Official explainers with plain-language context, a short viewing checklist and a direct route into the relevant CoolCompare tool.
Browse the video library ↓These videos explain concepts, not whether a particular system fits your home. Use the viewing notes, then verify exact equipment and project scope.
A short introduction to using one efficient system for cooling and heating. Treat it as orientation; exact capacity and cold-weather performance still depend on the selected model and the home.
A homeowner-level overview of heat-pump replacement. Use the video to understand the route, then compare load assumptions, matched components, controls and backup heat in writing.
DOE's Energy 101 explainer shows the ground-loop concept behind geothermal systems. It does not establish feasibility, drilling conditions, installed price or local permitting for a particular property.
Each card includes the decision context and the points worth recording. The source link provides the publisher's page and any available supporting material.