If you don't have the heat on yet, then it's a perfect time to being it in, in my opinion. I try to shoot to being things in about 2 weeks before I turn on the heat so things can acclimate before i turn on the dry heat from the heater. I bring in oncidium a and Dendrobiums already spiking and or flowering and have had no issues with blooming. Just be sure to avoid a direct air blast if you do have your heater on. Nice and slow does the trick for me.