Quantity   Component name
16 × TMP36 Temperature sensor
16 × 5V Relay must at least handle 120VAC 15W heating element
1 × Arduino Mega 2560
1 × Acer Iconia A500 tablet any tablet with bluetooth will do, larger screen is better
1 × RN42 Bluetooth module
8 × Standard double electrical outlets 8 double outlets = 16 heating outputs