Next, Mike led them through a central wooden corridor and pointed to the ground beneath: "This is our big innovation for the year! Originally, each greenhouse had its own spring water system, and the efficiency... uh, it was like using a matchstick to burn a castle."
He patted the thick iron pipe embedded in the ground beside him, his eyes full of pride.
"Now it's much better! This is the connected heat corridor, we've connected the entire greenhouse cluster. The hot water flows through the main pipe, reaching everywhere. Plus, there's a recovery vent to channel the excess heat to the adjacent storage rooms and workshops, doubling as insulation. And there's more..."
Emily raised an eyebrow slightly: "You've even considered thermal energy recovery? That's very professional."
"All on Lord Louis's advice! 'Heat is a scarce resource, not a single bit should be wasted,' I remember it very clearly!" Mike laughed, the wrinkles at the corners of his eyes bunching up.
