direct heat or heat air in fermentation chamber

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shark_sandwich

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What do you all think I have a small chest freezer fermentation chamber and the space heater takes up too much room (can only get one bucket in so if I change the heat source I could get another in) so I was thinking of going with some flex watt stuff also the hair dryer could be a good option but my real question is:
Is it better to use direct heat to the fermenter or heat the air?
 

diS

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I like to heat the air- maybe less effective but also less costly method (I use light bulb in metal can, it is wired with PC fan on STC1000).
 

RM-MN

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Using direct heat will change the temperature faster.... but you don't need to change the temperature of beer, just maintain the temp. I'd look for cheap instead of fast.
 

Beernik

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I have a brewbelt hanging loosely across 2 fermenting buckets. It puts out enough heat to keep a full upright freezer in the 50Fs out in a 30F detached garage.

I also have a fan in there to circulate the air evenly.
 
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