Northern Tool offers the SolarSheat 1000GS Solar Fan Assembly for $899.99. Coupon code "256691" grabs a $50 Northern Tool gift card. With $65.49 for shipping, and assuming you'll use the gift card, that's $30 under our mention from two weeks ago, $450 off list, and the lowest price we could find. It features a 1,000-watt solar thermal air collector, duct kit, wall mounts, thermostat, and fan assembly with 15-watt PV panel. Deal ends November 22.