diff -r f3b0e9ac9bcb -r 7b0f819a3805 thermferm/rdconfig.c
--- a/thermferm/rdconfig.c	Sun Feb 15 23:09:00 2015 +0100
+++ b/thermferm/rdconfig.c	Mon Feb 16 19:52:42 2015 +0100
@@ -461,11 +461,11 @@
 		syslog(LOG_NOTICE, "wrconfig: error at xmlTextWriterWriteFormatElement");
 		return 1;
 	    }
-	    if ((rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "IDLE_RANGE_L", "%.1f", tmp3->idle_rangeL)) < 0) {
+	    if ((rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "IDLE_RANGE_L", "%.2f", tmp3->idle_rangeL)) < 0) {
 		syslog(LOG_NOTICE, "wrconfig: error at xmlTextWriterWriteFormatElement");
 		return 1;
 	    }
-	    if ((rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "IDLE_RANGE_H", "%.1f", tmp3->idle_rangeH)) < 0) {
+	    if ((rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "IDLE_RANGE_H", "%.2f", tmp3->idle_rangeH)) < 0) {
 		syslog(LOG_NOTICE, "wrconfig: error at xmlTextWriterWriteFormatElement");
 		return 1;
 	    }