Serious miners are in locations that don't require additional costs for cooling. You maybe should quit mining or only do it in the colder months for the free heat.
If he do mines without minding too much about profitability but rather making this as a sort of hobby then quitting wont be possible yet he had made
some good arrangement with his GPU's and same as you said if you are serious with mining you would considerate the condition of your place when it comes to climate.
Right thing to do i think. But in my country, there are a lot of miners that go because of hype and never think about cost to do it. And now some of them are already quit with sell their GPUs in cheap price and they loss in their investment.