diff --git a/esphome/nspanel_esphome_core.yaml b/esphome/nspanel_esphome_core.yaml
index a602e6a..b9d31e8 100644
--- a/esphome/nspanel_esphome_core.yaml
+++ b/esphome/nspanel_esphome_core.yaml
@@ -3157,10 +3157,16 @@ script:
             size_t total_heap_size = heap_caps_get_total_size(MALLOC_CAP_DEFAULT);
             size_t free_heap_size = esp_get_free_heap_size();
             #endif
-            if (total_heap_size != 0)
-              ESP_LOGI(TAG, "  Heap:        %zu bytes (%d%%)", free_heap_size,
+            if (total_heap_size != 0) {
+              std::string numStr = std::to_string(free_heap_size);
+              int insertPosition = numStr.length() - 3;
+              while (insertPosition > 0) {
+                  numStr.insert(insertPosition, " ");
+                  insertPosition -= 3;
+              }
+              ESP_LOGI(TAG, "  Free heap:   %s bytes (%d%%)", numStr.c_str(),
                       int(round(((float)free_heap_size / total_heap_size) * 100.0f)));
-
+            }
             // Report UART
             ESP_LOGI(TAG, "UART:");
             ESP_LOGI(TAG, "  Baud rate:   %" PRIu32 " bps", tf_uart->get_baud_rate());