Ridgerunner
Garden Master
- Joined
- Mar 20, 2009
- Messages
- 8,229
- Reaction score
- 10,062
- Points
- 397
- Location
- Southeast Louisiana Zone 9A
Don't know if true but was once told top of fridge same as heat mat
Warm air rises. You often have heat in a kitchen from cooking. Anything high in the kitchen is probably warmer than a spot down low. The refrigerator itself generates heat but that probably doesn't help much as the motor is usually down low.
I started sweet potato slips on top of a high bookcase in the office as it was pretty warm up high in there and sweet potatoes like it warm. Not much room for a grow light up there though.