Educated at Harvard and Cambridge, Mark Swann found his calling as a fireplace specialist in Washington DC. For 30 years, he personally rebuilt and renovated thousands of fireplace...view moreEducated at Harvard and Cambridge, Mark Swann found his calling as a fireplace specialist in Washington DC. For 30 years, he personally rebuilt and renovated thousands of fireplaces and chimneys, solving the most stubborn smoking and efficiency problems.view less