It's ok if frame isnot getting hot. You might get some wear and tear tho from the extra forces and grinding happening where the material is stretched, but tents are not made to last a lifetime anyway.. so if that's all you can fit, I guess that's what you have to go with. Just make sure the parts that touch the tent are cool enaugh to keep hand on them for a while after it runs for 15-20 mins on max power. If you feel too hot on the hand, maybe not such a good ideea to limit passive air cooling and put plastic near it.