No doubt this will help slow heat transfer but it doesn't actually stop heat transfer. Also when you put a reflective product up against the heat source you no longer have reflection. You now have direct backside conduction so all that remains to slow the heat transfer is the thin layer of fiberglass. The tested R-Value in a lab is irrelevant to field results unless the testing apparatus simulates heat transfer via backside conduction. Also compressing this material will reduce the R-value.
No doubt this will help slow heat transfer but it doesn't actually stop heat transfer. Also when you put a reflective product up against the heat source you no longer have reflection. You now have direct backside conduction so all that remains to slow the heat transfer is the thin layer of fiberglass. The tested R-Value in a lab is irrelevant to field results unless the testing apparatus simulates heat transfer via backside conduction. Also compressing this material will reduce the R-value.
tsimshianman 3 years ago
What was the R-Value of the water heater and what's the R-value of the blanket?
rkellyforums 3 years ago