Cooling comparisons
Central AC, ductless mini-splits, SEER2 tiers, and the refrigerant transition — honest side-by-sides for Waukesha County summers.
Ductless mini-split vs Central air conditioning
Ductless Mini-Split vs Central AC in Wisconsin
Got ducts? Central AC is hard to beat. No ducts, an addition, or a bonus room? Ductless wins. The honest decision tree for southeastern Wisconsin homes.
Read the comparisonSingle-zone (one outdoor per head) vs Multi-zone (one outdoor, many heads)
Single-Zone vs Multi-Zone Mini-Split Systems
One outdoor unit per room, or one feeding many heads? Multi-zone saves yard space but concentrates risk and compromises sizing. The honest ductless design guide.
Read the comparisonBase tier (~SEER2 13.4–14.3) vs Mid tier (SEER2 ~16–17) vs High tier (SEER2 18+)
SEER2 Tiers Compared: Base vs Mid vs High Efficiency
Base ~14, mid 16–17, high 18+ SEER2 — in Wisconsin's short cooling season, the efficiency premium pays back slower than national ads claim. The honest tier guide.
Read the comparisonRepair the AC vs Replace the AC
AC Repair vs Replace: When Each Wins
Capacitor? Fix it. Compressor on a 16-year-old R-410A unit? Different story. The age bands, the 50% rule, and the refrigerant wrinkle that changes AC math in 2026.
Read the comparisonR-410A (existing systems) vs R-454B / A2L (new systems)
R-410A vs R-454B: The Refrigerant Transition
New ACs and heat pumps now ship on A2L refrigerants like R-454B. What that means for your existing R-410A system, repair costs, and replacement timing in Wisconsin.
Read the comparisonTalk it through with a real tech.
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