Proper furnace replacement involves matching blower capability to duct design, preventing noise, drafts

https://troyjygy741.bearsfanteamshop.com/canadian-heating-and-air-conditioning-s-guide-to-two-stage-vs-modulating-furnaces-1

Proper furnace alternative includes matching blower means to duct layout, combating noise, drafts, and diminished performance from airflow mismatches.