HAF fans/ heaters

[AHAB]

Hey All,
GH is built... now I have to install Horizontal Air Flow fans.
Any brand recommendations?
I only have 500 square feet of floor space but about 5800 cubic foot air space according to my GH builder.

I also need recommendations for an electronic heater for down here in Central Florida where we only occasionally go down into the low 30's, I grow mostly paph's so 50 degrees is the lowest it can go
Thanks,
Jim T

[Don Perusse]

Hi Jim - I live in SW Georgia, just above Tallahassee and have a Poly g/h that is 10 X 12 which is admittedly smaller than yours BUT, I only use a 20" box fan hung from the ceiling running 24/7 and a little 12" electric heater with a thermostat control on it during the winter.
This will be my third winter and my G/H has never gone below 50 degrees and NO damage to any of my orchids, which I have a collection of about 180 orchids. Good luck with yours. Don