Judd Trump broke sweat but it was only due to the heating as he brushed aside Nigel Bond to reach the Haikou World Open quarter-finals.
The world number one beat seniors champion and fellow Englishman Bond 5-1 in the second round to set up a last-eight tussle with Matthew Stevens, who has reached this stage with a borrowed cue.
Trump fired three centuries - 102, 111 and 104 - and the 23-year-old was supremely dominant as Bond, 47, offered little resistance.
The only complaint from Trump surrounded the venue on Hainan Island, China, where the heating made for uncomfortable snooker conditions.
"I played pretty well," Trump said on worldsnooker.com.
"Considering the conditions are tough here and it's very hot it was one of the best games I have played. It was very warm in the arena but you just have to get on with it. My form is getting better."
Trump had whitewashed Mark Joyce 5-0 in the first round and picked up where he left off, suggesting Stevens will have his hands full tomorrow.
Stevens was hampered against Shaun Murphy, due to his cue going astray on the flight to China. But Mark Williams lent his fellow Welshman his cue, and Stevens came through an impressive 5-3 winner over the 2005 world champion.
At one stage Murphy led 3-1, but Stevens reeled off four frames in a row and finished with his highest break of the match, a run of 73.
"Hopefully my cue will arrive tonight," Stevens said. "I didn't expect to get this far so everything now is a bonus. Maybe I'll put my cue in the bin!"
World number two Mark Selby will take on Australian Neil Robertson for a place in the semi-finals after they both recorded crushing wins.
Selby fended off Barry Hawkins 5-1, and Robertson toppled Scotland's Graeme Dott, the man he beat in the final of the 2010 World Championship, 5-0.
Selby echoed Trump's concerns over the heat, saying: "I might wear a glove tomorrow if the conditions are the same."
John Higgins had a surprisingly emphatic 5-0 win over Stuart Bingham, while Mark Allen had runs of 82, 61 and 73 in battling from 2-0 behind to overcome Robert Milkins 5-2.
Ding Junhui also took a while to get going, but a break of 127 in the fourth frame hauled him level with Hong Kong's Marco Fu and the Chinese cueman eventually also won 5-2.
It was meant to be the match the crowds were waiting for as Asia's two most celebrated players went head to head, but there were rows of empty seats at the venue.
Higgins awaits China's leading man in the quarter-finals, and Scotland's four-time world champion said: "I'm looking forward to playing Ding in front of home his crowd because he's a hero here and it will be a good challenge. It's a very strong line-up."