I have made a Propagating Box for my Pelargonium cuttings.
The bottom heat is provided by 2 x 11 Watt bulbs.
I need to control the heat at 21 degrees 'C' so I plan to use a rod type Thermostat that will fit just below the tray holding the cuttings.
It is a ' BACKER BACKERSAFE STANDARD THERMOSTAT ROD STAT 7" ' which I believe is for controlling the heat in domestic hot water boilers.
Will this be OK?