CO₂ Heat Pump Hot Water System - Product Lineup
Panasonic’s hot water system lineup includes two models: 4kW and 6kW, with water tanks available in 215L, 275L, and 340L to suit your needs. Using eco-friendly CO₂ natural refrigerant and advanced heat pump technology, these systems deliver superior energy efficiency and achieve up to 70% savings on hot water costs compared to conventional systems.
Choose the Right Hot Water System
A hot water system heats and stores water for daily use-showers, bathing, dishwashing, and laundry. In Australia and New Zealand, hot water accounts for around 20-30%* of household energy use, making it one of the largest energy loads at home.
Choosing the right system can significantly improve energy efficiency and reduce running costs.
Panasonic recommends heat pump systems for their superior efficiency and lower environmental impact.
*Sources : AU-YourHome (Australian Government): Hot water ~23% NZ-ECA: Hot water ~30%
Why Heat Pumps Make Sense
1) Cut Hot Water Costs by Up to 70%
Switch to a CO2 Heat pump hot water system and enjoy up to 6.8 times higher efficiency than traditional electric or gas systems. That means you can save energy bills while reducing carbon emissions for a sustainable future.
Compared with electricity storage water heaters, heat pumps can reduce running costs by up to 70%. Enjoy superior energy efficiency, and long-term savings!
Assumptions
・Sustainability Victoria: Calculate Water Heating Running Costs
(Based on standard assumptions: 4-person household, 150 L/day)
・Actual energy consumption will vary depending on inlet water temperature, usage patterns, system configuration, household circumstances, and operating conditions
・Total energy costs may vary by State depending upon tariff rates and charges that are applicable in those States.
2) All-in-One Type vs Split Type
Hot water systems are available in two configurations: all-in-one and split type. An all-in-one unit combines a heat pump (outdoor unit) and storage tank into one integrated system, ideal for homes with limited space and simple installation needs. A split system separates the heat pump (outdoor unit) and tank, offering greater flexibility and performance.
Panasonic recommends the split type for its superior advantages:
• Handles a wider range of outdoor temperatures
• Higher energy efficiency
• Faster heating and "Provides greater volume of hot water to use"
How It Works
Heat pump technology works by extracting heat from the surrounding air and transferring it to water in a storage tank. Unlike traditional electric heaters that rely solely on electrical resistance, heat pumps use a small amount of electricity to move heat rather than generate it, making them significantly more efficient. Panasonic’s CO₂ heat pump hot water system achieves a COP of up to 6.1, delivering exceptional energy efficiency. This process ensures a consistent hot water supply even in colder climates, while greatly reducing energy consumption and running costs.
Why Choose Panasonic ?
Panasonic is more than a heat pump manufacturer—it’s a name trusted worldwide for comfort and reliability. Since 1964, we’ve been pioneering hot water solutions, combining decades of expertise with cutting-edge technology.
Our systems deliver high energy efficiency, dependable heating performance, and smart control through the Comfort Cloud App. Chosen by homeowners across Japan, Europe, Oceania, and beyond, Panasonic stands for innovation, sustainability, and peace of mind for years to come.
Your Heat Pump Purchase Journey
Getting your new heat pump is simple and straightforward. From your first consultation to final installation, we aim to make the process as smooth as possible.
Typical timeline:The entire process usually takes about one week from your initial inquiry.
Please note:The timeline may vary depending on your availability and site conditions.
Please submit your quotation request via the link below,
and we will contact you through a local installer in your area.
FAQ
Switch to a Panasonic CO₂ heat pump hot water system and you can enjoy up to 6.8× higher efficiency than electric or gas systems—saving up to 70% on energy bills while reducing carbon emissions.
Yes. Modern heat pumps are designed to operate efficiently in a wide range of climates, from warm coastal areas to cooler regions such as Canberra, Tasmania, or the South Island of New Zealand. Many models include low-ambient technology that maintains performance even during winter.
Most heat pumps operate at 40–50 dB, similar to a modern refrigerator or a quiet conversation. Panasonic’s CO₂ heat pump achieves quiet operation with a noise level of just 37 dB. Proper placement—such as in an open outdoor area with good airflow—helps minimize perceived noise.
Most heat pump hot water systems last 10–15 years, depending on climate, installation quality, and maintenance.
As a general guideline:
1–2 people: 160–200 L
3–4 people: 270–315 L
5+ people: 315 L or more
Your installer can recommend the ideal size based on usage patterns, number of bathrooms, and peak-time hot water demand.