diff --git a/esphome/components/esp32/preferences.cpp b/esphome/components/esp32/preferences.cpp
index aa03c5acc7..057fefc48c 100644
--- a/esphome/components/esp32/preferences.cpp
+++ b/esphome/components/esp32/preferences.cpp
@@ -36,6 +36,7 @@ class ESP32PreferenceBackend : public ESPPreferenceBackend {
     save.key = key;
     save.data.assign(data, data + len);
     s_pending_save.emplace_back(save);
+    ESP_LOGVV(TAG, "s_pending_save: key: %s, len: %d", key.c_str(), len);
     return true;
   }
   bool load(uint8_t *data, size_t len) override {
@@ -65,6 +66,8 @@ class ESP32PreferenceBackend : public ESPPreferenceBackend {
     if (err != 0) {
       ESP_LOGV(TAG, "nvs_get_blob('%s') failed: %s", key.c_str(), esp_err_to_name(err));
       return false;
+    } else {
+      ESP_LOGVV(TAG, "nvs_get_blob: key: %s, len: %d", key.c_str(), len);
     }
     return true;
   }
@@ -73,7 +76,6 @@ class ESP32PreferenceBackend : public ESPPreferenceBackend {
 class ESP32Preferences : public ESPPreferences {
  public:
   uint32_t nvs_handle;
-  uint32_t current_offset = 0;
 
   void open() {
     nvs_flash_init();
@@ -97,12 +99,9 @@ class ESP32Preferences : public ESPPreferences {
   ESPPreferenceObject make_preference(size_t length, uint32_t type) override {
     auto *pref = new ESP32PreferenceBackend();  // NOLINT(cppcoreguidelines-owning-memory)
     pref->nvs_handle = nvs_handle;
-    current_offset += length;
 
-    uint32_t keyval = current_offset ^ type;
-    char keybuf[16];
-    snprintf(keybuf, sizeof(keybuf), "%d", keyval);
-    pref->key = keybuf;  // copied to std::string
+    uint32_t keyval = type;
+    pref->key = str_sprintf("%u", keyval);
 
     return ESPPreferenceObject(pref);
   }
@@ -121,6 +120,7 @@ class ESP32Preferences : public ESPPreferences {
       ESP_LOGVV(TAG, "Checking if NVS data %s has changed", save.key.c_str());
       if (is_changed(nvs_handle, save)) {
         esp_err_t err = nvs_set_blob(nvs_handle, save.key.c_str(), save.data.data(), save.data.size());
+        ESP_LOGV(TAG, "sync: key: %s, len: %d", save.key.c_str(), save.data.size());
         if (err != 0) {
           ESP_LOGV(TAG, "nvs_set_blob('%s', len=%u) failed: %s", save.key.c_str(), save.data.size(),
                    esp_err_to_name(err));
diff --git a/esphome/components/number/automation.cpp b/esphome/components/number/automation.cpp
index c75d272660..cadc6f54f6 100644
--- a/esphome/components/number/automation.cpp
+++ b/esphome/components/number/automation.cpp
@@ -6,8 +6,17 @@ namespace number {
 
 static const char *const TAG = "number.automation";
 
+union convert {
+  float from;
+  uint32_t to;
+};
+
 void ValueRangeTrigger::setup() {
-  this->rtc_ = global_preferences->make_preference<bool>(this->parent_->get_object_id_hash());
+  float local_min = this->min_.value(0.0);
+  float local_max = this->max_.value(0.0);
+  convert hash = {.from = (local_max - local_min)};
+  uint32_t myhash = hash.to ^ this->parent_->get_object_id_hash();
+  this->rtc_ = global_preferences->make_preference<bool>(myhash);
   bool initial_state;
   if (this->rtc_.load(&initial_state)) {
     this->previous_in_range_ = initial_state;