Instant Hot Water Dispenser System Under Sink – ODM Manufacturer & Supplier
Product Overview
The Instant Hot Water Dispenser System Under Sink is designed to deliver near-boiling filtered water instantly, making it the perfect solution for modern kitchens, offices, and hospitality spaces. Installed neatly under the counter, it combines a multi-function faucet, a compact water boiler, and an advanced filtration system to provide safe, clean, and convenient hot water on demand.
As a professional ODM manufacturer, Xiamen Smart Water Technology Co., Ltd. is the trusted partner behind many leading global drinking water system brands. We offer tailored ODM solutions, international distribution, and wholesale partnerships for businesses seeking to expand their product lines with reliable, high-quality under-sink hot water systems.
Key Features & Benefits
- Instant Hot Water – Provides near-boiling water (≥194 °F / 90 °C) within seconds, Choose from 14 precise temperature presets (45°C–98°C) .
- Built-in Filtration – Reduces chlorine, odors, and impurities for cleaner, better-tasting water.
- Space-Saving Design – Under-sink installation keeps your countertop clutter-free.
- Easy Maintenance – Filter replacement recommended every 6-12 months.
- ODM & Wholesale Services – Supporting global brands with private-label solutions.
- Energy Efficient – Rapid reheating ensures minimal energy waste.
Instant Hot Water Dispenser System Technical Specifications
| Specification | Details |
|---|---|
| Rated Voltage / Frequency | 110-120V/60Hz, 220-240V/50Hz |
| Rated Power | 1300 W |
| Required Counter Depth | 0.196–1.18 in (0.5–3 cm) |
| Inlet Water Pressure | 30–43.5 psi |
| Source Water TDS | ≤200 ppm |
| Feedwater Temperature | 41–100 °F (5–38 °C) |
| Ambient Operating Temp. | 41–100 °F (5–38 °C) |
| Operating Humidity | 10–60% |
| Filter Replacement | Every 6-12 months |
Boiler & Faucet Details
| Specification | Details |
|---|---|
| Boiler Dimensions (WxHxD) | 7.48 × 10.44 × 7.48 in (19 × 26 × 19 cm) |
| Faucet Spout Reach | 5.48 in (13.93 cm) |
| Boiler Net Weight | 9.04 lb (4.1 kg) |
| Faucet Net Weight | 3.08 lb (1.4 kg) |
| Boiler Tank Volume | 2.4 L |
| Initial Heating Time | 8–9 mins |
| Reheating Time | 2–3 mins |
| Hot Water Flow Rate | 1.5 L/min at ≥194 °F (90 °C) Choose from 14 precise temperature presets (45°C–98°C) |
| Ambient Water Flow Rate | 5.6 L/min |
| System Type | Non-pressure |
Instant Hot Water Boiler, Faucet, and Components
| Part | Description | Part | Description |
| 1 | Hose 1 (T-connect to faucet/boiler) | 10 | O-ring |
| 2 | Hose 2 (T-connect to faucet) | 11 | Rubber washer |
| 3 | Hose 3 (faucet to blue boiler inlet) | 12 | Metal washer |
| 4 | Hose 4 (faucet to red boiler outlet) | 13 | Fixing nut with screws |
| 5 | Power cord | 14 | Boiling water outlet (red) |
| 6 | Ambient water handle | 15 | Filtered water inlet (blue) |
| 7 | Instant hot water handle | 16 | LED Touch Panel |
| 8 | Numbered faucet stems | 17 | 2mm Allen wrench (for spout)* |
| 9 | T-connect | 18 | 2 5mm Allen wrench (for faucet handle)* |
Why Choose Xiamen Smart Water Technology?
✅ Proven ODM Expertise – We design and manufacture under-sink hot water systems for top global brands.
✅ Advanced R&D – 10% of annual sales reinvested into product innovation.
✅ Global Supply Capability – Two manufacturing bases in Xiamen with strong production capacity.
✅ Certified Quality – Products engineered for durability, safety, and international standards.
✅ Competitive Wholesale Pricing – Partner with us for direct factory pricing and long-term cooperation.
Care and Maintenance
If the instant hot water dispenser system is not going to be used for 2 days or more, switch the On/Off switch on
the boiler to the Off position to save power
1. Seasonal or Long-Term Shutdown
The instant hot water boiler, faucet, and tubing must not be exposed to freezing temperatures. If there is a
possibility of this, the system must be drained. To do this, do the following:
A. Turn off the cold water supply, switch the power switch on the boiler to the Off position, and unplug the power cord
B. Allow water in the boiler tank to cool for at least 1 hour. Detach hoses from boiler and remove boiler from under the sink. Invert boiler over sink and allow all water to drain out
C. When reinstalling boiler tank, follow the installation instructions
2. Descaling the System
We recommend descaling the system once every 6 months.
If your source water has TDS greater than 200 ppm, we recommend descaling every 2 to 3 months.
To descale do the following:
A. Pour 25 to 30g (1 to 2 tablespoons) of citric acid crystals (purchased separately) into a tall, heat-proof glass or container
B. Using the instant hot water faucet, dispense hot water into the container, filling it (A)
C. As soon as the container has been filled, submerge the spout of the faucet into the solution and release the hot water handle. The descaling solution will be drawn up and into the spout, then down into the boiler (B). If needed, maneuver the glass so that all the solution is drawn up and the glass is emptied
D. Allow the system to sit for 30 minutes
E. After 30 minutes, rotate the hot water handle open and flush the solution out of the boiler, dispensing approximately 2 to 3 liters
F. The system has now been descaled
Frequently Asked Questions (FAQ)
Q1: How long does it take for the system to heat up initially?
A: The initial heating time is around 8–9 minutes. Once heated, reheating takes only 2–3 minutes.
Q2: How often should I replace the water filter?
A: For optimal performance, we recommend replacing the filter every 6 months.
Q3: Can the Instant Hot Water Dispenser be used with hard water?
A: The system is designed for feedwater with TDS ≤200 ppm. For hard water areas, additional filtration or softening is recommended.
Q4: What is the hot water output capacity?
A: The dispenser delivers hot water at a flow rate of 1.5 L/min at ≥194 °F (90 °C).
Q5: Do you provide OEM/ODM services for international brands?
A: Yes, we specialize in ODM manufacturing for leading global brands and welcome wholesale distribution partners.
Looking to expand your product line with a reliable Instant Hot Water Dispenser System Under Sink?
👉 Partner with Xiamen Smart Water Technology Co., Ltd. – your trusted ODM manufacturer for global brands.
📩 Contact us today to discuss wholesale opportunities and custom ODM solutions.
