Discovered rot damage in the wall in the "boiler room." I'm almost certain the damage was caused by a vent pipe (not visible in the photos, removed) that dripped/ran for many years. When we bought the house, it was constantly dripping a bit from the pipe, and that was the first thing we addressed.
The concrete slab was likely consistently damp at the wall inside the floor drain, and the wood that touches the slab absorbed moisture.
The wall visible in the photos is the house's old exterior wall. The house was extended in the 60s, and a slab was poured at that time. This room is in the extension.
The question is whether this needs to be a concern? It's not damp today, so the damage won't worsen. Replacing all the rot-damaged wood; timbers/wood framing and the sill is not possible without moving the heat pump and pipes...
I'm wondering if any of this might be load-bearing, posing a potential risk?
