Heat Pump Room Sizing Calculator
Whole-house calculators give you one number for the whole building, but installers need one per room. Add each room with its size and insulation level to get a heating load and recommended unit size for every room. Nothing uploaded.
BTU/hr ?
kW heating load
Mini-split sizing ?
Per-room breakdown
Results
| Room | BTU/hr | kW | Recommended unit |
|---|---|---|---|
| Total | - | - | - |
Notes
Estimates are based on simple area, insulation, ceiling height, and window-area inputs. Actual heat pump sizing should also account for climate zone, air leakage, and manual J-style load calculations for a final installation decision.