Kenny Greene
Joined on October 1, 2009
Last Post on July 11, 2010
Recent Posts
No air space required
@ July 11, 2010 6:24 AM in Pex Tubing and Spray Foam Insulation
No air space is required if using aluminum plates. foam has not melted anything in my installations. Foaming an entire house next week that uses Uponor Joist Trak with HEPex tubing.The failed exhaust
@ November 20, 2009 5:07 AM in Condensing Boilers & PVC Exhaust
The failed exhaust pipes were on A.O Smith Cyclone water heaters. The manufacturer approves pvc for the exhaust, The exhaust 90's that failed actually come with the heater when purchased. The exhaust and intake were checked for restriction.PVC Vent Failure Hotel
@ November 19, 2009 9:11 AM in Condensing Boilers & PVC Exhaust
Sorry for the late post regarding this subject. I have attached a picture of the 4" exhaust vent 90 that failed after 8 years on a commercial water heater. Two heaters had this problem. The main issue here is the fact that the equipment room is below occupied hotel rooms. If you use pvc for venting, make sure that it is inspected annually.We have used Tjernlund
@ October 1, 2009 7:27 AM in Combustion Air System
with good success in commercial applications. The company also has good support. The combustion air makeup can be viewed athttp://www.tjernlund.com/Tjernlund_8500402.pdf
