To get email notification when someone adds to a thread you're following, click on the star in the thread's header and it will turn yellow; click again to turn it off. To edit your profile, click on the gear.
The Wall has a powerful search engine that will go all the way back to 2002. Use "quotation marks" around multiple-word searches. RIGHT-CLICK on the results and choose Open Link In New Window so you'll be able to get back to your results. Happy searching!
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Pex spacing for under floor radiant (joist bay)
I returned from vacation to find that the HVAC subcontractor had installed 1/2 pex at 16" o.c. (One run per joist bay) for our hydronic radiant system. He claims this is standard but everything I've been able to find suggests 12" max and 8" being typical for this sort of install. We're in Chicago (relatively cold winters).