John contracts with Fay to install a heating system in Fays factory for a price of $30,000 to be paid on condition of satisfactory completion, John installs the heating system, but Fay states that she is not satisfied with it and refuses to pay the $30,000 Fay gives no reason except that she does not approve of the heating system According to experts, the heating system as installed is entirely satisfactory May John successfully recover $30,000 from Fay Explain why or why not