It won't be running for 12 hours.. Or what ever phase of growth you use the heater in. You set the thermostat at around 73-78,when lights are off. It will only come on when the temps get below setpoint. I can't even tell you how much it would cost,considering when you calculate electric usage it's running for that amount of time. I can't really see that much of an increase in my bill.

Ga.
GaGrown Reviewed by GaGrown on . dark time temp issues I'm two weeks into 12/12 and my dark time temps are sometimes in the upper 50s. I suspect that they might even drop a little lower in Dec & Jan. How bad will this effect my yeild and quality? I can't afford to run a heater. And at what tem280247p will the stunting rjruin the project? Rating: 5