Originally Posted by n240sxguy
Unless you're using a heat lamp, I don't think the light will be nearly big enough. While I was using my old fridge as a chamber this past winter, I used a 1500 watt space heater to keep temps up.
Just to add some perspective, my ferm chamber is heated by a 60W incandescent bulb in an old metal coffee can wired to the "hot" side of an STC-1000. The ferm chamber is in my wood room, which often got down to -10c, and I never had an issue keeping temps at 12-16c all winter (I spent 3 months doing lagers). I have no doubt that a 100 or 150w bulb in a properly insulated ferm chamber could keep your heat where you want it in even very cold weather.
Fermenting: American Stout
Kegged: Biere de Garde, Premium American Lager, "May Day" Belgian Pale Ale, "Witty Retort" Light RyePA, "Spring Break" Marzen
Bottled: "Sh!tshow" Schwarzbier, Maibock, Saison, Kolsch