Leaving 3-1/2 week old chicks for three nights...lows 60's...heat lamp?

[sjsunshine]

I'm leaving my 3-1/2 week old chicks for three nights. They are currently in our garage...in a plywood box with sides 3 feet high. Pine shavings on the garage floor. Temps will be in the low 80's during the day, and in the 60's during the night. The garage will be closed the whole time (with the exception of someone coming to feed/water them). Think they'll be ok without a heat lamp? I turn it off during the day right now and they are fine...and I don't want to leave the heat lamp on the whole time while we're gone if I don't have to. But I don't want the chicks to get cold either...

 

[Fred's Hens]

They are at the cusp of not needing any assistance. That said, a bit, at night, wouldn't hurt. I would certainly use a low wattage bulb. Do you have a timer? You'd probably want one. Snap on at 11 pm and snap off at 8 am? Something similar.

 

[sjsunshine]

Found my timer! Great idea...thanks