Gidday, We are in the process of installing a Domestic Solar Hot Water system. We would also like to supplement the DHW on cloudy cold days with a DHW loop in a free standing woodstove. We have sized the storage tank to accomodate both forms of hot water heating. Now I'm in the process of locating a woodstove with the loop factory installed. I hesitate buying a new stove and then voiding the warranty by drilling holes in the stove to install the loop. Any ideas?