Calling OnServerInitialized/OnOvenToggle took XmsSolved
Calling 'OnServerInitialized' on 'QuickSmelt v5.0.0' took 14264ms <--- that can't be good surely?

Also, is the config right? furnace.shortname? item.shortname?

My config : 

{
"Permission": "quicksmelt.use",
"Use Permission": false,
"Speed Multipliers": {
"furnace.shortname": 75.0
},
"Fuel Usage Speed Multipliers": {
"furnace.shortname": 1.0
},
"Fuel Usage Multipliers": {
"furnace.shortname": 2.0
},
"Output Multipliers": {
"furnace.shortname": {
"item.shortname": 1.0
}
},
"Debug": false
}

The furnace isn't smelting anything, at any speed.

"Permission": "quicksmelt.use",
"Use Permission": false,
"Speed Multipliers": {
"furnace": 1000.0,
"furnace.large": 1000.0,
"small.oil.refinery": 1000.0
},
"Fuel Usage Speed Multipliers": {
"furnace": 1000.0,
"furnace.large": 1000.0,
"small.oil.refinery": 1000.0
},
"Fuel Usage Multipliers": {
"furnace": 1000.0,
"furnace.large": 1000.0,
"small.oil.refinery": 1000.0
},
"Output Multipliers": {
"furnace": {
"metal.ore": 1.0,
"sulfur.ore": 1.0,
"hq.metal.ore": 1.0,
"crude.oil": 5.0
},
"furnace.large": {
"metal.ore": 1.0,
"sulfur.ore": 1.0,
"hq.metal.ore": 1.0,
"crude.oil": 5.0
},
"small.oil.refinery": {
"metal.ore": 1.0,
"sulfur.ore": 1.0,
"hq.metal.ore": 1.0,
"crude.oil": 5.0
}
},
"Debug": false
}

Nor is mine, and i've tried both the ore names, and the refined names. Furnaces also stay burning even after you remove fuel.
Also getting this on some (not all) furnace turn-ons: Calling 'OnOvenToggle' on 'QuickSmelt v5.0.0' took average 4303ms
Having the same problem 
I went back to Wulf's version. That one works :)
Hey, guys
I don't know why OnOvenToggle took 4303 ms, but OnServerInitialized is fine. Also it's an example config, you must replace furnace.shortname with furnace's shortname, like furnace, campfire, etc. Come on, is it really that hard?

Merged post

About output multipliers, thank you for your report. I will fix it in the nearest time, ..

Merged post

Hey! Just updated the plugin. Try using this version.
"Also it's an example config, you must replace furnace.shortname with furnace's shortname, like furnace, campfire, etc. Come on, is it really that hard?"

Apparently, yes. A bit of documentation might not be bad idea in that case, to let everyone know exactly what they have to do to get this plugin to work. Otherwise you'll be fielding posts such as this one forever. 
In response to LoneWolfAU ():
"Also it's an example config, you must replace furnace.shortname with furnace's shortname, like furn...
I updated the documentation so I hope it would be easier to understand
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