Thanks for the input Eric.
I have been watering once a day at the moment but as it gets a little warmer I think it will move to twice a day.
Initial observations Started seeds in house last friday still no sprouts
Started seeds in GH sat afternoon today is tuesday and I allready have several lettuce sprouts showing
I am impressed with the GH performance so far
also noticed the area under the shelfs now has lush green grass which before watering started it was brown and thin.
Temp hit 103 yesterday opened 2 vents and it droped to about 87 in an hour.
I want a permant GH and I think My Better half will be pushing for it once some more results come in.