Technical Specifications

5
METHOD:
Field Test to Compare Adaptability and Speed of Application
A home remodel was used as an opportunity to compare the time needed to assemble and attach
the Speedi Boot to the floor and ceiling vs. the time required to utilize the conventional approach
for the HVAC boot in a similar application.
Laboratory Test to Determine Air Loss
A sealed chamber was designed and constructed containing three HVAC Boots around which,
measuring devices could monitor air loss at each boot; (a) a conventionally installed boot, (b) a
Speedi Boot application with the factory sealed dust and debris cover removed and (c), a Speedi
Boot application with the factory installed dust and debris cover left intact.
Icynene, a spray foam insulation material, was applied inside the 2 of the boots as an air flow
barrier (a,b). The factory sealed cover was retained on (c) for the purpose of testing it’s
resistance to loss of integrity under air pressure, thus helping to predict it’s dependability during
duct pressure testing. Air pressure was introduced into the chamber and pressure testing devices
were used to (i) measure pressure within the chamber and (ii) measure the pressure of escaping
air at each boot. The purpose of this study was to measure pressure differential and thus to
determine resistance to air loss between the different systems.
RESULTS:
Field Test to Compare Adaptability and Speed of Application
The results revealed a significant time advantage for the Speedi Boot which consistently required
½ the time needed to access and install the HVAC boot using the conventional blocking and
installation techniques. The installers consistently agreed that the adaptability and greater speed
on installation was a distinct and significant advantage in favor of the Speedi Boot.
Laboratory Tests to Determine Air Loss
A. Conventionally Applied Boot: With a constant pressure of 50 pascals in the pressure
chamber, the recorded pressure above the boot surface was observed to measure 38 pascals
(loss of 76%).
B. Speedi Boot attachment, with the factory installed dust and debris cover removed: With a
constant pressure of 50 pascals in the pressure chamber, the recorded pressure above the
boot surface was observed to measure 21 pascals (42% loss).
C. Speedi Boot attachment, with factory installed dust and debris cover retained: This test
was conducted for the purpose of demonstrating the integrity of the dust and debris cover
when subjected to significant pressure for a 6 hour interval. At the end of the 6 hour test
period, at a continuous chamber pressure of 75 pascals, measurable pressure above the
boot assembly was negligible; a differential of 99% (less than 1% loss).