Kit #2 features a double HVAC unit with multiple plenums and curved returns (unlike the angular returns included in Kit #1).
Additionally, there is an exhaust stack that can be mounted to the side of any building. 8 curved entrance plenums, 2 long trunk lines and 2 short trunk lines provides an endless amount of configurations to conform to any building!
Easy laminated construction ideal for the beginner to the expert!
Click here for: Instruction Manual