That’s not an explanation of the problem though, those are just characteristics of a good sauna.
I don’t see the problem defined well in the article, but it can mostly be surmised from the intro:
> Malcolm has analyzed the Finnish 1992 sauna ventilation study profile, applied his knowledge and experience as a 45 year engineer to test and better understand sauna ventilation in his own backyard sauna.
They wanted to test and understand the sauna ventilation in his backyard sauna and used a 1992 research paper as a reference. I can only assume this venture started because they were dissatisfied with the ventilation in their backyard sauna.
I don’t see the problem defined well in the article, but it can mostly be surmised from the intro:
> Malcolm has analyzed the Finnish 1992 sauna ventilation study profile, applied his knowledge and experience as a 45 year engineer to test and better understand sauna ventilation in his own backyard sauna.
They wanted to test and understand the sauna ventilation in his backyard sauna and used a 1992 research paper as a reference. I can only assume this venture started because they were dissatisfied with the ventilation in their backyard sauna.