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.

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Central System Water Heater

With over 20 years of experience in distributing and manufacturing water heating systems in Hong Kong, German Pool brings in the 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.

Central System Water Heater

With over 20 years of experience in distributing and manufacturing water heating systems in Hong Kong, German Pool brings in the 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.

Grade 1 Energy Efficiency Label

German Pool GPU Series Central Type Electric Water Heaters are recognized by the Electrical and Mechanical Services Department to reach Grade 1 in the Energy Efficiency Labeling Scheme#. Our water heaters consume less to perform better. They put the money back in your pocket; the upgraded power efficacy also contributes to the collective effort to save our planet.

Only applicable to water heaters with capacity of 6.5 and 10 gal.

Applicable to water heaters with capacity of 6.5 and 10 gal. only

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 85°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.

*Free only applicable to water heaters with capacity of 15 gal. or below

Unique Aerator Switch

Air is drawn through the air hole to increase water pressure, bringing you the most comfortable showering experience with reduced water consumption.

Air Jet Compression Technology

The innovative Air Jet Compression Technology delivers showering comfort comparable to a massaging jet at 8L/min.

Adjustable Showerhead Holder

The flexible holder can be adjusted in different angles, allowing easy placement.

10-Year Warranty

All GPU series water heaters come with a quality passport with 10-year warranty for the inner tank and 1-year warranty for electrical parts.

* 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.

Economical & Energy Saving

Pollution Free

The GPU 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 “1st Class 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.

# Applicable to 6.5- or 10-gallon GPU models only

User-Friendly Features

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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 90C 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.

5-Tier Fail-Safe Features

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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.

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Thermal Circuit Breaker

If the water temperature reaches 82°C, power would be cut off automatically to ensure safety.

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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.

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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.

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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.

View Specification

To inquire about GPU and pricing information. CLICK HERE

More Details

FAQ

There is leakage from my Storage Water Heater (Central System). How to fix it?
Check the location of leakage. If water is dripping from Pressure & Temperature Relief Valve (PTV): 1. It's normal as PTV is releasing pressure and temperature. 2. If water dripping from PTV is more frequent than usual, it is suggested to set temperature at a lower level (between 2 & 3). If there is no improvement, contact us for an inspection. 3. If water dripping from PTV is in large amount and at faster speed, inspection is needed as the water supply pressure and boiling water pressure is higher than normal. 4. If there is water dripping from PTV when the appliance is off, inspection is needed as the incoming water pressure is higher than normal. There is leakage at the bottom of heater: 1. If water dripping from the inlet, outlet and the bottom edge, inspection should be arranged for repair. 2. If there is water dripping from the joints of inlet & outlet, customer should contact a professional for an inspection and repairs. There is leaking from shower head and tap: 1. Customer should contact a professional for a inspection and repairs.
There is no hot water supply from the shower head but the tap of wash-basin does, or vise versa. How
If the indicator light is on (meaning heater is under normal operation), check whether the tap or pipe is blocked or damaged. Customer should contact a professional for an inspection and repairs.
Why is my Storage Water Heater – Central (GPU series) not producing any cold water but only hot water?
The Storage Water Heater is not out of order. Cold water does not go through the inside of the heater. There is no cold water mostly because the tap is broken or the hose is clogged. Contact the Repairs & Customer Service Centre for inspection and repair.
There is no hot water supply. What should I do?
Check power supply: Restart the power if there is a short circuit of electric box. f the Power Switch (Cooker Switch) doesn't light, customer should contact a professional for an inspection and repairs. If the Power Switch (Cooker Switch) lights but the indicator light doesn't, inspection should be arranged for repairs. Under normal operation, hot water supply is only available after the indicator light goes out.
When should I install the Pressure Reducing Valve?
The installation of Pressure Reducing Valve is suggested when water pressure is higher than 72.5 pounds.
How to make my water heater last longer?
Avoid boiling water without interval. Adjust the Thermostat to 2 1/2. To stabilize water pressure, pressure regulator can be installed if the water pressure is higher than normal.
Why is the Storage Water Heater – Central (GPU series) noisy?
The water heater is noisy due to gasification. Release hot water inside the heater to force out the air. Procedures: 1. Turn off the power supply 2. Release the hot water 3. Turn off the tap after half a minute/1 minute 4. Repeat the process thrice or more
My water heater works perfectly during summer time. However, when winter comes or whenever the tempe
We normally want our running water to be hotter during cold weather. Higher water temperature implies more electric power is needed by the water heater to heat up the water.Incoming water temperature in winter is 15°C lower than summer
Why is there water dripping from the red device on the side of my GPU Water Heater?
This red device, known as Pressure & Temperature Relief Valve (PTV), is a device used to release heat and pressure contained within the water tank. When steam passes through the PTV, it'll condense and become water drops as the temperature there is lower.
Why the water comes out cold and hot from my Storage Water Heater (Central System)?
1. Abnormal pressure of incoming water. 2. Other water outlet(s) in the house is(are) open and competing for water.