This report evaluates currently available centrally ducted variable speed heat pumps (VSHPs) to enhance understanding of their products, pricing, and performance specifications.

This report presents findings from research on the energy-saving potential of smart thermostats specifically designed for variable capacity heat pumps (VCHP).

This report assesses the current best practices for residential variable speed heat pump (VSHP) installations and identifies gaps in knowledge that could hinder market adoption.