Do not let the room temperature get over 35 C (95 F) as this hurts growth. Optimal temperature is 27-30 C (80-86 F) if you have strong light with no CO2 enrichment. Less than 21 C (70 F) is too cold for good growth. Low temperatures at night are OK down to about 60 degrees outdoors, then start to effect the growth in a big way.
Flickr: Wolf Rock. For god's sake, this is simple. A pizza is cooked in a pizza oven, not a pizza skillet. So to reheat pizza, you attempt to replicate a pizza oven. Place a baking sheet in your oven, blasting the heat as high as your oven will go. Once the baking sheet is hot, place the pizza on it. The bottom will be crispified by the hot baking sheet.
For a toaster oven, it takes more time to heat up food. Usually a toaster oven is preheated for a few minutes, then the food is baked or broiled. For instance, reheating a piece of pizza takes about 2 minutes in a microwave, but about 5 minutes at 350 degrees in a toaster oven. An average daily use for reheating food is about 50 minutes at 425 degrees, which adds up to an average of .95 kwh, or $0.10. (Consumer Energy Center).