I can upgrade the shelter

Holding the hammer taken from the workbench, Chen Xin struck the ice accumulation in the shelter repeatedly, unable to avoid feeling exhausted and panting heavily.

Supporting his waist, Chen Xin leaned against the wall inside the shelter and took a deep breath. Although the oxygen content in the shelter was always high due to the oxygen generator and the planting greenhouse, this location was practically considered as external, making him breathless and panting after the ice removal session just now.

Reaching into his pocket for an oxygen bottle, he opened the protective mask on his face, took a few breaths through his mouth and nose, and felt much better before putting the protective mask back on and straightening up.

"Whew, how long will this ice removal take?" Chen Xin couldn’t help but sigh. The ice was so thick that the small hammer in his hand couldn’t effectively break it, only knocking off some ice fragments with great effort.

This inevitably made him feel somewhat frustrated, as ice removal was not an easy task. Unlike shoveling snow with a shovel, it’s hard to clean thoroughly.

But ice, especially frozen hard ice, is very difficult to clear. In many places, if it froze over, it wouldn’t thaw until spring arrived.

However, now Chen Xin couldn’t wait for the temperature to rise and the arrival of a warm spring for the ice to melt on its own; he had to find a way to remove the ice accumulation in front of him, which was at least thirty centimeters thick.

To be honest, he had anticipated ice accumulation and knew that leaving it unattended for a few days would lead to serious issues, but he hadn’t expected it to be frozen a foot thick already.

Such thick ice accumulation would be difficult to clear even with professional ice axes and iron bars, let alone with the small iron hammer in Chen Xin’s hand.

With the hammer, he struck the ice surface a few more times, but the effect was minimal. Apart from chipping some ice fragments, there wasn’t even a crack on the ice surface.