Heat Loss
External Winter Temperature
Based on your project Address, this defines the Temperature used for heat loss calculations.
Ensure to click Refresh after inputting/editing the address.
You can override this Temperature if you don't want to use the auto filled number based on Address's local weather station.
Percentile
Select a severity percentile (e.g., 99%, 99.6%, or 100%).
Ensure you click Refresh to apply changes after inputting/editing the percentile.
Higher percentiles represent more extreme and unlikely conditions.
Ground Temperature
The Ground Temperature is used to calculate the heat loss through the bottom floor.
Spare Capacity
Add a percentage to allow extra heat loss , providing a buffer for unforeseen conditions (e.g., 10% additional capacity).
Adjacent Winter Temperature
Set this if there’s a neighboring, non-external space.
When you select a wall to be Party Wall in the design, it will use this temperature rather than the External Temperature.
Heat Gain
External Summer Temperature
Based on your project Address, this defines the Temperature used for heat gain calculations.
Ensure to click Refresh after inputting/editing the address.
You can override this Temperature if you don't want to use the auto filled number based on Address's local weather station.
Percentile
Select a severity percentile (e.g., 99%, 99.6%, or 100%).
Ensure you click Refresh to apply changes after inputting/editing the percentile.
Higher percentiles represent more extreme and unlikely conditions.
Base Temperature
This sets the baseline for calculating heating and cooling Degree Days, which affects the energy calculations.
The higher the base temperature, the higher the heating energy usage, and lower the cooling energy usage. And vice versa for a lower base temperature.
Spare Capacity
Add a percentage to allow extra heat loss , providing a buffer for unforeseen conditions (e.g., 10% additional capacity).
Adjacent Summer Temperature
Set this if there’s a neighboring, non-external space.
When you select a wall to be Party Wall in the design, it will use this temperature rather than the External Temperature.
Common
Thermal Bridging Coefficient
Defines the heat transfer rate through construction parts prone to thermal bridging, like studs.
This number will increase heat loss and heat gain through Materials as a percentage.
Project Address
Sets the project’s location, which is used to determine local Temperatures and other environmental settings, such as the Degree Days, based on our API to local weather stations.
Rooms Below Transparency
Set the Transparency level for rooms below the active level, making it easier to view layouts during design.