diff --git a/co2calculator/data/conversion_factors_heating.csv b/co2calculator/data/conversion_factors_heating.csv
index c27fd28..fd0f71a 100644
--- a/co2calculator/data/conversion_factors_heating.csv
+++ b/co2calculator/data/conversion_factors_heating.csv
@@ -2,6 +2,6 @@
 0,oil,l,10.6
 1,liquid gas,kg,14.1
 2,coal,kg,6.0
-3,wood pellet,kg,5.4
+3,wood pellets,kg,5.4
 4,wood chips,kg,5.2
 5,gas,m^3,10.8
diff --git a/tests/data/conversion_factors_heating.csv b/tests/data/conversion_factors_heating.csv
new file mode 100644
index 0000000..addc42f
--- /dev/null
+++ b/tests/data/conversion_factors_heating.csv
@@ -0,0 +1,7 @@
+,fuel_type,unit,conversion_value
+0,oil,l,10.6
+1,liquid gas,kg,14.1
+2,coal,kg,6.0
+3,wood pellets,kg,5.4
+4,wood chips,kg,5.2
+5,gas,m^3,10.8
diff --git a/tests/data/emission_factors_heating.csv b/tests/data/emission_factors_heating.csv
index ae9e1a8..3749144 100644
--- a/tests/data/emission_factors_heating.csv
+++ b/tests/data/emission_factors_heating.csv
@@ -1,7 +1,7 @@
 ,country_code,category,source,name,unit,fuel_type,co2e_unit,co2e
 0,global,heating,"UK, Department for Business, Energy & Industrial Strategy",coal (domestic),kWh,coal,kg/kWh,0.35
 1,global,heating,"UK, Department for Business, Energy & Industrial Strategy",natural gas,kWh,gas,kg/kWh,0.18
-2,global,heating,"UK, Department for Business, Energy & Industrial Strategy",LPG,kWh,liquid_gas,kg/kWh,0.21
+2,global,heating,"UK, Department for Business, Energy & Industrial Strategy",LPG,kWh,liquid gas,kg/kWh,0.21
 3,global,heating,"UK, Department for Business, Energy & Industrial Strategy",fuel oil,kWh,oil,kg/kWh,0.27
 4,global,heating,"UK, Department for Business, Energy & Industrial Strategy",wood pellets,kWh,wood pellets,kg/kWh,0.01074
 5,global,heating,"UK, Department for Business, Energy & Industrial Strategy",wood chips,kWh,wood chips,kg/kWh,0.01074