A heat pump will replace both the furnace and air conditioner/central air unit. It may be costly to install, with the national average falling between $3,956 and $6,702, but it will save you considerable money in energy costs. Consider the following factors before installing a heat pump: The biggest single factor is determining the price of your heat pump is the size of your house.
Lower the oven to 350Â°F and roast the turkey for 1 hour: Place the turkey in the oven and immediately lower the heat to 350Â°F. Roast for 1 hour, then begin checking the temperature. Check the turkey's temperature: The turkey is done when it reaches 165Â°F in the thickest part of the breast meat.
1.5kg equals 3.3lbs turkey should be cooked for 20 minutes per pound and 20 minutes should be added to the total cooking time.So at least 1hour and 20 minutes should see the turkey cooked! 12 pound turkey crown should cook in the oven for at least 3  hours. The turkey should cook at a temperature of 325 degrees. 1 person found this useful. Edit.