From a50bcdff1a35279ebad3e468d0d8e0fa697974b8 Mon Sep 17 00:00:00 2001
From: Joakim Plate <elupus@ecce.se>
Date: Mon, 25 Feb 2019 07:45:40 +0100
Subject: [PATCH] Mark water_heater as significant domain (#21390)

---
 homeassistant/components/history/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/homeassistant/components/history/__init__.py b/homeassistant/components/history/__init__.py
index fb037e8909d..7b07fac19a6 100644
--- a/homeassistant/components/history/__init__.py
+++ b/homeassistant/components/history/__init__.py
@@ -29,7 +29,7 @@ CONFIG_SCHEMA = vol.Schema({
     })
 }, extra=vol.ALLOW_EXTRA)
 
-SIGNIFICANT_DOMAINS = ('thermostat', 'climate')
+SIGNIFICANT_DOMAINS = ('thermostat', 'climate', 'water_heater')
 IGNORE_DOMAINS = ('zone', 'scene',)