I've got helix, johnson, and ranco thermostats running over here. The johnson and ranco are pretty much the same, except you can buy the johnson from RBI with a night drop module. They also make a clicking noise as they turn on and off, so if you think that might be a bother, you may want to go with the helix or herpstat. Otherwise they're all good thermostats and will keep your temperatures where you need them.