Under a levari facias, awarded as described in this subchapter, the mortgaged premises shall be taken in execution, and after notice given in the same manner as in other cases of the sale of lands upon execution process, shall be exposed to public sale, and upon such sale and confirmation thereof, shall be conveyed by deed to the purchaser; or if there be no sale for want of bidders, return shall be made accordingly, and thereupon a liberari facias may issue and be executed in the same manner, and with like effect, as provided in other cases of the sale of lands upon execution process.