I have a 13 yr old Rheem system that has failed. It is an electric heat pump outside unit model is RPGC-042JAS. What ton size is it and a contractor wanted to replace it with a 3 ton Bryant Evolution series with puron. Should it be a 3 or 4 ton. He said Bryant doesn't come in half tons. Please help with info.The old system worked fine in the summer and a little cool in the winter months.Hard time keeping up on cold windy days.SHOULD HE BEING GOING DOWN TO A 3 TON UNIT?

[Edited by john3an3 on 06-13-2005 at 10:24 PM]