Water heating is a significant energy expense for most households, accounting for up to 20% of a home’s energy use. Therefore, it makes sense to invest in an energy-efficient water heater that can help save on energy bills and reduce greenhouse gas emissions. But what is the most energy efficient water heater available on the market today?
What is Energy Efficiency
Energy efficiency refers to the use of less energy to perform the same task. It is the measure of how much energy is used to produce a certain output. In the case of installing water heaters, energy efficiency is measured by how much energy is used to heat water. The more efficient a water heater is, the less energy it uses to heat the same amount of water.
Energy efficiency is important because it helps reduce energy costs and carbon emissions. When appliances, such as water heaters, are more energy efficient, they use less electricity, which results in lower energy costs for homeowners. Additionally, using less electricity helps reduce carbon emissions, which is important for a low-carbon economy.
Residential energy efficiency is important for homeowners because it can result in significant savings on energy costs. By using more energy-efficient appliances, homeowners can reduce their energy bills and save money over time. Additionally, using energy-efficient appliances can help reduce the strain on the electrical grid, which can help prevent blackouts and brownouts.
To determine the energy efficiency of a water heater, manufacturers use a rating system called the Uniform Energy Factor (UEF). The UEF measures how efficiently a water heater uses energy to heat water. The higher the UEF, the more energy-efficient the water heater is.
What is the Most Energy Efficient Water Heater Malaysia?
When it comes to energy efficiency, the Midea 3.8 kW Water Heater stands out as one of the most energy-efficient water heaters in Malaysia. This water heater does not require a pump, making it more energy-efficient and cost-effective. It has a high energy efficiency rating, which means that it consumes less energy than other water heaters, resulting in lower electricity bills.
Another energy-efficient water heater is the Joven 880 Series Pump. It has a built-in pump that provides a constant flow of hot water, which means less energy is required to heat the water. It has a high energy efficiency rating, which means that it consumes less energy than other water heaters, resulting in lower electricity bills.
The Panasonic DH-3LS1MW is another energy-efficient water heater in Malaysia. It has a user-friendly function that allows users to adjust the temperature easily. It also has a high energy efficiency rating, which means that it consumes less energy than other water heaters, resulting in lower electricity bills.
The Toshiba TWH-38EXPMY (T) Instant Water Heater DC PUMP is also an energy-efficient water heater. It has a powerful 3.8kW, which ensures a constant and comforting stream of hot water. It also has a high energy efficiency rating, which means that it consumes less energy than other water heaters, resulting in lower electricity bills.
The Rubine RWH-C500N-MASB Cubo Series Water Heater is another energy-efficient water heater in Malaysia. It has a built-in pump that provides a constant flow of hot water, which means less energy is required to heat the water. It also has a high energy efficiency rating, which means that it consumes less energy than other water heaters, resulting in lower electricity bills.
Panasonic Digital Rain Shower Water Heater (DC Pump) | DH-3NDP1MS
The Panasonic Digital Rain Shower Water Heater (DC Pump) | DH-3NDP1MS is a highly efficient water heater that is designed to provide homeowners with a comfortable and enjoyable shower experience. This model is equipped with a DC pump that ensures low noise operation, making it ideal for use in homes where noise is a concern.
Pros:
- Large LCD display that provides clear and easy-to-read information
- DC pump that ensures low noise operation
- One-push stop system that makes it easy to stop the water flow
- Digital temperature control that allows users to set the desired temperature easily
- Eco and saving mode that helps users save on energy costs
Cons:
- Higher upfront cost compared to traditional water heaters
- Requires professional installation, which can add to the overall cost
- May not be suitable for homes with low water pressure
Specifications:
- Power consumption: 3.6kW
- Power supply: 240 V, 50Hz
- Water pressure: Max, 380kPa, Min, 4.9kPa
- Jet pump: DC pump
- Power selection: Digital temperature control with LCD
- Water stop system: One-push stop system
- Body color: Skin silver
- Body dimension (H x W x D): 380x 200 x 89min
- Design: Oval
Panasonic U Series (Jet Pump) Water Heater DH-3UP1MS
The Panasonic U Series (Jet Pump) Water Heater DH-3UP1MS is a highly efficient water heater that uses a pump to deliver water at a higher pressure than traditional gravity-fed systems. This results in a more powerful and consistent flow of water, even in multi-story buildings.
Pros:
- Energy efficient: The DH-3UP1MS is an energy-efficient water heater that is designed to save you money on your electricity bills. It has a high Energy Efficiency Rating (EER) of 5 stars, which is the highest rating possible.
- Water-resistant and splash-proof: The water-resistant and splash-proof case cover is compliant with IEC60529 (IP2X) for ultimate protection. It is designed with water resistance on the joint between the front plate and back plate, to prevent fire and electric shock.
- Prevents overheating and fire: The DH-3UP1MS has a flow sensor that shuts off the heater if water flow is too low, preventing overheating and fire.
Cons:
- High upfront cost: The DH-3UP1MS is a premium water heater that comes with a higher price tag than some other models on the market.
- Requires professional installation: Due to its advanced features, the DH-3UP1MS requires professional installation, which can add to the overall cost of the unit.
Specifications:
- Capacity : 3.6 kW
- Water Pressure: Max 380kPa
- Power Supply: AC 240 V
- Weight: 4.5kg
- Dimensions (H x W x D): 420 x 185 x 85 mm
ELBA Instant Water Heater ACQUA Series EWH-K3420(GB)
The ELBA Instant Water Heater ACQUA Series EWH-K3420(GB) is a popular choice for those looking for an energy-efficient water heater. Here are some pros, cons, and specifications of this model:
Pros:
- Energy-efficient: With a power rating of 3.8kW, this water heater is designed to be energy-efficient, helping to save on electricity bills.
- Quick heating: This model heats water quickly, allowing users to enjoy hot water in no time.
- Large capacity: The 35L capacity tank ensures that there is enough hot water for multiple users.
- Sleek design: The Galaxy Black color and sleek design make this water heater a stylish addition to any bathroom.
Cons:
- No pump: This model does not come with a pump, which may affect the water pressure in some homes.
- Limited warranty: The warranty for this model is limited to one year, which may not be sufficient for some users.
Specifications:
- Power rating: 3.8kW
- Capacity: 35L
- Voltage: 240 V
- Frequency: 50Hz/60Hz
- Minimum working pressure: 0.2bar (20kPa / 2.9psi)
- Maximum working pressure: 6 bar (0.6MPa / 87 psi)
- Minimum flow rate: 2Litre/min
Toshiba DC Pump + Rain Shower Instant Water Heater / Home Shower DSK38ES3MB-RS
The Toshiba DC Pump + Rain Shower Instant Water Heater / Home Shower DSK38ES3MB-RS is a top-of-the-line water heater that boasts a range of features that make it one of the most energy-efficient water heaters available. Here are some pros and cons of this model:
Pros:
- The DC pump greatly increases water pressure for a more powerful and enjoyable shower.
- The Whirl Water Flow technology prevents accidental scalding by improving heating efficiency and stabilizing the temperature.
- The heating element, made of red copper material, inhibits E.coli and Staphylococcus aureus to 99.99%, promoting water heating more evenly and efficiently.
- The full-body sprays relieve muscle tension to rejuvenate and invigorate your body.
- The instant electric water heater with a pump provides cooling relief on hot summer days or after exercise.
- The spiral design, with 20% longer lifespan, expands the contacting area to water, promoting water heating more evenly and efficiently.
Cons:
- This model is more expensive than some other water heaters on the market.
- The installation process may be more complicated than other models.
Specifications:
- Type: Instant Electric Water Heater with Pump
- Model: DSK38ES3MB-RS
- Power Consumption: 3.8 kW
- Voltage: 240 V AC
- Water Pressure: 10-380 kPa
- Water Connection: 15mm (½”) BSP
- Dimension (W x H x D): 360 x 240 x 96mm
- Weight: 3.5kg
Haier Water Heater Shower with DC Inverter Pump EI36MP1
The Haier Water Heater Shower with DC Inverter Pump EI36MP1 is a popular water heater model that boasts energy efficiency and durability. This model is equipped with a DC inverter pump that reduces energy consumption by up to 30% compared to traditional water heaters.
Pros:
- Energy efficient with DC inverter pump
- Durable and long-lasting
- Shock-proof and water splash-proof
- Instant hot water function
- Comes with a 5-year warranty for the tank and 2-year warranty for the DC inverter pump
Cons:
- Higher upfront cost compared to traditional water heaters
- Requires professional installation
Specifications:
- Model: EI36MP1
- Rated Voltage: 240V
- Rated Frequency: 50Hz
- Rated Power: 3600W
- Water Connection: G ½” connection
- ELCB: Yes
- Water Splash Proof: IP25
- Max Outlet Water Temperature: 55℃
- Jet Pump: DC Pump
