Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Works well for my chicken coop!

I have two models, both for my chicken coops. I have the warm weather model that turns a fan on at around 78 degrees and shuts off around 70. On nights that drop into the 60s, the fan is off when I go out to the coop in the morning - so I know it works. And I have the "on at 35" version, which turns an oil based heater on in winter time. I WISH there was a 30 - 40 degree version. This winter, since my chickens are older, I'm trying the "on at 20/off at 30 model." I'll still use 35 degree model for my waterer warmer though.