Core Viewpoint - The unprecedented heat wave in Northeast China has led to a significant surge in air conditioning sales, with companies mobilizing engineers from various regions to meet the demand [1][2][9]. Group 1: Market Trends - In Harbin, air conditioning sales have seen a dramatic increase, with offline sales in Heilongjiang province growing by 817.68% and 438% year-on-year during specific weeks in late June and early July [2]. - TCL reported that its air conditioning sales in Northeast China increased by over ten times compared to the same period in 2024, with peak sales reaching 14 times and 15 times on July 13 and 14 respectively [3]. Group 2: Company Responses - Midea has dispatched over 700 engineers to Northeast China to assist with air conditioning installations, a move unprecedented in the industry [3][5]. - TCL has also mobilized over 650 engineers from various cities to support the installation efforts in Northeast China, indicating a coordinated response to the surge in demand [3][5]. Group 3: Installation Challenges - The thick walls in Northeast homes, often ranging from 70 to 120 centimeters, pose significant challenges for installation, requiring specialized workers to assist with drilling [5][6]. - Installation times have increased due to the wall thickness, with engineers taking up to four hours to complete tasks that would typically take one hour in other regions [6]. Group 4: Consumer Behavior - The unusual heat has led to a shift in consumer behavior, with air conditioning demand rising sharply in a region that traditionally does not see such spikes during this time of year [9][10]. - The average air conditioning ownership in Northeast provinces is significantly lower than in southern provinces, indicating potential for market growth as consumer demand increases [10].