Sounds like you've got a single stage/speed heat pump, the good ones nowadays are variable speed, with pretty significant turndown ratios, so oversizing is less

Sounds like you've got a single stage/speed heat pump, the good ones nowadays are variable speed, with pretty significant turndown ratios, so oversizing is less of an issue. I've been idly hacking on this site for comparing heatpump stats, if you're curious to learn more: https://www.heatpushers.com/ https://www.heatpushers.com/