and then, you will need a water to air heat transfer

12 x 12 Water to Air Heat Exchanger 1" Copper ports w/ EZ Install Front Flange | eBay

Check before you buy, but that will cover over 90% of the ones being sold. Even most that are listed as 4" are actually 3.5". The fin area is 12"x 12". (5) Do not bend the…

EBAY.COM