A condensing economizer can increase overall heat recovery and steam system efficiency by up to 10 percent by reducing the flue gas temperature below its dew point, resulting in improved effectiveness of waste heat recovery.
1 Place pork loin into oven, turning and basting with pan liquids. 2  Cook until the pork is no longer pink in the center, about 1 hour. 3  An instant-read thermometer inserted into the center should read 145 degrees F (63 degrees C).4  Remove roast to a platter. Rub the meat with the remaining garlic mixture and olive oil. 2  Place pork loin into oven, turning and basting with pan liquids. 3  Cook until the pork is no longer pink in the center, about 1 hour. 4  An instant-read thermometer inserted into the center should read 145 degrees F (63 degrees C). 5  Remove roast to a platter.
Next, cook the pork loin for about 20-30 minutes per pound. Insert a meat thermometer, and test the meat after cooking. When internal temperature of the meat is 150 degrees Fahrenheit, the meat is ready to be taken out of the oven. Cover the roast with aluminum foil, and let it sit for 30 minutes before serving.