APUS 4500W Electric Tankless Water Heater, 240V, Point of Use, 3s Hot Water

Additional Details from the Manufacturer

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• 1. Instant Hot Water for One Point of Use: Designed for a single sink or similar low-flow application, this 4500W, 220–240V electric tankless water heater heats water on demand without storing a tank of hot water. Under suitable inlet-water temperature and flow conditions, hot water can begin reaching the outlet in about 3 seconds. The adjustable 85–131°F range makes it suitable for handwashing, kitchen prep, bathroom sinks and selected laundry or commercial handwashing stations. It is not intended for whole-house or multiple-bathroom use.
• 2. Up to 99.8% Thermal Efficiency with Self-Modulation: Achieving up to 99.8% thermal efficiency, the self-modulating system activates only when water flows and adjusts power according to real-time flow and temperature conditions. This on-demand operation avoids the standby heat loss associated with traditional storage tanks and helps reduce unnecessary electricity use. Actual energy consumption depends on household usage, inlet-water temperature, selected outlet temperature and flow rate.
• 3. LED Touch Control in an Ultra-Compact Under-Sink Design: Adjust the outlet temperature using the responsive LED touch display. The compact body measures approximately 8.7" × 6.5" × 2.6", making it easy to position under a sink or on a nearby wall where space is limited. Its small footprint is suited to apartments, kitchens, bathrooms, laundry areas, salons, cafés and other single-outlet applications where fast local hot water is more important than whole-home capacity.
• 4. 240V Hardwired Installation with Clear Electrical Requirements: This unit requires a dedicated 220–240V hardwired circuit, a 30A double-pole breaker and 12 AWG copper wire. The 1/2" NPT water connections simplify integration with compatible plumbing. Installation should be completed by a qualified electrician and plumber in accordance with local codes. Confirm the home's electrical service, breaker capacity, grounding and water-line arrangement before purchase; this is not a plug-in appliance.
• 5. Multi-Layer Safety and Durable Cast-Aluminum Heating System: Built for dependable indoor use, the heater includes over-temperature protection, dry-burn protection, leakage protection and an anti-electric-wall safety design that helps isolate electrical risk. The cast-aluminum heating assembly supports corrosion resistance and long-term heat transfer performance, while the compact water path helps reduce stored-water volume. Proper grounding, professional installation and routine maintenance remain essential, especially in hard-water areas.