diff --git a/esphome/components/heatpumpir/climate.py b/esphome/components/heatpumpir/climate.py
index 36e56aa5da..592e03f959 100644
--- a/esphome/components/heatpumpir/climate.py
+++ b/esphome/components/heatpumpir/climate.py
@@ -30,6 +30,7 @@ PROTOCOLS = {
     "gree": Protocol.PROTOCOL_GREE,
     "greeya": Protocol.PROTOCOL_GREEYAA,
     "greeyan": Protocol.PROTOCOL_GREEYAN,
+    "greeyac": Protocol.PROTOCOL_GREEYAC,
     "hisense_aud": Protocol.PROTOCOL_HISENSE_AUD,
     "hitachi": Protocol.PROTOCOL_HITACHI,
     "hyundai": Protocol.PROTOCOL_HYUNDAI,
@@ -111,4 +112,6 @@ def to_code(config):
     cg.add(var.set_max_temperature(config[CONF_MIN_TEMPERATURE]))
     cg.add(var.set_min_temperature(config[CONF_MAX_TEMPERATURE]))
 
-    cg.add_library("tonia/HeatpumpIR", "1.0.15")
+    # PIO isn't updating releases, so referencing the release tag directly. See:
+    # https://github.com/ToniA/arduino-heatpumpir/commit/0948c619d86407a4e50e8db2f3c193e0576c86fd
+    cg.add_library("", "", "https://github.com/ToniA/arduino-heatpumpir.git#1.0.18")
diff --git a/esphome/components/heatpumpir/heatpumpir.cpp b/esphome/components/heatpumpir/heatpumpir.cpp
index 8d9fc962c0..ad3731b955 100644
--- a/esphome/components/heatpumpir/heatpumpir.cpp
+++ b/esphome/components/heatpumpir/heatpumpir.cpp
@@ -25,6 +25,7 @@ const std::map<Protocol, std::function<HeatpumpIR *()>> PROTOCOL_CONSTRUCTOR_MAP
     {PROTOCOL_GREE, []() { return new GreeGenericHeatpumpIR(); }},                           // NOLINT
     {PROTOCOL_GREEYAA, []() { return new GreeYAAHeatpumpIR(); }},                            // NOLINT
     {PROTOCOL_GREEYAN, []() { return new GreeYANHeatpumpIR(); }},                            // NOLINT
+    {PROTOCOL_GREEYAC, []() { return new GreeYACHeatpumpIR(); }},                            // NOLINT
     {PROTOCOL_HISENSE_AUD, []() { return new HisenseHeatpumpIR(); }},                        // NOLINT
     {PROTOCOL_HITACHI, []() { return new HitachiHeatpumpIR(); }},                            // NOLINT
     {PROTOCOL_HYUNDAI, []() { return new HyundaiHeatpumpIR(); }},                            // NOLINT
@@ -61,6 +62,19 @@ void HeatpumpIRClimate::setup() {
   }
   this->heatpump_ir_ = protocol_constructor->second();
   climate_ir::ClimateIR::setup();
+  if (this->sensor_) {
+    this->sensor_->add_on_state_callback([this](float state) {
+      this->current_temperature = state;
+
+      IRSenderESPHome esp_sender(this->transmitter_);
+      this->heatpump_ir_->send(esp_sender, uint8_t(lround(this->current_temperature + 0.5)));
+
+      // current temperature changed, publish state
+      this->publish_state();
+    });
+    this->current_temperature = this->sensor_->state;
+  } else
+    this->current_temperature = NAN;
 }
 
 void HeatpumpIRClimate::transmit_state() {
@@ -171,8 +185,7 @@ void HeatpumpIRClimate::transmit_state() {
 
   temperature_cmd = (uint8_t) clamp(this->target_temperature, this->min_temperature_, this->max_temperature_);
 
-  IRSenderESPHome esp_sender(0, this->transmitter_);
-
+  IRSenderESPHome esp_sender(this->transmitter_);
   heatpump_ir_->send(esp_sender, power_mode_cmd, operating_mode_cmd, fan_speed_cmd, temperature_cmd, swing_v_cmd,
                      swing_h_cmd);
 }
diff --git a/esphome/components/heatpumpir/heatpumpir.h b/esphome/components/heatpumpir/heatpumpir.h
index e2d2b45dc4..18d9b5040f 100644
--- a/esphome/components/heatpumpir/heatpumpir.h
+++ b/esphome/components/heatpumpir/heatpumpir.h
@@ -25,6 +25,7 @@ enum Protocol {
   PROTOCOL_GREE,
   PROTOCOL_GREEYAA,
   PROTOCOL_GREEYAN,
+  PROTOCOL_GREEYAC,
   PROTOCOL_HISENSE_AUD,
   PROTOCOL_HITACHI,
   PROTOCOL_HYUNDAI,
diff --git a/esphome/components/heatpumpir/ir_sender_esphome.h b/esphome/components/heatpumpir/ir_sender_esphome.h
index 24e8ba9883..7546d990ea 100644
--- a/esphome/components/heatpumpir/ir_sender_esphome.h
+++ b/esphome/components/heatpumpir/ir_sender_esphome.h
@@ -11,8 +11,8 @@ namespace heatpumpir {
 
 class IRSenderESPHome : public IRSender {
  public:
-  IRSenderESPHome(uint8_t pin, remote_transmitter::RemoteTransmitterComponent *transmitter)
-      : IRSender(pin), transmit_(transmitter->transmit()){};
+  IRSenderESPHome(remote_transmitter::RemoteTransmitterComponent *transmitter)
+      : IRSender(0), transmit_(transmitter->transmit()){};
   void setFrequency(int frequency) override;  // NOLINT(readability-identifier-naming)
   void space(int space_length) override;
   void mark(int mark_length) override;
diff --git a/platformio.ini b/platformio.ini
index 5e89afe8e6..2ac6d0bfc8 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -49,7 +49,9 @@ lib_deps =
     glmnet/Dsmr@0.5                                       ; dsmr
     rweather/Crypto@0.2.0                                 ; dsmr
     dudanov/MideaUART@1.1.8                               ; midea
-    tonia/HeatpumpIR@1.0.15                               ; heatpumpir
+    ; PIO isn't update releases correctly, see:
+    ; https://github.com/ToniA/arduino-heatpumpir/commit/0948c619d86407a4e50e8db2f3c193e0576c86fd
+    https://github.com/ToniA/arduino-heatpumpir.git#1.0.18  ; heatpumpir
 build_flags =
     ${common.build_flags}
     -DUSE_ARDUINO