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Description
240-Volt 3.5 kW 0.53 GPM Compact Point-of-Use Tankless Electric Water HeaterAQM tankless water heaters heat water instantaneously and endlessly at 99% efficiency as it flows through the unit. Unlike water heaters with a tank, they save energy because they have no stand by energy losses. AQM tankless point of use models excel 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. They are ideal for residential or commercial
AQM tankless water heaters heat water instantaneously and endlessly at 99% efficiency as it flows through the unit. Unlike water heaters with a tank, they save energy because they have no stand-by energy losses. AQM tankless point-of-use models excel 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. They are ideal for residential or commercial hand-washing sink applications. The sleek, small design allows installation with the unit visible. Venting is unnecessary. Refer to the Sizing Guide and Temperature Rise Chart to determine the correct size you need. Call AquaPower at 800.582.2213 if you have any sizing questions. Meticulously engineered and carefully manufactured, AQM tankless water heaters are designed for years of trouble-free and energy-saving usage.- AQM 4-2 is designed to provide warm water around 90° to 100° for hand washing at a standard-flow (0.66 GPM) lavatory sink
- Requires hard wiring to 240 or 208-Volt electric service with 1 dedicated 15 Amp breaker and 14-Gauge copper wiring
- Provides endless warm water for hand washing at 99% efficiency and saves energy because water is heated only when needed
- Important to carefully match the AQM model to the flow rate of the sink
- Engineered in Germany with the best materials to provide years of trouble-free service
- A special flow switch control protects the nichrome heating element from failure caused by dry-firing
- Can be installed above or below the sink with water fittings pointing either up or down
- Not designed for use at a kitchen sink or a shower, or as a booster heater for any application
- Professional installation recommended
- 5-year leakage and 1-year parts residential and commercial warranty against defects in workmanship and materials under normal use
Features
| Item Weight | 3.44 |
| Minimum Activation Rate (gpm) | .40 |
| Uniform Energy Factor | 0 |
| Water Heater Features | Overheat Protection |
| Required Volt Connection | 240 volt |
| Application Type | Point of Use |
| Flow Rate @ 55 F Rise (gallons/min) | 0.0 |
| Minimum Temperature (F) | 0.0 |
| Product Weight (lb.) | 3.44 |
| Pack Size | 1 |
| Flow Rate @ 65 F Rise (gallons/min) | 0.0 |
| Finish Family | White |
| Wattage (watts) | 3500 |
| Returnable | 180-Day |
| Wattage (watts)2 | 3500 |
| Flow Rate @ 35 F Rise (gallons/min) | 0.68 gal (US)/min |
| Maximum Temperature (F) | 0.0 |
| Heat Exchanger Warranty | 5 Year |
| Amperage (amps) | 14.6 |
| Fuel Type | Electric |
| Indoor/Outdoor | Indoor |
| Flow Rate @ 45 F Rise (gallons/min) | 0.53 |
| Water Connection Size (in.) | 3/8 Comp |
| Product Height (in.) | 6.5 |
| Product Depth (in.) | 3.25 |
| Product Width (in.) | 7.5 |
| Part Warranty | 1 Year |
| Labor Warranty | No Warranty |
| Certifications and Listings | CSA Listed,ETL Listed,UL Listed |
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
4.3 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 3
Ight
Size: 2-pack
Just get the Permatex for a better "spray on", both cans I bought required way too much effort in shaking between spraying. I did shake the can well before use.
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Reviewed in the United States on September 6, 2025
★★★★★ 5
Best choice! Absolutely necessary for anything above basic stock bass.
Bonded to services well, completely removed panel reverberation in my tacoma. Also really made the doors so much quieter even when closing. Very happy with the result.
Used only one set on my 01 tacoma 4 door. Installed inside doors on exterior skin panel, over interior door panel access holes (sealing the door to provide backpressure to door speakers (left drains open)), roof panel, and back wall of cab. Achieved about 70% coverage and am very happy.
2 8in SKAR SVR8 at 1oh on walmart power acustic 2500 (only rated to ~800rms at 2oh, forum showed testing at 1oh worked about 1kw) in 6th order with blow through into cab. With cab gain, im over 130db between ~30 and ~50hz. This was a necessary addition!
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Nice and sticky
Works as it should. No complaints.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Mak sure area is clean before you install
This works amazing, easy to use, great quality. Sticks down great, I will be ordering more for sure.
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Reviewed in the United States on April 29, 2026
★★★★★ 3
Looks good so far, will update once installed
Have not installed this yet, so this is only a first impression review. I bought it to use in the wheel well area on my truck, so I’ll update later once I actually get it on and see if it makes a real difference. So far it looks good out of the box and seems straightforward enough. One thing I’d recommend is making sure you have a sound deadening roller for install, because I would not try putting this on without one. Too early for me to say how well it works for road noise since it is not installed yet, but I wanted to post my initial thoughts for now and will update later.
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Reviewed in the United States on April 2, 2026