In 2026, DIY cold-climate mini splits offer solid efficiency with models...

https://zoom-wiki.win/index.php/Pioneer_Quantum_Ultra_23_SEER2:_Why_People_Still_Pick_Hyper_Heat_Models

In 2026, DIY cold-climate mini splits offer solid efficiency with models hitting up to 24 SEER2 and reliable heating down to -22°F. They support line sets between 8 and 75 feet, giving flexible placement