Hello, Last year I bookmarked an extensive list of service penetrations. It was a great reference but now the link takes me to the main GBT page and not the specific thread. The search function has not lead me to the list but I've read reference to it being from 2006. Can someone direct me to it, repost it, PM it to me or email it to me at briantompo at hotmail dot com. Thank you, Brian

Here are the ones that we cut:

3" for well water
3" for LP gas
3" for electric service
3" for AC line set
2.5" for telecom and satellite
6" for HRV intake
6" for HRV exhaust
3" for Water heater intake
3" for Water heater exhaust
4" for Furnace intake
4" for Furnace exhaust
4" for Dryer Vent

Hope this helps

Thanks Galnar-that is a help. I guess nobody remembers the list or I'm thinking of a different forum. Brian

Posted By galnar on 26 Nov 2010 06:30 PM
Here are the ones that we cut:

3" for well water
3" for LP gas
3" for electric service
3" for AC line set
2.5" for telecom and satellite
6" for HRV intake
6" for HRV exhaust
3" for Water heater intake
3" for Water heater exhaust
4" for Furnace intake
4" for Furnace exhaust
4" for Dryer Vent

Hope this helps

I would also consider:

2" for sump pump discharge
2" for each sillcock
2" for lawn sprinkler supply pipe
1" for outdoor temperature/humidity sensor
+ various for outdoor lighting, receptacles, security and automation equipment