Pay for a load calclation, You are getting a FREE several thousand
dollar deal so why be a cheap ass. You are suprised the salesman dont
want to stay , why should they , they know the deal. You are wondering
if you should forget the deal, yea thats dumb. Here you could pay extra
for a better unit or even tip a few people. But dont be to generous
its all fair price for a fair job. You are lucky to have this offer. I
dont know yor local but look into a 94% furnace and pay the upgrade if
you cant get it free