(Bloomberg) Southeast Asia’s severe heat wave is pushing temperatures and power demand to new records, straining grids and prompting traders in the region to bulk up on natural gas cargoes.Most Read from BloombergTesla Soars on Tentative China Approval for Driving SystemHSBC CEO Quinn Unexpectedly Steps Down After Almost 5 YearsStocks Trade for 390 Minutes a Day. Increasingly, Only 10 MatterUS Warns ICC Action on Israel Would Hurt Cease-Fire ChancesYen Sparks Intervention Suspicion After U-Tu