Greenhill EnviroTechnologies is the first and only
creator, manufacturer and distributor of
intelligent, variable-speed fan control systems
Using sophisticated micro-controller programming,
powerful variable-speed fans, wiring and multiple sensors,
our Okapi Fan Control Systems are designed to
maximize your solar heat harvest and minimize your heating bills.
If you have made your own solar air heater
(pop-can, beer-can, down-spout, screen or any other closed-loop design)
you will find that a simple snap-disc switch does not do justice
to your hours of planning and careful work.
You need a fan control system that is:
You need a fan control system that truly puts your solar furnace to work for you.
here on our website.
This is the innovation in solar air heating technology everyone has been waiting for:
remain passive no longer!
Buy your Okapi Fan Control System today.
Prepare for winter and prepare for that amazing feeling:
Make the Next Generation ProudTM