diff --git a/soft/thermostat/src/mainwindow.cpp b/soft/thermostat/src/mainwindow.cpp
index aaed3cb..9c9429a 100644
--- a/soft/thermostat/src/mainwindow.cpp
+++ b/soft/thermostat/src/mainwindow.cpp
@@ -69,6 +69,11 @@ MainWindow::MainWindow(QWidget *parent) :
 						QSizePolicy::MinimumExpanding,
 						QSizePolicy::PushButton);
 
+	QFont font = menu_btn->font();
+	font.setPointSize(18);
+	menu_btn->setFont(font);
+	m_state_btn.setFont(font);
+
 	menu_btn->setSizePolicy(*szPolicy);
 	m_state_btn.setSizePolicy(*szPolicy);
 
diff --git a/soft/thermostat/src/menu_dlg.cpp b/soft/thermostat/src/menu_dlg.cpp
index 25ad672..ae8bc6b 100644
--- a/soft/thermostat/src/menu_dlg.cpp
+++ b/soft/thermostat/src/menu_dlg.cpp
@@ -48,6 +48,14 @@ MenuDlg::MenuDlg(QWidget *parent, Qt::WindowFlags f) :
 	exit_btn->setSizePolicy(*szPolicy);
 	back_btn->setSizePolicy(*szPolicy);
 
+	QFont font = holiday_btn->font();
+	font.setPointSize(18);
+	holiday_btn->setFont(font);
+	save_cfg_btn->setFont(font);
+	load_cfg_btn->setFont(font);
+	exit_btn->setFont(font);
+	back_btn->setFont(font);
+
 	this->setLayout(mainLayout);
 }
 
diff --git a/soft/thermostat/src/zoneitem.cpp b/soft/thermostat/src/zoneitem.cpp
index 50b0d54..cb114e5 100644
--- a/soft/thermostat/src/zoneitem.cpp
+++ b/soft/thermostat/src/zoneitem.cpp
@@ -21,6 +21,10 @@ ZoneItem::ZoneItem(const QString &zoneName, QWidget *parent, Qt::WindowFlags f)
 	m_name = zoneName;
 	m_heating_on = false;
 
+	QFont font = this->font();
+	font.setPointSize(18);
+	this->setFont(font);
+
 	this->setText(zoneName);
 
 	m_temperature_value = FORCE_OFF;