I bought a small electric prop last week and I don't think it works 
I set it up yesterday and switched it on, no seeds in yet and 2 hours later it was not warm. Should it be warm enough to feel that it is on IYKWIM?
It is a Stewart seed tray sized one. Help!

I set it up yesterday and switched it on, no seeds in yet and 2 hours later it was not warm. Should it be warm enough to feel that it is on IYKWIM?
It is a Stewart seed tray sized one. Help!
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