Replacement of boiler for apartment complex 72 units estimates completed #nn Have calls into both pace and Ferguson for estimate pricing for both standard boilers condensing boilers and Navien tankless boilers waiting for estimates to be sent to be able to write up estimates for customer Copper piping has all been replaced about two years ago found two leaks hot water return line elbow coming up from ground copper pipe is pretty corroded on the outside due to condition of copper pipe could be additional work having to cut concrete up to get new pipe connected other leak is in hot water out line at an elbow.