diff --git a/src/widgets/thermowidget.h b/src/widgets/thermowidget.h
--- a/src/widgets/thermowidget.h
+++ b/src/widgets/thermowidget.h
@@ -56,8 +56,10 @@
     QString m_currentTemperatureTextFromEditor = QString("-");
     QString m_name;
     QTimer *m_cursorTimer = nullptr;
+    QTimer *m_tempChangedTimer = nullptr;
     bool m_paintCursor = false;
     int m_cursorPos = 0;
     double m_currentTemperature;
     double m_targetTemperature;
+    void resetTimer();
 };
diff --git a/src/widgets/thermowidget.cpp b/src/widgets/thermowidget.cpp
--- a/src/widgets/thermowidget.cpp
+++ b/src/widgets/thermowidget.cpp
@@ -31,6 +31,7 @@
     QwtDial(parent)
     , m_targetTemperatureNeedle(new QwtDialSimpleNeedle(QwtDialSimpleNeedle::Arrow, Qt::red, Qt::darkRed))
     , m_name(name)
+    , m_tempChangedTimer(new QTimer())
     , m_currentTemperature(0)
     , m_targetTemperature(0)
 {
@@ -46,6 +47,11 @@
         m_paintCursor = !m_paintCursor;
         update();
     });
+
+    m_tempChangedTimer->setSingleShot(true);
+    connect(m_tempChangedTimer, &QTimer::timeout, this, [this] {
+        emit targetTemperatureChanged(m_targetTemperature);
+    });
 }
 
 void ThermoWidget::keyPressEvent(QKeyEvent *event)
@@ -136,7 +142,7 @@
 
     if (m_targetTemperature != m_currentTemperatureTextFromEditor.toInt()) {
         m_targetTemperature = m_currentTemperatureTextFromEditor.toInt();
-        emit targetTemperatureChanged(m_targetTemperature);
+        resetTimer();
         update();
         event->accept();
     }
@@ -160,7 +166,7 @@
 
     if (m_targetTemperature != m_currentTemperatureTextFromEditor.toInt()) {
         m_targetTemperature = m_currentTemperatureTextFromEditor.toInt();
-        emit targetTemperatureChanged(m_targetTemperature);
+        resetTimer();
         update();
     }
     event->accept();
@@ -170,7 +176,7 @@
 {
     if (m_targetTemperature != m_currentTemperatureTextFromEditor.toInt()) {
         m_targetTemperature = m_currentTemperatureTextFromEditor.toInt();
-        emit targetTemperatureChanged(m_targetTemperature);
+        resetTimer();
         event->accept();
     }
     m_cursorTimer->stop();
@@ -271,7 +277,12 @@
     if (m_targetTemperature != temperature) {
         m_currentTemperatureTextFromEditor = QString::number(temperature);
         m_targetTemperature = temperature;
-        emit targetTemperatureChanged(m_targetTemperature);
+        resetTimer();
         update();
     }
 }
+
+void ThermoWidget::resetTimer()
+{
+    m_tempChangedTimer->start(500);
+}