After repeating several times, a layer of crystal-clear "Ice Glaze" was formed.

"This layer of Ice Glaze is crucial; it will absorb the heat before the smoke’s heat can reach the fragile snow brick structure."

"The very limited heat in the smoke will mostly be consumed in sublimating this thin layer of ice, preventing any melting or dripping. This is a self-repairing design."

After completing the inner wall treatment, he carefully overturned another batch of similarly processed snow bricks on top and completely sealed the joints with snow slurry.

A smooth, heat-resistant, approximately two-meter-long sealed smoke duct was thus born.

Its end, like a silent white python, precisely extended into the foundation of the hemispherical igloo.

Now, only the final part remains—the hearth.

"A few days ago, to make the Ice Drill, I used the Triangular Hand Saw with great effort to cut out slabs from a giant Soapstone, building a small forge."

"Now that the forging work is complete, these Soapstone Slabs, with excellent heat resistance and retention, have become the perfect prefabricated parts for my new equipment."

With tremendous effort, he transported these heavy slabs one by one to the construction site on the ice.

He first laid a thick wet layer of Spruce Wood Segment on the ice as the foundational insulation layer.

Then, he placed the largest Soapstone Slab on the wood segment, forming a smooth insulated platform.

"The wood provides foundational insulation while the slab ensures heat resistance and load bearing, double insurance, foolproof," he said, patting the hard stone platform with satisfaction.

On this sturdy platform, he began interlocking other cut Soapstone Slabs together.

Because the edges of the slabs were carefully cut, their joints were almost seamless.

Soon, a rectangular, four-sided enclosed "stone box" began to take form.

He precisely aligned one end of this stone box with the previously built snow brick smoke duct entrance and thoroughly sealed the joint with wet snow slurry and gravel, leaving no gaps.

This will be the "exhaust port" of the stove.

Lin Yu’an stood up, walked around his new creation, and began to explain the ingenious design in detail.

"This closed stove is actually divided into three functional zones by me, where air and smoke will undertake a journey from start to finish."

Lin Yu’an crouched down, aligning the camera view with the low intake port. Wind and snow whistled past him.

"The principle of this stove is not about how complex it is but about how straightforward it is."

He pointed to the frontmost intake port with his gloved finger, "This is the starting point. Fresh air is drawn in from this only low entrance, entering the first part of the furnace."

"I will maintain a small pile of high-temperature charcoal fire here using the most fire-resistant hardwood, the power source of the entire system."

His finger moved along the smooth top of the stone stove towards the middle, "Look here, the hot air carrying combustion waste gases will inevitably flow backwards."

"In this area, I will pile up wet wood chips and moss. They won’t ignite but will be baked and distilled by over one hundred degrees hot air flowing below."

"It’s just like putting a wet towel on a steaming hot iron plate; the heat will force out moisture, forming dense smoke. This is the smoke factory."

His finger finally stopped at the end of the stove, the opening connecting to the white smoke duct.

"Finally, all gases, whether high-temperature waste gases or low-temperature dense smoke, will converge here, and be forcibly drawn into the smoke duct by the smoke room’s negative pressure system."

"I just need to add enough charcoal before bed and pile up the wet materials, and generating smoke throughout the night shouldn’t be a problem." 𝗳𝗿𝐞𝕖𝘄𝗲𝕓𝗻𝚘𝚟𝕖𝐥.𝚌𝕠𝕞

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(Requesting monthly votes~~ another Chapter tonight.)