For a coil and heat pump or heat pump and air handler? Please provide model numbers if they were given to you. Does it include a new thermostat to control the dual fuel setup? More info is needed, including materials, warranty, etc... The prices sound a little high to me, except the last one. I wonder what makes his bid so much lower, though.

wiggie

post mdl number for both HP condenser and air handler/coil.

if going dual fuel-HP with oil backup-then just go with a 13/14 SEER HP model with highest HSPF eff rating.

IMO