volumetric heat capacity of water vs air — the reason liquid operates in a different cooling regime
~3,500×derived
| Value kind | derived — Derived values are guide calculations; their result is only as fixed as the stated inputs, scope, and method. |
|---|---|
| As of | 2025 |
| Source | Thermodynamic reference; ASHRAE TC 9.9 · water about 4.18 MJ/(m³·K) vs air about 1.20 kJ/(m³·K) at roughly 20 °C, giving about 3,480x |
| Review | checking…review by 2028-01-01 · slow cadence |
| Recorded changes | last 2026-07-21 · 2 revisions tracked |
| Claim id | volumetric-heat-capacity-of-water-vs-air-the |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.