2018 Mercedes-Benz Sprinter 3500XD Cargo Van, 144-inch wheelbase, high roof 4X4 Frank Gstrein is a Great Pyrenees owner who has extensive Daimler experience. He was invited to work alongside Kingclima Commercial Vehicle HVAC’s technician and create his vision. 45,500 BTU/h air conditioning; 39,000 BTU/h heat; under-body condenser