after putting a nice oil filled radiator in my growroom i set it to level 1 so it stays warm and went out for a bit to let it warm up but instead i had forgot and now ive got 2 shrivelled up plants that were almost a just over a foot tall.....im happy i got more plants because i now only have 10 left being as the other plants got the brunt of the heat off the radiator but now watered them and seeing if they grow back but dont think there worth anything now...be warned oil filled radiators take time to warm up they also can be set wrong as in my case being as the switch is probably faulty and it was on high for about 3 hours............