．Central System Water Heater
With over 20 years of experience in distributing and manufacturing water heating systems in Hong Kong, German Pool brings in engineering technology from Germany and develops the renowned GPU Series. GPU water heaters conform to the Standards of International Electrotechnical Commission (IEC Standards) and comply with international safety standards and waterworks regulations.
．Certified with 2025 New Grade 1 Energy Efficiency Label
All-new German Pool Storage Water Heaters have undergone revolutionary optimization upgrade; with high efficiency heating system and injected polyurethane foam insulation layer, water stays hot for an extended period of time, reducing heat loss to a minimum and saving energy to the maximum. Certified with the more astringent EMSD 2025 New Grade 1 Energy Label, ensuring absolute energy-saving efficiency.
．Electronic Precise Temperature Control Real-time Water Temperature Display
German Pool’s new Central Electric Water Heater adopts an advanced electronic control system for intelligent and precise temperature regulation, ensuring the water is always kept at your preferred temperature. Easy-to-use turn knob and button together with extra-large LED display that shows the real-time water temperature inside the tank.
．Programmable Timer Tailored to Your Lifestyle
Equipped with innovative timer function, the new German Pool Central Electric Water Heater can easily be programmed with up to 3 time periods. It will automatically switch on and off at the scheduled times, flexibly matching your daily water usage needs and ensuring hot water is always ready when you need it.
．Excellent Performance with Incredible Durability
- Heavy Gauge Stainless Steel Inner Tank
The Japanese heavy gauge stainless steel inner tank ensures an operation free of rust, corrosion, deformity and leakage.
- High Thermal Efficiency
The prime quality stainless steel heating element with built-in thermal cut-out ensures maximum thermal efficiency and safety.
- Stable Temperature
The quality thermostat provides automatic temperature control to ensure constant water temperature and save energy. Temperature can be set to as high as 75°C.
- Constant Water Pressure
The operation is not affected by water pressure. Hot water can be provided as long as there is a supply of cold water.
．Water & Energy Saving Aerated Showerhead
Tailor-made for Rapid Fast Flow Electric Water Heaters, the new water-saving aerator showerhead slashes up to 70% of the water consumed by a traditional 6-gallon water heater. The innovative Air Jet Compression Technology increases water discharge to a rate that is comparable to a massaging jet (8L/min), resulting in a lasting showering experience without compromising showering comfort.
．25-Year Warranty
All GPU series water heaters come with a quality passport with 25-year(2) warranty for the inner tank and 1-year warranty for electrical parts.
．Economical & Energy Saving
- Pollution Free
The water heater produces no gas pollutants during the water heating process. Its operation is absolutely free of toxic substances and colour.
- Energy Saving
The injected polyurethane foam provides maximum insulation to the water tank. Also, GPU water heaters are compliant with the “Grade 1 Energy Efficient Label” (specified models only).
- Safe & Reliable
To prevent electricity leakage, the water heater comes with an earthing system and all electrical parts are insulated. The drip-proof and splash-proof design also ensure safety.
．5-Tier Fail-Safe Features
- Automatic Thermostatic Control
Temperature can be adjusted according to user’s preference. When the upper limit is reached, electricity would be cut off automatically; once the water temperature drops below the lower limit, power will be resumed.
- Thermal Circuit Breaker
If the water temperature reaches 90°C, power would be cut off automatically to ensure safety.
- Temperature Relief Valve
When the water temperature reaches 90°C, the temperature relief valve will open automatically to prevent the buildup of steam pressure caused by continuous heating in the inner tank.
- Pressure Relief Valve
Under abnormal circumstances where the inner tank is subject to excessive pressure (more than 1,000kPa (10 bar)), the pressure relief valve will open automatically to discharge water.
- Anti-back Syphon Device
Hot water is prevented from being syphoned back to the supply pipe during water shortage. This effectively prevents inner tank damages and dry-heating.
．Quality Accessories
- Premium Stainless Steel Inner Tank
The Japanese heavy gauge stainless steel inner tank ensures an operation free of rust, corrosion, deformity and leakage.
- Quality Heating Element
The prime quality stainless steel heating element with built-in thermal cut-out ensures maximum thermal efficiency and safety.
- Effective Insulation
Optimal heat insulation is achieved by injected polyurethane foam.
- Anti-Back Syphon Device
Hot water is prevented from being syphoned back to the supply pipe during the water storage period.
- Pressure and Temperature Relief Valve (P.T.V.)
Temperature relief at/over 90°C and pressure relief at/over 1,000kPa.
- 2-in-1 Thermostat & Thermal Circuit Breaker
Automatic temperature control is provided to save energy. The circuit breaker is set at a maximum temperature of 82°C. The 2-in-1 design makes the device compact and durable.
Specifications
Information
Sub Model: GPU-6.5HEE
Voltage: 220 V
Power: 3 kW
Power Supply: 1 Phase
Electric Current: 13.6A
Capacity: Water Storage: 6.5 gal / 25 L
Colour: White
Dimensions: (H) 680 (W) 315 (D) 315 mm
Packing Dimensions: (H) 405 (W) 795 (D) 390 mm
Gross Weight: 14.2 kg
Gross Weight With Packaging: 17.1 kg
Net Weight: Full Tank: 39.2 kg
Functions & Features
Rated Pressure: 1.0 MPa
Maximum Inlet Water Pressure: 0.6 MPa
Water Resistance: IPX4
Included Accessories: Water & Energy Saving Aerated Showerhead
Others
Warranty Term: 1-Year Warranty (Whole Unit)
Warranty Term (Additional): 25 Years on Inner Tank
Energy Efficiency Class: Grade 1 (2025)
Certification / Standard: IEC 60335-1、IEC60335-2-21
Remarks
* The inner tank warranty only applies to the replacement of inner tanks of storage water heaters. Additional service charges on testing, transportation and labour may apply.
Note:
(1) Free only applicable to water heaters with capacity of 15 gal. or below
(2) The inner tank warranty only applies to the replacement of inner tanks of storage water heaters. Additional service charges on testing, transportation and labour may apply. The 25-year inner tank warranty service is only applicable to products with a purchase date on or after 1 March 2026, as stated on the invoice or official receipt.
FAQ
Q: Is the German Pool GPU Central Storage Water Heater energy-efficient?
A: Yes, both GPU-6.5HEE models are awarded the 2025 Grade 1 Energy Label. They feature high-density polyurethane insulation and smart timer heating to minimize heat loss and maximize energy savings.
Q: How long is the warranty for the inner tank of the German Pool GPU Water Heater?
A: The German Pool GPU series uses a special Japanese stainless steel inner tank and offers a pioneering 25-year inner tank warranty in Hong Kong, equipped with a 5-fold safety device for absolute durability and safety.
Q: Can GPU-6.5HEE connect to multiple water outlets?
A: Yes. As central storage water heaters, they can connect to multiple outlets simultaneously—such as showers, washbasins, and kitchen sinks—providing a stable hot water supply regardless of varying water pressure environments.
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