Mini Split for a 4-Bedroom House
A 4-bedroom house needs 3-5 zones in mini split terms; the verified complete systems at this scale are few, and dealer-channel builds dominate - which is exactly why our table stays short and honest. Published guides put installed whole-house projects at $10,000-$15,000+; equipment from our verified dataset is below. Our dataset holds 2 verified system(s) here, 2 with first-hand prices from $4,538 to $5,970; the cheapest is the MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18).
Computed from our dataset
- 2 system(s) from our verified dataset appear on this page.
- Price range: $4,538 to $5,970 (verified 2026-11-04).
- Cheapest: MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18) at $4,538 (HVACDirect).
- Highest SEER2: MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18) at 23 SEER2.
- Best heating rating: MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18), rated to -13°F.
| System | Zones | BTU | Coverage | SEER2 | Heats to | Install | Price | |
|---|---|---|---|---|---|---|---|---|
| MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18) DIY-MULTI5-36HP230D | 3 | 36,000 | Per-zone: 400 / 400 / 1,000 sq ft | 23 | -13°F | Pro / flare | $4,538 at HVACDirect | Check price at HVACDirect |
| MRCOOL DIY 5th Gen 5-Zone 48k (6+9+9+9+12) DIY-MULTI6-48HP-230 | 5 | 48,000 | Per-zone: 250-600 sq ft | 21.8 | — | Pro / flare | $5,970 at HVACDirect | Check price at HVACDirect |
Buying notes
- Bedroom count is a proxy for zone count, not a size: the living space's load usually sets the condenser size.
- Two condensers (a multi-zone plus a single-zone) is a legitimate whole-house design with no single point of failure.