diff --git a/src/ir_Haier.cpp b/src/ir_Haier.cpp
index bc919efe9..00e84c03e 100644
--- a/src/ir_Haier.cpp
+++ b/src/ir_Haier.cpp
@@ -1578,7 +1578,7 @@ void IRHaierAC160::setMode(uint8_t mode) {
     default:
       setMode(kHaierAcYrw02Auto);  // Unexpected, default to auto mode.
   }
-  _.AuxHeat = (_.Mode == kHaierAcYrw02Heat);  // Set this bit only if heat mode.
+  _.AuxHeating = (_.Mode == kHaierAcYrw02Heat);  // Set only if heat mode.
 }
 
 /// Get the operating mode setting of the A/C.
@@ -1751,6 +1751,17 @@ void IRHaierAC160::setQuiet(const bool on) {
   }
 }
 
+/// Get the value of the Aux Heating setting.
+/// @return true, the setting is on. false, the setting is off.
+bool IRHaierAC160::getAuxHeating(void) const { return _.AuxHeating; }
+
+/// Change the Aux Heating setting.
+/// @param[in] on true, the setting is on. false, the setting is off.
+void IRHaierAC160::setAuxHeating(const bool on) {
+  _.Button = kHaierAc160ButtonAuxHeating;
+  _.AuxHeating = on;
+}
+
 /// Get the value of the current Light toggle setting.
 /// @return true, the setting is on. false, the setting is off.
 /// @note This setting seems to be controlled just by the button setting.
@@ -2071,6 +2082,9 @@ String IRHaierAC160::toString(void) const {
     case kHaierAc160ButtonLight:
       result += kLightStr;
       break;
+    case kHaierAc160ButtonAuxHeating:
+      result += kHeatingStr;
+      break;
     case kHaierAcYrw02ButtonCFAB:
       result += kCelsiusFahrenheitStr;
       break;
@@ -2137,6 +2151,7 @@ String IRHaierAC160::toString(void) const {
                               tmode != kHaierAcYrw02OnTimer) ?
       minsToString(getOffTimer()) : kOffStr, kOffTimerStr);
   result += addBoolToString(_.Lock, kLockStr);
+  result += addBoolToString(_.AuxHeating, kHeatingStr);
   return result;
 }
 // End of IRHaierAC160 class.
diff --git a/src/ir_Haier.h b/src/ir_Haier.h
index 9ea205c5c..4f33a0283 100644
--- a/src/ir_Haier.h
+++ b/src/ir_Haier.h
@@ -195,6 +195,7 @@ const uint8_t kHaierAcYrw02ButtonSleep =    0b01011;
 const uint8_t kHaierAcYrw02ButtonTimer =    0b10000;
 const uint8_t kHaierAcYrw02ButtonLock =     0b10100;
 const uint8_t kHaierAc160ButtonLight =      0b10101;
+const uint8_t kHaierAc160ButtonAuxHeating = 0b10110;
 const uint8_t kHaierAc160ButtonClean =      0b11001;
 const uint8_t kHaierAcYrw02ButtonCFAB =     0b11010;
 
@@ -294,7 +295,7 @@ union HaierAc160Protocol{
     // Byte 4
     uint8_t             :6;
     uint8_t Power       :1;
-    uint8_t AuxHeat     :1;
+    uint8_t AuxHeating  :1;
     // Byte 5
     uint8_t OffTimerHrs :5;
     uint8_t Fan         :3;
@@ -604,6 +605,8 @@ class IRHaierAC160 {
   void setTurbo(const bool on);
   bool getQuiet(void) const;
   void setQuiet(const bool on);
+  bool getAuxHeating(void) const;
+  void setAuxHeating(const bool on);
 
   uint8_t getSwingV(void) const;
   void setSwingV(const uint8_t pos);
diff --git a/test/IRac_test.cpp b/test/IRac_test.cpp
index ce89d0d23..b0475e023 100644
--- a/test/IRac_test.cpp
+++ b/test/IRac_test.cpp
@@ -828,7 +828,7 @@ TEST(TestIRac, Haier160) {
       "Power: On, Button: 5 (Power), Mode: 1 (Cool), Temp: 23C, "
       "Fan: 2 (Medium), Turbo: On, Quiet: Off, Swing(V): 4 (High), Sleep: On, "
       "Clean: On, Timer Mode: 0 (N/A), On Timer: Off, Off Timer: Off, "
-      "Lock: Off";
+      "Lock: Off, Heating: Off";
   ac.begin();
   irac.haier160(&ac,
                 true,                                    // Power
diff --git a/test/ir_Haier_test.cpp b/test/ir_Haier_test.cpp
index dcc60961a..ab9a8c02d 100644
--- a/test/ir_Haier_test.cpp
+++ b/test/ir_Haier_test.cpp
@@ -1590,7 +1590,8 @@ TEST(TestDecodeHaierAC160, RealExample) {
   EXPECT_EQ(
       "Power: On, Button: 5 (Power), Mode: 1 (Cool), Temp: 26C, Fan: 3 (Low), "
       "Turbo: Off, Quiet: Off, Swing(V): 12 (Auto), Sleep: Off, Clean: Off, "
-      "Timer Mode: 0 (N/A), On Timer: Off, Off Timer: Off, Lock: Off",
+      "Timer Mode: 0 (N/A), On Timer: Off, Off Timer: Off, Lock: Off, "
+      "Heating: Off",
       IRAcUtils::resultAcToString(&irsend.capture));
   stdAc::state_t result, prev;
   ASSERT_TRUE(IRAcUtils::decodeToState(&irsend.capture, &result, &prev));
@@ -1617,7 +1618,8 @@ TEST(TestDecodeHaierAC160, SyntheticExample) {
   EXPECT_EQ(
       "Power: On, Button: 5 (Power), Mode: 1 (Cool), Temp: 26C, Fan: 3 (Low), "
       "Turbo: Off, Quiet: Off, Swing(V): 12 (Auto), Sleep: Off, Clean: Off, "
-      "Timer Mode: 0 (N/A), On Timer: Off, Off Timer: Off, Lock: Off",
+      "Timer Mode: 0 (N/A), On Timer: Off, Off Timer: Off, Lock: Off, "
+      "Heating: Off",
       IRAcUtils::resultAcToString(&irsend.capture));
   stdAc::state_t result, prev;
   ASSERT_TRUE(IRAcUtils::decodeToState(&irsend.capture, &result, &prev));
@@ -1655,15 +1657,15 @@ TEST(TestHaierAC160Class, OperatingMode) {
 
   ac.setMode(kHaierAcYrw02Cool);
   EXPECT_EQ(kHaierAcYrw02Cool, ac.getMode());
-  EXPECT_FALSE(ac._.AuxHeat);
+  EXPECT_FALSE(ac.getAuxHeating());
 
   ac.setMode(kHaierAcYrw02Heat);
   EXPECT_EQ(kHaierAcYrw02Heat, ac.getMode());
-  EXPECT_TRUE(ac._.AuxHeat);
+  EXPECT_TRUE(ac.getAuxHeating());
 
   ac.setMode(kHaierAcYrw02Fan);
   EXPECT_EQ(kHaierAcYrw02Fan, ac.getMode());
-  EXPECT_FALSE(ac._.AuxHeat);
+  EXPECT_FALSE(ac.getAuxHeating());
 
   ac.setMode(kHaierAcYrw02Dry);
   EXPECT_EQ(kHaierAcYrw02Dry, ac.getMode());
@@ -1791,7 +1793,7 @@ TEST(TestHaierAC160Class, CleanMode) {
       "Power: On, Button: 25 (Clean), Mode: 1 (Cool), Temp: 26C, "
       "Fan: 3 (Low), Turbo: Off, Quiet: Off, Swing(V): 12 (Auto), "
       "Sleep: Off, Clean: On, Timer Mode: 0 (N/A), "
-      "On Timer: Off, Off Timer: Off, Lock: Off",
+      "On Timer: Off, Off Timer: Off, Lock: Off, Heating: Off",
       ac.toString());
   // No clean set.
   // https://docs.google.com/spreadsheets/d/1RNJ7esbArS5fy1lmiM-i1PekXSNojCMad4WuuyunsC8/edit#gid=2048081808&range=FR4
@@ -1804,7 +1806,7 @@ TEST(TestHaierAC160Class, CleanMode) {
       "Power: On, Button: 5 (Power), Mode: 1 (Cool), Temp: 26C, "
       "Fan: 3 (Low), Turbo: Off, Quiet: Off, Swing(V): 12 (Auto), "
       "Sleep: Off, Clean: Off, Timer Mode: 0 (N/A), "
-      "On Timer: Off, Off Timer: Off, Lock: Off",
+      "On Timer: Off, Off Timer: Off, Lock: Off, Heating: Off",
       ac.toString());
 }
 
@@ -1974,6 +1976,38 @@ TEST(TestHaierAC160Class, Light) {
       "Power: On, Button: 21 (Light), Mode: 1 (Cool), Temp: 26C, "
       "Fan: 3 (Low), Turbo: Off, Quiet: Off, Swing(V): 12 (Auto), "
       "Sleep: Off, Clean: Off, Timer Mode: 0 (N/A), "
-      "On Timer: Off, Off Timer: Off, Lock: Off",
+      "On Timer: Off, Off Timer: Off, Lock: Off, Heating: Off",
+      ac.toString());
+}
+
+TEST(TestHaierAC160Class, AuxHeating) {
+  IRHaierAC160 ac(kGpioUnused);
+  ac.begin();
+
+  ac.setAuxHeating(true);
+  EXPECT_TRUE(ac.getAuxHeating());
+  EXPECT_EQ(kHaierAc160ButtonAuxHeating, ac.getButton());
+
+  ac.setButton(kHaierAcYrw02ButtonTempUp);
+  ac.setAuxHeating(false);
+  EXPECT_FALSE(ac.getAuxHeating());
+  EXPECT_EQ(kHaierAc160ButtonAuxHeating, ac.getButton());
+
+  ac.setAuxHeating(true);
+  EXPECT_TRUE(ac.getAuxHeating());
+  EXPECT_EQ(kHaierAc160ButtonAuxHeating, ac.getButton());
+
+  // https://docs.google.com/spreadsheets/d/1RNJ7esbArS5fy1lmiM-i1PekXSNojCMad4WuuyunsC8/edit#gid=2048081808&range=A124:W143
+  const uint8_t aux_button_off[kHaierAC160StateLength] = {
+      0xA6, 0xAC, 0x00, 0x00, 0x40, 0x60, 0x00, 0x80, 0x00, 0x00,
+      0x00, 0x00, 0x16, 0x88, 0xB5, 0x00, 0x60, 0x00, 0x00, 0x15};
+  ac.setRaw(aux_button_off);
+  EXPECT_FALSE(ac.getAuxHeating());
+  EXPECT_EQ(kHaierAc160ButtonAuxHeating, ac.getButton());
+  EXPECT_EQ(
+      "Power: On, Button: 22 (Heating), Mode: 4 (Heat), Temp: 26C, "
+      "Fan: 3 (Low), Turbo: Off, Quiet: Off, Swing(V): 12 (Auto), "
+      "Sleep: Off, Clean: Off, Timer Mode: 0 (N/A), "
+      "On Timer: Off, Off Timer: Off, Lock: Off, Heating: Off",
       ac.toString());
 }