Sudden temp drop in weather, should I heat coop?

[ChickenOfSpades]

I know it's usually not necessary to heat a coop in winter, but were getting a sudden drop in temp. Should I give them a little heat since they may not be acclimated yet? (I have a flat panel heater with high/low settings to use instead of a heat lamp)

We've been in the mid 70s in day and 40s at night. A big storm is rolling in and it's going to drop to highs in the 30s and lows in the lower 30s/upper 20s over the next few days.

 

[nuthatched]

As long as they can get out of the wind, they'll be fine.

 

[ChickenOfSpades]

As long as they can get out of the wind, they'll be fine.

I put up a tarp on the side facing the wind to give them some extra wind coverage and stop any cold rain/snow from blowing in