An Assessment of the Performance of Rigid Polyurethane Foam Insulation for Use in Residential Water Heaters Produced with SNAP-Approved Non-ODP Blowing Agents

In this paper, we have produced laboratory and end-use data for the major SNAP approved blowing agents available for use in rigid polyurethane insulation foams. These include HFC-245fa, HFC-134a, and cyclopentane. This data includes a comparison of physical testing results from laboratory panels and data from EF testing and stand-by loss testing (Bayer SBLT) of heaters produced with these candidates. Specific results include data on k-factor, hot and cold dimensional stability, EF and heat-loss data from the Bayer SBLT.