Originally Posted by wilserbrewer
I would just pour a pitcher of hot tap water into the swamp cooler. Or carefully add a few pints of boiling water to bring the temp up to the low sixties.
naw...not necessary. assuming its the 'wet t-shirt around the primary in a tub of water' type cooler, just remove the t-shirt.
heating up the water in the cooler only heats that water. it still evaporates and cools the primary, and it would take probably 10-12 hours to see that warmer water affect the 5+ gallons of wort.
remove the t-shirt and it won't be evaporating much, and the heat from fermentation will kick up the temp a few degrees.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10