| Temperature of water (Initial) | Temperature of water (after 3 hours) | Temperature of vial (Initial) | Temperature of vial (after 3 hours) | Total energy transferred to Vial and Water (kJ) | |
|---|---|---|---|---|---|
| Concrete | 14.5 | 20.4 | 14.3 | 20.1 | 1.47 |
| Brick | 12.9 | 21.2 | 12.6 | 21.5 | 2.09 |
| Wood | 12.5 | 24.7 | 12.6 | 24.6 | 3.04 |