The fire broke out approx 8:30 am this morning after the couple left their home for work.  I spoke with Wendy Frongetta one of the owners of the home at 6323 East Main St. South Byron.  Wendy spoke of the loss of her Dog "Frank" he was the sweetest 7yr. old pit-bull that they loved who did not escape the fire.  Heavy fire damage claimed about 80 percent of the home.  No other injuries were reported and cause is yet to be determined pending investigation.  Many fire crews were on the scene putting out the blaze.