need some info on duct blasting

[nc comfort]

as of march 1 all new duct systems must pass duct blaster test. how long does this normally take and is there any certain duct blaster better than others?:cheers:

[Honesttech]

Duct tests usually take about an hour depending on how many registers there are.
I've used the Minneapolis Duct Blaster many times. Always worked perfect for me.

[jim bergmann]

Here are some manuals and quick starts. We carry both. There are discounts for HVAC-Talk members. They are both good products about the same price. It comes down to preference.

If you call Eric, our sales manager Monday we might have a few Retrotec Q32's left on the shelf on sale. They just introduced a new version called the DU200 which is a little lighter.

http://www.energyconservatory.com/download/dbmanual.pdf

http://retrotec.com/Portals/5/Documents/Procedures/Procedure-DucTester-PR100.pdf

Here are some videos about the process also.
http://www.youtube.com/playlist?list=PLFA13BD8E71D7AA72&feature=plcp

One thing I would also consider is a sent of vent caps or vent covers instead of grill mask as they are reusable and easier to install.