Energy Star 3.0 RNC homes

[bigwave]

For all you Idaho, WA and MT HVAC Co. Here in Oregon we are going to energy star 3.0 in 2013. I know that the previous mentioned states went 3.0 in 2012.
My question is how was the transition? How many hours is 3.0 adding to a new construction home? Are you having to add balancing dampers to all the ducts to meet the +- 20% room cfm requirement? Our company is ready and approved for the change just would like some experienced feed back. Thank you in advance.

[jimj]

My question is how was the transition? How many hours is 3.0 adding to a new construction home?

If your doing manual J, D, S, and T on the the homes you are doing now and your installers know how to do a high quality install and seal the ducting your well on your way. Understand ASHRAE 62.2, charge your system by SH and SC and know how to use a manometer, multi meter and flow hood, record all the info for your HER's guy and your done!

If you aren't doing any of this now.............................Well thats another story.

The 20% room cfm or pressure differential is no issue if you followed the manual's.