Describe Electric Furnace in guide

guide.lua

@@ -126,6 +126,29 @@ local pages={
 			<img name="industrialtest_guide_compressor.png" width="{{IMAGE_WIDTH}}">
 			<left>Picture 1. Compressor compressing <item name="industrialtest:plantball" height="{{ITEM_HEIGHT}}"> <b>Plantball</b> into <item name="industrialtest:compressed_plantball" height="{{ITEM_HEIGHT}}"> <b>Compressed Plantball</b></left>
 		]]
+	},
+
+	{
+		name="electricFurnace",
+		title=S("Electric Furnace"),
+		icon="industrialtest:electric_furnace",
+		content=[[
+			<big>Electric Furnace</big>
+			<left>
+				Electric Furnace like regular furnace can be used to smelt items. The difference is that Electric Furnace is slightly faster even without any upgrades and, well, it's electric so it doesn't require fuel.
+			</left>
+			<mono>
+				--------------------------------
+				| Input voltage level | LV     |
+				| Power per operation | 60 EU  |
+				| Power capacity      | 416 EU |
+				| Default efficiency  | 0.5    |
+				--------------------------------
+				Figure 1. Machine information for Electric Furnace
+			</mono>
+			<img name="industrialtest_guide_electric_furnace.png" width="{{IMAGE_WIDTH}}">
+			<left>Picture 1. Electric Furnace smelting <item name="industrialtest:iron_dust" height="{{ITEM_HEIGHT}}"> <b>Iron Dust</b> into <item name="{{elementKeyIronIngot}}" height="{{ITEM_HEIGHT}}"> <b>Iron Ingot</b></left>
+		]]
 	}
 }
 
@@ -163,7 +186,8 @@ local function getGuideFormspec(playerName,pageName)
 		if page.name==pageName then
 			local content=preprocessHypertext(page.content,{
 				IMAGE_WIDTH=550,
-				ITEM_HEIGHT=16
+				ITEM_HEIGHT=16,
+				elementKeyIronIngot=industrialtest.elementKeys.ironIngot
 			})
 			table.insert(formspec,string.format("hypertext[4.2,0.4;10.7,10.3;content;%s]",content))
 			break