How is the outdoor design temperature (ODT) set and can I change it?
The outdoor design temperature (ODT) for your project will be automatically set using the 99th percentile temperature for the relevant project location from CIBSE guide A. Using the 99th percentile temperature means the temperature will only fall below the ODT for 1% of the year. You may choose to use the 99.6th percentile in which case no additional uplift is needed for intermittent heating or exposed locations (see MIS 3005-d for details. Using the project's location, Heatpunk will also automatically remove 0.3°C from the ODT for every 50 m above sea level.
To change the ODT used for your project:
Note: An additional 0.3°C will need to be removed for every 50 m above sea level, with altitude given in the input section of the technical report & customer proposal.
