diff --git a/src/conf_defaults.lua b/src/conf_defaults.lua
index 14841d7..697f122 100644
--- a/src/conf_defaults.lua
+++ b/src/conf_defaults.lua
@@ -9,7 +9,7 @@
 	- type: used for basic type checking, one of bool, int, float or string
 	- description: A descriptive text usable by API clients
 	- min, max, regex: optional constraints (min and max constrain value for numbers, or length for strings)
-	
+
 	NOTE that the all-caps definitions will be changed into configuration keys, or moved to a different location
 ]]--
 local printer = require('util.printer')
@@ -54,9 +54,9 @@ M.printer_type = {
 	default = 'ultimaker',
 	type = 'string',
 	description = '',
-	isValid = function(value) 
+	isValid = function(value)
 		local printers = printer.supportedPrinters()
-		return printers[value] ~= nil 
+		return printers[value] ~= nil
 	end
 }
 
@@ -64,9 +64,9 @@ M.printer_baudrate = {
 	default = '115200',
 	type = 'int',
 	description = '',
-	isValid = function(value) 
+	isValid = function(value)
 		local baudrates = printer.supportedBaudRates()
-		return baudrates[tostring(value)] ~= nil 
+		return baudrates[tostring(value)] ~= nil
 	end
 }
 
@@ -124,7 +124,13 @@ M.printer_firstLayerSlow = {
 	description = 'Print the first layer slowly to get a more stable start'
 }
 
-M.printer_heatupTemperature = {
+M.printer_heatup_enabled = {
+	default = true,
+	type = 'bool',
+	description = ''
+}
+
+M.printer_heatup_temperature = {
 	default = 180,
 	type = 'int',
 	description = ''
@@ -163,12 +169,6 @@ M.printer_enableTraveling = {
 	description = ''
 }
 
-M.printer_autoWarmUpCommand = {
-	default = 'M104 S180',
-	type = 'string',
-	description = ''
-}
-
 M.printer_startgcode = {
 	default = ';Generated with Doodle3D\nG21 ;metric values\nG91 ;relative positioning\nM107 ;start with the fan off\nG28 X0 Y0 ;move X/Y to min endstops\nG28 Z0 ;move Z to min endstops\nG1 Z15 F9000 ;move the platform down 15mm\nG92 E0 ;zero the extruded length\nG1 F200 E10 ;extrude 10mm of feed stock\nG92 E0 ;zero the extruded length again\nG92 E0 ;zero the extruded length again\nG1 F9000\nG90 ;absolute positioning\nM117 Printing Doodle...   ;display message (20 characters to clear whole screen)',
 	type = 'string',
diff --git a/src/rest/api/api_printer.lua b/src/rest/api/api_printer.lua
index b0691ba..d4f02ed 100644
--- a/src/rest/api/api_printer.lua
+++ b/src/rest/api/api_printer.lua
@@ -121,7 +121,7 @@ function M.heatup_POST(request, response)
 	local printer,msg = createPrinterOrFail(argId, response)
 	if not printer then return end
 
-	local temperature = settings.get('printer.heatupTemperature')
+	local temperature = settings.get('printer.heatup.temperature')
 	local rv,msg = printer:heatup(temperature)
 
 	response:addData('id', argId)
@@ -165,7 +165,7 @@ function M.print_POST(request, response)
 	end
 
 	if argIsFirst == true then
-		log:debug("clearing all gcode for " .. printer)
+		log:debug("clearing all gcode for " .. printer:getId())
 		response:addData('gcode_clear',true)
 		local rv,msg = printer:clearGcode()
 
diff --git a/src/www b/src/www
index 1842ec0..a45d1ad 160000
--- a/src/www
+++ b/src/www
@@ -1 +1 @@
-Subproject commit 1842ec01b2d455142b8f654323ec92a4e2395753
+Subproject commit a45d1ad8edb89902fd4ef2b91d82dec23f8e51cd