Review on SCITOO Heater Plastic Chevrolet Trailblazer by Matt Chirila

Update - Out of service after 45 days. The seller responded and refunded the purchase price for the defective device. Will not fit the holes in the 2003 GMC Envoy XL SLT's plastic case. I had to mount it without the original round plastic cover as the screw holes were offset by about 30° from the original. The vent hose and electrical connection could not be made with the lid closed, so I had to install a new fan without closing the lid. I would return it for another one with the right fit but it's snowing today and I need the heater to work.