Kapow. Holy Batman look at my gas bill

Today I got my gas bill for the month, effectively for the use of January. The amount is 142,870 won (approx £75). It's the biggest utility I've ever received in Korea. In my old apartment in Winter I was paying about a quarter or a fifth of that price. I can't complain about my new place. It's much bigger and more comfortable and also quieter and has natural light, but I am still in shock about this bill. It's a correct amount so no complaints there. There are now two of us and when it's cold we put the heating on. That's gonna stop now I guess. Roll on Spring. I am now wondering what the electricity bill will be for the Summer months when the air conditioner will be on.