NRCan offers air source heat pump toolkit

Natural Resources Canada (NRCan) has introduced a guide to air source heat pump (ASHP) sizing and selection.

The toolkit is made for mechanical system designers and renovation contractors, and covers guidance on sizing and selection in Canadian climates for new and retrofit residential applications. It includes three sections:

  1. The ASHP Sizing and Selection Guide and ASHP Key Specifications Summary Worksheet;
  2. An interactive ASHP Sizing and Selection Tool to help users apply the processes described in the guide; and
  3. An addendum of case studies showing how to select centrally ducted or ductless mini-split ASHPs for different installation applications.

To download the toolkit visit: