Greenhill EnviroTechnologies Inc.

The Company
What are Solar Air Heaters?
Benefits of Solar Air Heaters
Guide to Build Your DIY Solar Air Heater
Meredith's Solar Furnace Video/Photo Story
Videos
Heater Performance
Solar Heating Math
How to measure sunlight strength
FAQ
Products
About Okapi Systems
Okapi 1
Okapi 2
About the Wireless Module
About the Fan
Installation Diagrams
Instruction Manuals and Videos
Wire/Fan Customizations and Consultations
Product Standards
Buy Now
Buy Complete Okapi Systems
Purchase Light Filter Set
Terms and Conditions
Android and Java Apps
Okapi Solar App for Android
Solar Heater Output Calculator
Okapi Viewer App
Okapi Viewer App FAQ
Privacy Policy
End User License Agreement
Contact

Benefits of Solar Air Heaters
What are Solar Air Heaters?
The Company
The Founders
Greenhill EnviroTechnologies Okapi Fan Control Systems: Variable Speed Fan Controllers for Solar Air Heaters, Solar Furnaces, Solar Space Heaters, Solar Collectors
Products
About Okapi Systems
About the Fan
Okapi 1 System Complete
Okapi 2.i System Complete
Installation Diagrams
Instruction Manuals and Videos
Product Standards
Buy Now
Buy Complete Okapi Systems
Terms and Conditions
Contact
A Fan Heater Near the Ceiling?
Two 4 x 8 ft Solar Heaters Operated by an Okapi 2.i System
Okapi 1 Circuit Board Kit
Okapi 2.i Circuit Board Kit
Okapi 1 Wire and Sensor Kit
Okapi 2.i Wire and Sensor Kit
Okapi Fan Kit
Okapi Electrical Box Kit
Assembly Instructions for the Okapi 1 Kit Set
Assembly Instructions for the Okapi 2.i Kit Set
Hacking Okapi 2.i: Secrets Revealed
Welcome to Okapi Systems: Make the Next Generation Proud!
I am building a Huge solar heater. How big a fan will Okapi run?
Why are you pushing the heat out at floor level? No one else seems to be doing this.
Isn't it bad for the Fan with the hot air blowing through it?
Isn't it going against the "natural force of convection" to blow the heat down and out near the floor-level?
Can I use a PV Panel to operate my Okapi 2.i System? How many watts should it be?
Can I simply connect the Okapi System directly up to a PV (Photovoltaic) Panel?
Top Secret
WHY are you moving the air from the Ceiling to the Floor? It seems backwards!
When connecting Okapi to a PV Panel and Battery system, what kind of battery should I get?

What are Solar Air Heaters?
About Okapi Systems
Contact
Benefits of Solar Air Heaters
The Company
The Founders
Greenhill EnviroTechnologies Okapi Fan Control Systems: Variable Speed Fan Controllers for Solar Air Heaters, Solar Furnaces, Solar Space Heaters, Solar Collectors
Products
About the Fan
Okapi 1 System Complete
Okapi 2.i System Complete
Installation Diagrams
Instruction Manuals and Videos
Product Standards
Buy Now
Buy Complete Okapi Systems
Terms and Conditions
A Fan Heater Near the Ceiling?
Two 4 x 8 ft Solar Heaters Operated by an Okapi 2.i System
Okapi 1 Circuit Board Kit
Okapi 2.i Circuit Board Kit
Okapi 1 Wire and Sensor Kit
Okapi 2.i Wire and Sensor Kit
Okapi Fan Kit
Okapi Electrical Box Kit
Assembly Instructions for the Okapi 1 Kit Set
Assembly Instructions for the Okapi 2.i Kit Set
Hacking Okapi 2.i: Secrets Revealed
Welcome to Okapi Systems: Make the Next Generation Proud!
I am building a Huge solar heater. How big a fan will Okapi run?
Why are you pushing the heat out at floor level? No one else seems to be doing this.
Isn't it bad for the Fan with the hot air blowing through it?
Isn't it going against the "natural force of convection" to blow the heat down and out near the floor-level?
Can I use a PV Panel to operate my Okapi 2.i System? How many watts should it be?
Can I simply connect the Okapi System directly up to a PV (Photovoltaic) Panel?
Top Secret
WHY are you moving the air from the Ceiling to the Floor? It seems backwards!
When connecting Okapi to a PV Panel and Battery system, what kind of battery should I get?

Greenhill EnviroTechnologies Okapi Fan Control Systems: Variable Speed Fan Controllers for Solar Air Heaters, Solar Furnaces, Solar Space Heaters, Solar Collectors

Looking for the Solar Calculator app? Click here: Okapi Solar App for Android

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