Anyone ever heard of this brand. It uses two layers of what appears to be Tedlar...an inner layer and an outer layer. The one I can get is in very nice shape, and is 17x10 and about 12ft at the roofline. It is the typical south facing solar greenhouse design. the rear wall is well insulated for the bottom half, and mirrored at the top to reflect the southern light back onto the plants. There is a heater and benches that come with it too. is this a good greenhouse for MN? I can get it practically free (i have to pay for dismanteling and setup)