Yeah totally get that just making a point it probably can be done that's 30c above ambient outside temp and my ferm chamber is outside.But this is not a Kveik brew, and Winter is cold this far north of the equator. This Belgian brew would be a no brainer during our Summer, when indoor ambient is usually around 68F, but I want to make this relatively soon. It is my nature to worry about things, but it will be OK, and I will figure it out.
I use 60W heat belt that thing easily heated the whole freezer chamber when I used to ferment in there.
Remember freezers have kick arse insulation it works for freezing and heating things...