A volume multiplier alone does not select a unit.
Design inputs
- Product, starting condition
- Target temperature
- Body surface and K data
- Door, defrost, operating conditions
Separate the figures. A design calculation and rated unit capacity are different; request the test conditions in the quote.
Because the capacity you choose turns straight into fuel, a cost per trip calculation rests on this coefficient too.
Verify in service. Compare trip and product measurements with calculation assumptions.
Do not treat W/m³ as universal without a validated design basis.
