I agree with Otto temp control is the way to go. I picked up a secondhand fridge for $50 and a temp controller off ebay for $50 freight free. Total spend $100. I set mine at 21° and the improvement in beer quality is totally worth the cost.
Has anyone tried using Wyeast 3724 (Belgian Saison) or similar for brewing in hotter summer temps? I've just starting brewing again after many years and am trying to get a stock pile, don't want to stop because of the temp.
I have worked in the civil construction all my life. Working all over QLD. Spent most of it making bumps in roads with graders, and copping abuse from the public.
And drink beer in my spare time.