diff --git a/heat_control.py b/heat_control.py
index 8391219..8966846 100755
--- a/heat_control.py
+++ b/heat_control.py
@@ -181,12 +181,12 @@ def check_temperatures():
 def issue_commands():
 	for c in contours:
 		if c.state:
-			# 0 means "closed"
-			mqtt_client.publish(c.out_topic, "1", retain=True)
+			# 0 means "opened"
+			mqtt_client.publish(c.out_topic, 0, retain=True)
 		else:
-			mqtt_client.publish(c.out_topic, "0", retain=True)
-	mqtt_client.publish(boiler_control, str(boiler_out), retain=True)
-	mqtt_client.publish(pump_control, str(pump_out), retain=True)
+			mqtt_client.publish(c.out_topic, 1, retain=True)
+	mqtt_client.publish(boiler_control, boiler_out, retain=True)
+	mqtt_client.publish(pump_control, pump_out, retain=True)
 		
 
 def main_cycle():