diff --git a/.coveragerc b/.coveragerc
index 83e6971cc6a..3645eb00d33 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -126,7 +126,9 @@ omit =
     homeassistant/components/comfoconnect/*
     homeassistant/components/concord232/alarm_control_panel.py
     homeassistant/components/concord232/binary_sensor.py
+    homeassistant/components/coolmaster/__init__.py
     homeassistant/components/coolmaster/climate.py
+    homeassistant/components/coolmaster/const.py
     homeassistant/components/cppm_tracker/device_tracker.py
     homeassistant/components/cpuspeed/sensor.py
     homeassistant/components/crimereports/sensor.py
diff --git a/homeassistant/components/coolmaster/__init__.py b/homeassistant/components/coolmaster/__init__.py
index b27ae5f25b4..530427d33ad 100644
--- a/homeassistant/components/coolmaster/__init__.py
+++ b/homeassistant/components/coolmaster/__init__.py
@@ -1 +1,22 @@
-"""The coolmaster component."""
+"""The Coolmaster integration."""
+
+
+async def async_setup(hass, config):
+    """Set up Coolmaster components."""
+    return True
+
+
+async def async_setup_entry(hass, entry):
+    """Set up Coolmaster from a config entry."""
+    hass.async_add_job(hass.config_entries.async_forward_entry_setup(entry, "climate"))
+
+    return True
+
+
+async def async_unload_entry(hass, entry):
+    """Unload a Coolmaster config entry."""
+    await hass.async_add_job(
+        hass.config_entries.async_forward_entry_unload(entry, "climate")
+    )
+
+    return True
diff --git a/homeassistant/components/coolmaster/climate.py b/homeassistant/components/coolmaster/climate.py
index 71115a9eebb..a52431dd89b 100644
--- a/homeassistant/components/coolmaster/climate.py
+++ b/homeassistant/components/coolmaster/climate.py
@@ -3,9 +3,8 @@
 import logging
 
 from pycoolmasternet import CoolMasterNet
-import voluptuous as vol
 
-from homeassistant.components.climate import PLATFORM_SCHEMA, ClimateDevice
+from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
     HVAC_MODE_COOL,
     HVAC_MODE_DRY,
@@ -23,21 +22,11 @@ from homeassistant.const import (
     TEMP_CELSIUS,
     TEMP_FAHRENHEIT,
 )
-import homeassistant.helpers.config_validation as cv
+
+from .const import CONF_SUPPORTED_MODES, DOMAIN
 
 SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE | SUPPORT_FAN_MODE
 
-DEFAULT_PORT = 10102
-
-AVAILABLE_MODES = [
-    HVAC_MODE_OFF,
-    HVAC_MODE_HEAT,
-    HVAC_MODE_COOL,
-    HVAC_MODE_DRY,
-    HVAC_MODE_HEAT_COOL,
-    HVAC_MODE_FAN_ONLY,
-]
-
 CM_TO_HA_STATE = {
     "heat": HVAC_MODE_HEAT,
     "cool": HVAC_MODE_COOL,
@@ -50,17 +39,6 @@ HA_STATE_TO_CM = {value: key for key, value in CM_TO_HA_STATE.items()}
 
 FAN_MODES = ["low", "med", "high", "auto"]
 
-CONF_SUPPORTED_MODES = "supported_modes"
-PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
-    {
-        vol.Required(CONF_HOST): cv.string,
-        vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
-        vol.Optional(CONF_SUPPORTED_MODES, default=AVAILABLE_MODES): vol.All(
-            cv.ensure_list, [vol.In(AVAILABLE_MODES)]
-        ),
-    }
-)
-
 _LOGGER = logging.getLogger(__name__)
 
 
@@ -69,18 +47,17 @@ def _build_entity(device, supported_modes):
     return CoolmasterClimate(device, supported_modes)
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+async def async_setup_entry(hass, config_entry, async_add_devices):
     """Set up the CoolMasterNet climate platform."""
-
-    supported_modes = config.get(CONF_SUPPORTED_MODES)
-    host = config[CONF_HOST]
-    port = config[CONF_PORT]
+    supported_modes = config_entry.data.get(CONF_SUPPORTED_MODES)
+    host = config_entry.data[CONF_HOST]
+    port = config_entry.data[CONF_PORT]
     cool = CoolMasterNet(host, port=port)
-    devices = cool.devices()
+    devices = await hass.async_add_executor_job(cool.devices)
 
     all_devices = [_build_entity(device, supported_modes) for device in devices]
 
-    add_entities(all_devices, True)
+    async_add_devices(all_devices, True)
 
 
 class CoolmasterClimate(ClimateDevice):
@@ -118,6 +95,16 @@ class CoolmasterClimate(ClimateDevice):
         else:
             self._unit = TEMP_FAHRENHEIT
 
+    @property
+    def device_info(self):
+        """Return device info for this device."""
+        return {
+            "identifiers": {(DOMAIN, self.unique_id)},
+            "name": self.name,
+            "manufacturer": "CoolAutomation",
+            "model": "CoolMasterNet",
+        }
+
     @property
     def unique_id(self):
         """Return unique ID for this device."""
diff --git a/homeassistant/components/coolmaster/config_flow.py b/homeassistant/components/coolmaster/config_flow.py
new file mode 100644
index 00000000000..543b4c239c8
--- /dev/null
+++ b/homeassistant/components/coolmaster/config_flow.py
@@ -0,0 +1,64 @@
+"""Config flow to configure Coolmaster."""
+
+from pycoolmasternet import CoolMasterNet
+import voluptuous as vol
+
+from homeassistant import core, config_entries
+from homeassistant.const import CONF_HOST, CONF_PORT
+
+# pylint: disable=unused-import
+from .const import AVAILABLE_MODES, CONF_SUPPORTED_MODES, DEFAULT_PORT, DOMAIN
+
+MODES_SCHEMA = {vol.Required(mode, default=True): bool for mode in AVAILABLE_MODES}
+
+DATA_SCHEMA = vol.Schema({vol.Required(CONF_HOST): str, **MODES_SCHEMA})
+
+
+async def validate_connection(hass: core.HomeAssistant, host):
+    """Validate that we can connect to the Coolmaster instance."""
+    cool = CoolMasterNet(host, port=DEFAULT_PORT)
+    devices = await hass.async_add_executor_job(cool.devices)
+    return len(devices) > 0
+
+
+class CoolmasterConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
+    """Handle a Coolmaster config flow."""
+
+    VERSION = 1
+    CONNECTION_CLASS = config_entries.CONN_CLASS_LOCAL_POLL
+
+    def _async_get_entry(self, data):
+        supported_modes = [
+            key for (key, value) in data.items() if key in AVAILABLE_MODES and value
+        ]
+        return self.async_create_entry(
+            title=data[CONF_HOST],
+            data={
+                CONF_HOST: data[CONF_HOST],
+                CONF_PORT: DEFAULT_PORT,
+                CONF_SUPPORTED_MODES: supported_modes,
+            },
+        )
+
+    async def async_step_user(self, user_input=None):
+        """Handle a flow initialized by the user."""
+        if user_input is None:
+            return self.async_show_form(step_id="user", data_schema=DATA_SCHEMA)
+
+        errors = {}
+
+        host = user_input[CONF_HOST]
+
+        try:
+            result = await validate_connection(self.hass, host)
+            if not result:
+                errors["base"] = "no_units"
+        except (ConnectionRefusedError, TimeoutError):
+            errors["base"] = "connection_error"
+
+        if errors:
+            return self.async_show_form(
+                step_id="user", data_schema=DATA_SCHEMA, errors=errors
+            )
+
+        return self._async_get_entry(user_input)
diff --git a/homeassistant/components/coolmaster/const.py b/homeassistant/components/coolmaster/const.py
new file mode 100644
index 00000000000..d4cfea73820
--- /dev/null
+++ b/homeassistant/components/coolmaster/const.py
@@ -0,0 +1,25 @@
+"""Constants for the Coolmaster integration."""
+
+from homeassistant.components.climate.const import (
+    HVAC_MODE_COOL,
+    HVAC_MODE_DRY,
+    HVAC_MODE_FAN_ONLY,
+    HVAC_MODE_HEAT,
+    HVAC_MODE_HEAT_COOL,
+    HVAC_MODE_OFF,
+)
+
+DOMAIN = "coolmaster"
+
+DEFAULT_PORT = 10102
+
+CONF_SUPPORTED_MODES = "supported_modes"
+
+AVAILABLE_MODES = [
+    HVAC_MODE_OFF,
+    HVAC_MODE_HEAT,
+    HVAC_MODE_COOL,
+    HVAC_MODE_DRY,
+    HVAC_MODE_HEAT_COOL,
+    HVAC_MODE_FAN_ONLY,
+]
diff --git a/homeassistant/components/coolmaster/manifest.json b/homeassistant/components/coolmaster/manifest.json
index 69ab8ee3c4b..124a1e4a5b9 100644
--- a/homeassistant/components/coolmaster/manifest.json
+++ b/homeassistant/components/coolmaster/manifest.json
@@ -1,6 +1,7 @@
 {
   "domain": "coolmaster",
   "name": "Coolmaster",
+  "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/coolmaster",
   "requirements": [
     "pycoolmasternet==0.0.4"
diff --git a/homeassistant/components/coolmaster/strings.json b/homeassistant/components/coolmaster/strings.json
new file mode 100644
index 00000000000..d309f8c9c93
--- /dev/null
+++ b/homeassistant/components/coolmaster/strings.json
@@ -0,0 +1,23 @@
+{
+  "config": {
+    "title": "CoolMasterNet",
+    "step": {
+      "user": {
+        "title": "Setup your CoolMasterNet connection details.",
+        "data": {
+          "host": "Host",
+          "off": "Can be turned off",
+          "heat": "Support heat mode",
+          "cool": "Support cool mode",
+          "heat_cool": "Support automatic heat/cool mode",
+          "dry": "Support dry mode",
+          "fan_only": "Support fan only mode"
+        }
+      }
+    },
+    "error": {
+      "connection_error": "Failed to connect to CoolMasterNet instance. Please check your host.",
+      "no_units": "Could not find any HVAC units in CoolMasterNet host."
+    }
+  }
+}
diff --git a/homeassistant/generated/config_flows.py b/homeassistant/generated/config_flows.py
index bf63869bc9b..4668528fedb 100644
--- a/homeassistant/generated/config_flows.py
+++ b/homeassistant/generated/config_flows.py
@@ -14,6 +14,7 @@ FLOWS = [
     "axis",
     "cast",
     "cert_expiry",
+    "coolmaster",
     "daikin",
     "deconz",
     "dialogflow",
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index e61732e632b..2bdd47cd946 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -398,6 +398,9 @@ pybotvac==0.0.17
 # homeassistant.components.cast
 pychromecast==4.0.1
 
+# homeassistant.components.coolmaster
+pycoolmasternet==0.0.4
+
 # homeassistant.components.daikin
 pydaikin==1.6.1
 
diff --git a/tests/components/coolmaster/__init__.py b/tests/components/coolmaster/__init__.py
new file mode 100644
index 00000000000..a7e1bf08c99
--- /dev/null
+++ b/tests/components/coolmaster/__init__.py
@@ -0,0 +1 @@
+"""Tests for the Coolmaster component."""
diff --git a/tests/components/coolmaster/test_config_flow.py b/tests/components/coolmaster/test_config_flow.py
new file mode 100644
index 00000000000..d49858fcf05
--- /dev/null
+++ b/tests/components/coolmaster/test_config_flow.py
@@ -0,0 +1,104 @@
+"""Test the Coolmaster config flow."""
+from unittest.mock import patch
+
+from homeassistant import config_entries, setup
+from homeassistant.components.coolmaster.const import DOMAIN, AVAILABLE_MODES
+
+# from homeassistant.components.coolmaster.config_flow import validate_connection
+
+from tests.common import mock_coro
+
+
+def _flow_data():
+    options = {"host": "1.1.1.1"}
+    for mode in AVAILABLE_MODES:
+        options[mode] = True
+    return options
+
+
+async def test_form(hass):
+    """Test we get the form."""
+    await setup.async_setup_component(hass, "persistent_notification", {})
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+    assert result["type"] == "form"
+    assert result["errors"] is None
+
+    with patch(
+        "homeassistant.components.coolmaster.config_flow.validate_connection",
+        return_value=mock_coro(True),
+    ), patch(
+        "homeassistant.components.coolmaster.async_setup", return_value=mock_coro(True)
+    ) as mock_setup, patch(
+        "homeassistant.components.coolmaster.async_setup_entry",
+        return_value=mock_coro(True),
+    ) as mock_setup_entry:
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], _flow_data()
+        )
+
+    assert result2["type"] == "create_entry"
+    assert result2["title"] == "1.1.1.1"
+    assert result2["data"] == {
+        "host": "1.1.1.1",
+        "port": 10102,
+        "supported_modes": AVAILABLE_MODES,
+    }
+    await hass.async_block_till_done()
+    assert len(mock_setup.mock_calls) == 1
+    assert len(mock_setup_entry.mock_calls) == 1
+
+
+async def test_form_timeout(hass):
+    """Test we handle a connection timeout."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+
+    with patch(
+        "homeassistant.components.coolmaster.config_flow.validate_connection",
+        side_effect=TimeoutError(),
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], _flow_data()
+        )
+
+    assert result2["type"] == "form"
+    assert result2["errors"] == {"base": "connection_error"}
+
+
+async def test_form_connection_refused(hass):
+    """Test we handle a connection error."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+
+    with patch(
+        "homeassistant.components.coolmaster.config_flow.validate_connection",
+        side_effect=ConnectionRefusedError(),
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], _flow_data()
+        )
+
+    assert result2["type"] == "form"
+    assert result2["errors"] == {"base": "connection_error"}
+
+
+async def test_form_no_units(hass):
+    """Test we handle no units found."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+
+    with patch(
+        "homeassistant.components.coolmaster.config_flow.validate_connection",
+        return_value=mock_coro(False),
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], _flow_data()
+        )
+
+    assert result2["type"] == "form"
+    assert result2["errors"] == {"base": "no_units"}