Answer:
This is an example of availability heuristic.
Explanation:
Availability heuristic is understood as a mental shortcut; an individual gets immediate thoughts about a certain subject, avoiding any "delays" or much conversation about the topic. He/she just gets to the point.
In this case, instead of circling around the refrigerator subject, Ian immediately tells Susan that she can buy any except for the Icewall, and proceeds to explain his own personal experience.