What Is ThermalHeart+®?
ThermalHeart+® is advanced thermal technology for aluminium windows and doors that almost doubles the insulation performance compared to standard aluminium joinery. By integrating a high-performance polyamide barrier within the frame, ThermalHeart+® separates warm and cold zones, helping to keep your home warmer in winter, cooler in summer, and more comfortable year-round.
Next-Generation Energy Efficiency
At Phoenix, we understand that up to half of your home’s heat can be lost through windows and doors. That’s why we offer the ThermalHeart+® range—an industry-leading innovation designed and made right here in New Zealand, specifically for our unique climate and building standards
Key Features
Up to 50% Better Insulation
ThermalHeart+® can reduce heat loss through windows and doors by 35–50% compared to standard aluminium joinery
Condensation Control
Improved insulation and frame design help minimise condensation, supporting a healthier indoor environment and reducing the risk of mould
Year-Round Comfort
Keeps your home warmer in winter and cooler in summer, reducing reliance on heating and cooling systems
Code-Meeting Performance
Designed to meet and exceed the latest H1 Building Code requirements for energy efficiency in New Zealand homes and buildings
Modern, Versatile Design
Clean lines and a consistent aesthetic across all window and door types, suitable for both residential and architectural projects
ThermalHeart+®
Across the Phoenix Range
ThermalHeart+® is available in all major Phoenix joinery series, so you can enjoy advanced thermal performance no matter your project:
Residential Series
Clean, contemporary lines and smooth surfaces define our Residential Series. With generously sized profiles and a complete portfolio of window and door types, this range is expertly designed to cater to the majority of residential building projects.
Metro SEries
The Metro Series is all about bold, modern design and robust performance. Perfect for both residential and architectural applications, these heavy-duty profiles offer clean, flat surfaces and large-format options engineered for strength and style.
APL ARCHITECTURAL SERIES
For projects demanding scale, versatility, and a truly architectural finish, the APL Architectural Series is meticulously crafted for high-end homes and apartments. This range delivers assured strength, expansive formats, and a crisp, square-edged aesthetic.
Commercial Platforms
Phoenix’s joinery series are engineered not only for residential and architectural builds but also for a wide range of commercial platforms. Our solutions are trusted by developers and builders for offices, retail spaces, apartments, and mixed-use developments throughout Auckland and beyond.
How Does It Work?
Thermal Barrier
The polyamide strip in the frame breaks the path of heat flow, nearly doubling the thermal performance compared to standard aluminium.
High-Performance Glas
Argon gas and Low-E coatings further insulate your home, while the thermal spacer reduces temperature transfer at the glass edge.
Innovative Installation
Centrafix™ aligns insulation layers for even greater performance, making your home warmer, drier, and healthier.
