Are you not using that little heater fan? I'm thinking I'll pick some of those up for next year. This past year I was using a couple spot lights and I'm noticing that my drums aren't warming up as much as I'd like. I think the crowns will be fine, and I may have some leaf burn but I've been looking at an efficient heater for a while. Then I'll just need the heater and a small low watt led to light up so I know the heaters are going on and off.

I still have that little fan, I'm just not sure if it ever kicks in as it's on a tc2, on at 20F (-7C). I don't have a thermometer this year, but last year I never seen the temperature going under 0C. And this year was not that cold anyway.

It's more of an insurance.

https://goo.gl/photos/2yj4UJompvpQqnqm6

2016 edition; I used only heat cables and I forgot to put inside the wireless thermometer, so I was not sure if it was working or not. I would say It came out OK. Just a few burnt leaves that were touching the box. I may have to move to the mummy method next year, it's getting big.

Tavi