I've got 11 fluorescents and three fans plugged into a system of 2 surge protectors with them all plugged in to a timer that's plugged directly into the wall plug in. No problems and no doubt it's a 15 amper. Looks like a freaking octopus hangin' in there and for sure worries me a little but I work out of my home so I'm here most of the time. If a fire starts at least I'll be here so I can piss on it. Course I might want to keep that...for my plants. ha (you probably get that little joke right 72?)

But if you go over the amps a circuit is rated for all it's going to do is heat up (a little) and kick out. That's what they're there for. Too much draw and they kick out. So if you have the breaker keep kicking, you'll know it's too much. Would only have a chance of burning your house down if the wiring was older and even then not much of a chance. Most fires are started by old fans or cords or plugs or appliances or grow lights (ha!...just had to throw that in there) that short out and throw a spark and start a fire that way.

Also of all the web sites I've been on with their forums I have never seen where someone came in there and posted a thread that was named "I BURNT MY HOUSE DOWN SO BE CAREFUL!!!" Just doesn't happen that often.