diff --git a/openstudiocore/src/model/SiteWaterMainsTemperature.cpp b/openstudiocore/src/model/SiteWaterMainsTemperature.cpp
index c892828db73..404e51a9630 100644
--- a/openstudiocore/src/model/SiteWaterMainsTemperature.cpp
+++ b/openstudiocore/src/model/SiteWaterMainsTemperature.cpp
@@ -279,6 +279,7 @@ SiteWaterMainsTemperature::SiteWaterMainsTemperature(const Model& model)
   : ModelObject(SiteWaterMainsTemperature::iddObjectType(),model)
 {
   OS_ASSERT(getImpl<detail::SiteWaterMainsTemperature_Impl>());
+  // TODO: switch this to CorrelationFromWeatherFile to match E+. Can be done at OS 3.0
   bool ok = setCalculationMethod("Schedule");
   OS_ASSERT(ok);
 }