diff --git a/src/hwmon-temp/HwmonTempMain.cpp b/src/hwmon-temp/HwmonTempMain.cpp
index 1ec199f..0074900 100644
--- a/src/hwmon-temp/HwmonTempMain.cpp
+++ b/src/hwmon-temp/HwmonTempMain.cpp
@@ -26,6 +26,8 @@
 #include <boost/asio/steady_timer.hpp>
 #include <boost/container/flat_map.hpp>
 #include <boost/container/flat_set.hpp>
+#include <phosphor-logging/lg2.hpp>
+#include <phosphor-logging/lg2/flags.hpp>
 #include <sdbusplus/asio/connection.hpp>
 #include <sdbusplus/asio/object_server.hpp>
 #include <sdbusplus/bus.hpp>
@@ -40,8 +42,6 @@
 #include <cstdint>
 #include <filesystem>
 #include <functional>
-#include <ios>
-#include <iostream>
 #include <memory>
 #include <optional>
 #include <regex>
@@ -223,7 +223,7 @@
             if ((std::get_if<uint64_t>(&busCfg->second) == nullptr) ||
                 (std::get_if<uint64_t>(&addrCfg->second) == nullptr))
             {
-                std::cerr << path.str << " Bus or Address invalid\n";
+                lg2::error("'{PATH}' Bus or Address invalid", "PATH", path.str);
                 continue;
             }
 
@@ -253,9 +253,10 @@
             auto [it, inserted] = configMap.emplace(key, std::move(val));
             if (!inserted)
             {
-                std::cerr << path.str << ": ignoring duplicate entry for {"
-                          << key.bus << ", 0x" << std::hex << key.addr
-                          << std::dec << "}\n";
+                lg2::error(
+                    "'{PATH}': ignoring duplicate entry for '{BUS}', '{ADDR}'",
+                    "PATH", path.str, "BUS", key.bus, "ADDR", lg2::hex,
+                    key.addr);
             }
         }
     }
@@ -315,8 +316,8 @@
                     device = std::filesystem::canonical(directory, ec);
                     if (ec)
                     {
-                        std::cerr << "Fail to find device in path [" << pathStr
-                                  << "]\n";
+                        lg2::error("Fail to find device in '{PATH}'", "PATH",
+                                   pathStr);
                         continue;
                     }
                     deviceName = device.parent_path().stem();
@@ -327,8 +328,8 @@
                         std::filesystem::canonical(directory / "device", ec);
                     if (ec)
                     {
-                        std::cerr << "Fail to find device in path [" << pathStr
-                                  << "]\n";
+                        lg2::error("Fail to find device in '{PATH}'", "PATH",
+                                   pathStr);
                         continue;
                     }
                     deviceName = device.stem();
@@ -389,8 +390,9 @@
 
                 if (findSensorName == baseConfigMap.end())
                 {
-                    std::cerr << "could not determine configuration name for "
-                              << deviceName << "\n";
+                    lg2::error(
+                        "could not determine configuration name for '{NAME}'",
+                        "NAME", deviceName);
                     continue;
                 }
                 std::string sensorName =
@@ -423,8 +425,9 @@
                 if (!parseThresholdsFromConfig(sensorData, sensorThresholds,
                                                nullptr, &index))
                 {
-                    std::cerr << "error populating thresholds for "
-                              << sensorName << " index " << index << "\n";
+                    lg2::error("error populating thresholds for "
+                               "'{NAME}', index: '{INDEX}'",
+                               "NAME", sensorName, "INDEX", index);
                 }
 
                 float pollRate = getPollRate(baseConfigMap, pollRateDefault);
@@ -495,9 +498,9 @@
                         if (!parseThresholdsFromConfig(sensorData, thresholds,
                                                        nullptr, &index))
                         {
-                            std::cerr
-                                << "error populating thresholds for "
-                                << sensorName << " index " << index << "\n";
+                            lg2::error("error populating thresholds for "
+                                       "'{NAME}', index: '{INDEX}'",
+                                       "NAME", sensorName, "INDEX", index);
                         }
 
                         auto& sensor = sensors[sensorName];
@@ -546,7 +549,7 @@
 {
     if (message.is_method_error())
     {
-        std::cerr << "interfacesRemoved callback method error\n";
+        lg2::error("interfacesRemoved callback method error");
         return;
     }
 
@@ -624,7 +627,7 @@
         [&](sdbusplus::message_t& message) {
             if (message.is_method_error())
             {
-                std::cerr << "callback method error\n";
+                lg2::error("callback method error");
                 return;
             }
             sensorsChanged->insert(message.get_path());
@@ -639,7 +642,7 @@
                 }
                 if (ec)
                 {
-                    std::cerr << "timer error\n";
+                    lg2::error("timer error");
                     return;
                 }
                 createSensors(io, objectServer, sensors, systemBus,
diff --git a/src/hwmon-temp/HwmonTempSensor.cpp b/src/hwmon-temp/HwmonTempSensor.cpp
index 9ebd6c9..2957b09 100644
--- a/src/hwmon-temp/HwmonTempSensor.cpp
+++ b/src/hwmon-temp/HwmonTempSensor.cpp
@@ -26,13 +26,13 @@
 #include <boost/asio/error.hpp>
 #include <boost/asio/io_context.hpp>
 #include <boost/asio/random_access_file.hpp>
+#include <phosphor-logging/lg2.hpp>
 #include <sdbusplus/asio/connection.hpp>
 #include <sdbusplus/asio/object_server.hpp>
 
 #include <charconv>
 #include <chrono>
 #include <cstddef>
-#include <iostream>
 #include <limits>
 #include <memory>
 #include <string>
@@ -177,8 +177,8 @@
     if ((err == boost::system::errc::bad_file_descriptor) ||
         (err == boost::asio::error::misc_errors::not_found))
     {
-        std::cerr << "Hwmon temp sensor " << name << " removed " << path
-                  << "\n";
+        lg2::error("Hwmon temp sensor '{NAME}' removed '{PATH}'", "NAME", name,
+                   "PATH", path);
         return; // we're being destroyed
     }