The first H1 Duct Truck ever made, this was the beginning of the revolutionary new Duct Truck design by Hypervac Technologies that forever changed the way Duct Trucks were made. On this first model of the H1, Hypervac got rid of the PTO drive system, added light weight aluminum construction, created an easy clean out bin and managed to cram in extra storage space as a result of the new design. Professional Air Duct Cleaning Equipment would never be the same.
Unique even for the HAVAC vacuum system, the first H1 had a diesel powered HAVAC unit installed. As with most HAVAC systems, all subsequent H1 Duct Trucks had smaller gas engines. This was done for three main reasons: convenient for trips to the gas station, extra HP was unnecessary, and it was easier/cheaper to operate and repair if necessary:
The T-take off eventually evolved after the first H1. Subsequent versions have the vacuum hose hookup coming out of the back rather than from either side. T-Take offs are still an option on the H1 or H2 Duct Truck, but not part of the standard design:
Finally, the very first H1 Duct Truck was completed. For the first time, all the new design features were available in the duct cleaning industry: a separate engine to power suction got rid of the PTO system, an easy clean out bin, lightweight Aluminum construction, enough storage for a portable duct cleaning vacuum and a separated air compressor.
After completing the first H1 Duct Truck, demand for the new design has grown due to the innovative changes made by Hypervac Technologies. Although the first H1 was welded together independently of Hypervac, today each Duct Truck is welded and bolted together in-house.
To learn more about the H2 Duct Truck, click here.