FieldengThermal & HVAC
COP / EER
COP = useful thermal power / electrical input. EER = (Btu/h of cooling) / (W electrical) = COP × 3.412.
Thermal & HVACElectrical & Power
COP = useful thermal power / electrical input. EER = (Btu/h of cooling) / (W electrical) = COP × 3.412.
App id: THERM-23. Reference version 1.0.
How to fill it
Fill the inputs. The tool shows the outputs.
On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.
Formula
COP = Q / P_e; EER = Q_Btu/h / P_WInputs
| Name | Unit |
|---|---|
| Useful thermal capacity | kW |
| Electrical input | kW |
Outputs
| Name | Unit |
|---|---|
| COP (hero result) | 1 |
| EER | 1 |
Diagnose
Observations are context. They do not pass or fail a structure. See Diagnose.
| When | Observation | Severity |
|---|---|---|
COP < 1 | COP below 1 | caution |
Assumptions
- Both inputs are power. 24,000 Btu/h at 2000 W is EER 12.
Provenance
- EER uses IT Btu. Not SEER, IEER, or HSPF.