From 528533a2dde0f3145ada7ac1351a42f3a6c344cf Mon Sep 17 00:00:00 2001
From: karwosts <32912880+karwosts@users.noreply.github.com>
Date: Tue, 30 Jan 2024 18:33:28 -0500
Subject: [PATCH] Combine climate graph with temperature device_classes
 (#19485)

---
 src/data/history.ts | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/data/history.ts b/src/data/history.ts
index a110c8c634..baece3da37 100644
--- a/src/data/history.ts
+++ b/src/data/history.ts
@@ -470,9 +470,15 @@ export const computeHistory = (
       }[domain];
     }
 
-    const deviceClass: string | undefined = (
-      currentState?.attributes || numericStateFromHistory?.a
-    )?.device_class;
+    const specialDomainClasses = {
+      climate: "temperature",
+      humidifier: "humidity",
+      water_heater: "temperature",
+    };
+
+    const deviceClass: string | undefined =
+      specialDomainClasses[domain] ||
+      (currentState?.attributes || numericStateFromHistory?.a)?.device_class;
 
     const key = computeGroupKey(unit, deviceClass, splitDeviceClasses);