diff --git a/pkgs/development/python-modules/radiotherm/default.nix b/pkgs/development/python-modules/radiotherm/default.nix
new file mode 100644
index 000000000000..9cefe8839c1c
--- /dev/null
+++ b/pkgs/development/python-modules/radiotherm/default.nix
@@ -0,0 +1,34 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, mock
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "radiotherm";
+  version = "2.1.0";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "mhrivnak";
+    repo = pname;
+    rev = version;
+    sha256 = "0p37pc7l2malmjfkdlh4q2cfa6dqpsk1rah2j2xil0pj57ai6bks";
+  };
+
+  checkInputs = [
+    mock
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "radiotherm" ];
+
+  meta = with lib; {
+    description = "Python library for Wifi Radiothermostat";
+    homepage = "https://github.com/mhrivnak/radiotherm";
+    license = with licenses; [ bsd3 ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index 89826142cf78..08225738d1be 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -658,7 +658,7 @@
     "qwikswitch" = ps: with ps; [ ]; # missing inputs: pyqwikswitch
     "rachio" = ps: with ps; [ aiohttp-cors hass-nabucasa rachiopy ];
     "radarr" = ps: with ps; [ ];
-    "radiotherm" = ps: with ps; [ ]; # missing inputs: radiotherm
+    "radiotherm" = ps: with ps; [ radiotherm ];
     "rainbird" = ps: with ps; [ ]; # missing inputs: pyrainbird
     "raincloud" = ps: with ps; [ ]; # missing inputs: raincloudy
     "rainforest_eagle" = ps: with ps; [ ]; # missing inputs: eagle200_reader uEagle
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index d70df4c24c75..c3c6d71dbb07 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6679,6 +6679,8 @@ in {
 
   radio_beam = callPackage ../development/python-modules/radio_beam { };
 
+  radiotherm = callPackage ../development/python-modules/radiotherm { };
+
   radish-bdd = callPackage ../development/python-modules/radish-bdd { };
 
   rainbowstream = callPackage ../development/python-modules/rainbowstream { };