diff --git a/homeassistant/components/nibe_heatpump/number.py b/homeassistant/components/nibe_heatpump/number.py
index 606588f7142..dda0b652638 100644
--- a/homeassistant/components/nibe_heatpump/number.py
+++ b/homeassistant/components/nibe_heatpump/number.py
@@ -54,6 +54,7 @@ class Number(CoilEntity, NumberEntity):
             self._attr_native_min_value = float(coil.min)
             self._attr_native_max_value = float(coil.max)
 
+        self._attr_native_step = 1 / coil.factor
         self._attr_native_unit_of_measurement = coil.unit
         self._attr_native_value = None