Fran and Bob Ciaccia Bob and Fran Ciaccia could not be happier with their reverse mortgage, which unlocked some of the equity in the house they purchased in 1966 for $12,500. Reverse mortgages are federally insured loans available to U.S. homeowners over age 62. The loan is made against the equity in the house, and the principle, plus interest and some federal insurance fees, are not repaid until the homeowners or their children sell the house. “I cannot find a downside,” Fran Ciaccia, a retired high school cafeteria cook from Levittown, Pennsylvania, said in an interview. “We have told so many people about it.” Although the Ciaccias may be big fans, reverse mortgages are unpopular, despite historically low interest rates…