Tankless Water HeaterStiebel Eltron Mini compact tankless point of use models excel at supplying warm water at a constant temperature for hand washing at a sink. They are ideal for residential or commercial hand washing sink applications. The model must be carefully matched to the flow rate of the sink for proper operation. Mini tankless water heaters heat water instantaneously and endlessly at 99% efficiency as it flows through the unit. Unlike tank water heaters, they
Stiebel Eltron Mini compact tankless point-of-use models excel at supplying warm water at a constant temperature for hand washing at a sink. They are ideal for residential or commercial hand-washing sink applications. The model must be carefully matched to the flow rate of the sink for proper operation. Mini tankless water heaters heat water instantaneously and endlessly at 99% efficiency as it flows through the unit. Unlike tank water heaters, they save energy because they have no stand-by energy losses. The sleek, small design allows installation with the unit visible. Venting is unnecessary. Use the Sizing Guide and Technical Data Chart to determine the correct size for your application. Call Stiebel Eltron at 800.582.8423 with any questions. Meticulously engineered and carefully manufactured, Mini tankless water heaters are designed for years of trouble-free and energy-saving usage.- California residents
- Mini 3.5-1 is designed to provide warm water around 90° to 100° for hand washing at a standard flow (0.66 GPM) lavatory sink
- Mini 3.5-1 is shipped with a 0.66 GPM pressure compensating flow reducer/aerator that fits most faucets and should be installed
- Excels at supplying warm water at a constant temperature for hand washing at a sink but must be carefully matched to the flow rate of the sink to operate properly
- Requires hard-wired 120-Volt electric service, 1 dedicated 30 Amp breaker, 10-Gauge copper wiring, and has 3/8 in. compression plumbing connections
- Not designed for use at a kitchen sink or a shower, or as a booster heater for any application
- Because venting is not necessary, installation can be near the sink to save water and wait time for hot water
- Can be installed above or below the sink with water fittings pointing either up or down
- Uses standard flex connections for easy installation
- Made in Germany
- Professional installation recommended
Features
| Item Weight | 3.44 |
| Minimum Activation Rate (gpm) | .40 |
| Flow Rate @ 45 F Rise (gallons/min) | .53 gal (US)/min |
| Uniform Energy Factor | 0 |
| Flow Rate @ 55 F Rise (gallons/min) | .43 |
| Application Type | Point of Use |
| Pack Size | 1 |
| Finish Family | White |
| Returnable | 180-Day |
| Heat Exchanger Warranty | 2 Year |
| Commercial/Residential | Commercial,Residential |
| Required Volt Connection | 120 volt |
| Flow Rate @ 35 F Rise (gallons/min) | 0.68 gal (US)/min |
| Amperage (amps) | 29 |
| Fuel Type | Electric |
| Indoor/Outdoor | Indoor |
| Wattage (watts) | 3.5 |
| Maximum Temperature (F) | 122 |
| Minimum Temperature (F) | 86 |
| Product Weight (lb.) | 3.44 lb |
| Flow Rate @ 65 F Rise (gallons/min) | 0 |
| Water Heater Features | Wall Mounted |
| Wattage (watts)2 | 3.5 |
| Product Width (in.) | 20 in |
| Product Height (in.) | 48.375 in |
| Product Depth (in.) | 20.5 in |
| Water Connection Size (in.) | 3/4 |
| Certifications and Listings | CSA Listed,ETL Listed,UL Certified |
| Labor Warranty | No Warranty |
| Part Warranty | 3 Year |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 1
DO NOT BUY (lasted less than 7 months)
Size: 11, Color: Black, Size: 11, Color: Black
I bought these for work as a bartender in August of 2025. By December, the tops were scuffed, frayed, and peeling beyond repair, and by February, the soles were coming off. I’ve never had a pair of shoes with such low quality.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Most comfortable shoes, right out of the box!
Size: 8.5, Color: Cognac Napa Leather
Oh my! So, my ordering of shoes online has been hit or miss - 1/2 size too big or too small; too wide or not wide enough. Enter these Marc Joseph shoes… such a game changer. They fit like a glove, exceptionally comfortable, and easy to slip in and out of. I like them so much that I am shopping for another pair. So far, the size, quality, fit, feel, look, and comfort make this pair my dedicated first pick. Btw, I have been wearing them for six hours and they are still very comfortable! I highly recommend these shoes.
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Me gustaron
Size: 9.5 Wide, Color: Black
Llego exactamente la talla que pedí, son como se ven en la foto!
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Comfortable dress shoe.
Size: 7, Color: Brown Napa Leather
Finally a comfortable dress shoe. It's both comfortable to walk in and looks and wears like a more traditional dress shoes for the office.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Slip-on ready and great quality
Size: 9, Color: Black
These shoes were stuff for the first half hour but then feel great. Well worth the chance and money. Great quality and slip-on easy
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Reviewed in the United States on May 22, 2026