Thermal calculator

Configuration

Suite

Select Product Residential Residential ThermalHeart+ Metro 44 ThermalHeart+ Metro 56 ThermalHeart+ Architectural 44 ThermalHeart+ Architectural 56 ThermalHeart+

Glazing

Select Glazing Clear Double Glazing AGP Solux-E Double Glazing AGP Solux-Ultra Double Glazing Clear Triple Glazing AGP Solux-E Triple Glazing AGP Solux-Ultra Triple Glazing

Height

mm

Width

mm

Reset

U _window (W/m2K) Value: 

R _window (m2K/W) Value: 

Results generated from the APL Thermal Calculator are indicative only and should not be used as a substitute for a full WEERS report. Results are accurately calculated using the WEERS (Window Energy Efficiency Rating System) method. This tool has limited options compared to the number of possible window and door configurations; there are also wind zone requirements and considerations which need to be addressed. If you need R-Values for your specific build, please contact your local Altherm, First or Vantage manufacturer to generate a comprehensive WEERS report and tailored quote.