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Goodman
1.5 Ton Heat Pump
Goodman Up to 15.2 SEER2 Single-Stage, Classic, R-32 | GLZS4BA1810
$1,716.99
A 1.5 ton heat pump delivers 18,000 BTU of heating and cooling — the smallest standard size, and a tidy way to condition a condo, apartment, or addition of roughly 600 to 900 square feet with a single electric system. In a space this small, sizing it right matters more than buying big.
11 products
Goodman
Goodman Up to 15.2 SEER2 Single-Stage, Classic, R-32 | GLZS4BA1810
Goodman
Goodman Up to 15.2 SEER2 Single-Stage, Multi-Family, R-32 | GLZS4MA1810
Goodman
Goodman Up to 16 SEER2 Single-Stage, R-32 | GLZS5BA1810
Goodman
Goodman Up to 19 SEER2 Variable-Speed Side-Discharge, R-32 | GZV6SA1810
Ruud
Ruud 14.3 SEER2 Two-Stage, R-454B | RP14AY18AJ1NA
Ruud
Ruud 15.2 SEER2 Two-Stage, R-454B | RP15AY18AJ2NA
Trane
Trane 14 Series Single-Stage, R-454B | 5TWR4018A1000
Trane
Trane 15 Series Single-Stage, R-454B | 5TWR5018A1000
Trane
Trane 15 Series Single-Stage, WeatherGuard Top, R-454B | 5TWX5018A1000
Trane
Trane 16 Series Single-Stage, R-454B | 5TWR6018A1000
Trane
Trane 16 Series Single-Stage, WeatherGuard Top, R-454B | 5TWX6018A1000
The appeal of a heat pump this size is that it replaces both a small AC and a heater with one efficient unit. But small spaces punish oversizing: a too-large heat pump satisfies the thermostat in short bursts, leaving humidity in summer and uneven temperatures in winter. For a single room or a ductless application, a mini-split heat pump often fits better than a ducted split.
Conditioning a small space? Tell us about it and we'll confirm 1.5 tons is right →
For most condos, apartments, and additions up to about 900 sq ft, yes. It both heats and cools, so it can be the only system the space needs in mild-to-moderate climates.
For a single room, addition, or a home without ducts, a ductless mini-split heat pump is often the better fit. If the space is already on ductwork, a 1.5 ton ducted split makes sense.
In mild climates, usually not. In colder regions, a small electric heat strip provides auxiliary heat for the few days when temperatures drop below the heat pump's efficient range.
18,000 BTU per hour of cooling capacity (1.5 × 12,000), with comparable heating output that varies with outdoor temperature.
Yes, if it's sized correctly. An oversized unit cools too quickly to remove humidity, which is exactly why right-sizing matters most in small spaces.