Comments on: Why is My AC Running All the Time? Thu, 02 Mar 2017 12:58:02 -0600 hourly 1 By: adam baxter Mon, 21 Jun 2010 17:57:26 +0000 because of the radiant heat build up in our attics and garages we here in arizona have developed the GF-14 garage and attic cooling fan. radiant heat is everywhere interest is everywhere and rising