Ok let me understand this since you are constrained on character count.
Dont buy a light to heat the tent just yet.
You need a light for UP to 3x3 I am with Grey Wolf on that TS-1000, have one in a 2.5 ft veg tent and love it.
Excellent full spectrum light, Migrow did a review on youtube recently IIRC.
You will need enough head space for
@20 inches of distance from plants. Price is just unreal good.
Now lets keep those plants indoors.
Seriously get a carbon filter and a 4 inch extraction fan. pull the air out clean it and just dump it in the house it will reduce your heating bill and you will smell no more than venting outside. It works I am using exactly that. That is also very difficult to impossible to detect from outside the home or even another room. In summer you may have to deal with heat but hell who doesnt :)