From f701b411fde566da69cdab14795a3d85a3c38b65 Mon Sep 17 00:00:00 2001
From: Chris Mackey <chris@mackeyarchitecture.com>
Date: Mon, 4 Mar 2019 14:59:30 -0500
Subject: [PATCH] feat(datatype): Add Effective Radiant Field

---
 ladybug/datatype/energyflux.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ladybug/datatype/energyflux.py b/ladybug/datatype/energyflux.py
index 5fcbf718..be2d136b 100644
--- a/ladybug/datatype/energyflux.py
+++ b/ladybug/datatype/energyflux.py
@@ -72,9 +72,14 @@ def isEnergyFlux(self):
 
 
 class MetabolicRate(EnergyFlux):
+    _min = 0
     _abbreviation = 'MetR'
 
 
+class EffectiveRadiantField(EnergyFlux):
+    _abbreviation = 'ERF'
+
+
 class Irradiance(EnergyFlux):
     _min = 0
     _abbreviation = 'Qsolar'