| Year | 2021 |
| Date | 15-Jan |
| Volume | 226 |
| Issue | 4,656 |
| Page | 140 |
| Category | Workshop |
| Part | |
| Title | Are You Using the Right Firebrick? |
| Author | R.Finch |
| Notes | Helps you to find the firebrick of your dreams. Introduction, the requirements, a standard red clay 'house brick', a thermal storage brick (photo courtesy of Barry Gray, Gillingham, thermal storage heaters, structural firebricks, insulating firebricks, comparison of the three types, a 'non-firebrick', conclusion |