Factorio Furnace Ratio

Mastering the Factorio Furnace Ratio: Optimizing Your Production

Factorio, the critically acclaimed factory-building game, demands meticulous planning and optimization. A crucial element of this optimization lies in understanding and mastering the furnace ratio – the precise balance between ore processing, smelting, and product output. This article will delve into the intricacies of furnace ratios, providing a comprehensive guide to efficient production planning in Factorio. We'll explore how different factors influence the optimal ratio and illustrate the calculation process with practical examples.

Understanding the Basics: Inputs and Outputs

Before diving into ratios, let's establish the fundamental components. The core process involves mining raw ore (e.g., iron ore), transporting it to furnaces, smelting it into plates (e.g., iron plates), and finally utilizing those plates for further production. Each furnace has a specific smelting speed, measured in items per minute (items/min). The speed is affected by the furnace's technology level (e.g., productivity modules) and the type of ore being processed.

Calculating the Basic Iron Plate Ratio (1:1)

Let's start with the simplest scenario: producing iron plates. Assume a basic electric furnace with a smelting speed of 1 item/min and a miner extracting 1 iron ore/min. In this case, a 1:1 ratio (one miner for one furnace) is perfectly efficient. One miner provides exactly enough ore for one furnace to process continuously.

Incorporating Mining Productivity

However, Factorio offers various ways to enhance mining efficiency. Mining productivity modules, for example, increase the amount of ore extracted per minute. Let's say a mining productivity module increases mining output by 50%. Now our miner produces 1.5 iron ore/min. This exceeds the furnace's capacity (1 item/min). To maintain optimal efficiency, we either need a faster furnace or multiple furnaces. In this case, you would require approximately 1.5 furnaces to maintain a balanced system. However, since you can’t have fractions of furnaces, you would need two furnaces, leading to a surplus of ore.

Advanced Ratios: Considering Multiple Furnaces and Belt Speed

The scenarios get more complex when multiple furnaces are involved and belt speeds limit ore transport. Let's assume we want to produce 60 iron plates/min. A basic electric furnace with modules might achieve 2 items/min. We'd need 30 furnaces (60 plates/min / 2 plates/min/furnace). The critical aspect now is the ore transport. If the miner and belts can only supply 50 ore/min, the 30 furnaces will frequently starve, even if individually capable of 2 items/min. You would need to upgrade your mining and transportation infrastructure to meet the demand. This highlights the importance of considering the entire production line, not just the furnace ratio itself.

The Influence of Modules and Research

Productivity modules significantly impact furnace ratios. A level 3 productivity module might increase output by 40%, meaning a furnace theoretically produces more than its base smelting speed. However, note that the input (ore) remains the same; only the output is affected. Furthermore, research upgrades to furnaces directly enhance their smelting speed, altering the optimal ratio. These variables must be factored into accurate calculations.

Calculating Ratios for Different Materials

The principles outlined above apply to other materials. Copper, stone, and other ores all have different smelting times and might require different mining/furnace ratios based on their specific properties and desired output. The key remains to balance the input (mining) with the output (furnace processing) to prevent bottlenecks.

Conclusion

Mastering the Factorio furnace ratio involves understanding the interplay between mining speed, furnace smelting rate, module enhancements, and transportation capabilities. It's not just about a simple numerical ratio; it's about optimizing the entire production chain. By carefully considering these factors, you can build highly efficient factories that maximize resource utilization and minimize waste, leading to a more streamlined and productive Factorio experience.

FAQs:

1. Q: How do I calculate the exact furnace ratio for a specific setup? A: Start with your desired output (items/min). Divide this by the smelting speed of your furnace (items/min per furnace), considering module effects and research upgrades. This gives the number of furnaces required. Then, ensure your mining and transportation capacity can supply the necessary ore.

2. Q: What happens if I have too many furnaces? A: Your furnaces will starve due to insufficient ore supply, leading to inefficient resource use and idle furnaces.

3. Q: What happens if I have too few furnaces? A: You will have a bottleneck at the furnace stage, resulting in slower production than your mining and transportation capacity allows.

4. Q: Are there any online calculators to help with furnace ratios? A: Yes, several community-created calculators and tools are available online to simplify these calculations, taking into account various modules and upgrades.

5. Q: How important is belt speed in calculating the furnace ratio? A: Belt speed is crucial; if your belts can't deliver enough ore to the furnaces, your calculated ratio becomes meaningless. Ensure your belt speed can handle the required ore throughput.

Search Results:

r/factorio on Reddit: What's the formula for calculating how many ... The questions should be, what is the throughput of this belt, and how many furnaces do I need to produce that throughput. Red belts can transfer 30 items per second. Iron plates take 3.2 seconds to produce from a furnace with crafting speed 1 An un-moduled electric furnace has craft speed 2—it will produce 1 iron/copper plate every 1.6 seconds.

How many furnaces can a "Electric Mining Drill" supply? As you research mining productivity, this ratio changes over time allowing miners to supply more and more furnaces. With enough levels of research (insanely late game), one miner can saturate a blue belt. 4-5 tiers of mining productivity should be enough to make one electric mining drill able to feed one improved furnace.

Coal to Furnace ratio : r/factorio - Reddit 5 Jun 2018 · A single furnace will consume 1.35 coal per minute. A single belt will carry 800 items/minute, so 800/1.35 = 592.59 furnaces can be supplied by a single yellow belt of coal.

Can someone explain mining and furnace ratios to me? : … For your item consumption rate, you’ll want to use the smaller of the inserter rate, or furnace rate — that is, 1/3.2 = 0.3125 i/s for basic furnace, or 1/1.6 = 0.625 i/s for steel or electric furnaces. For ratios, I think the key is using fractions (hence ratios :) ). Mining most materials produces 1/2 i/s, and stone furnaces consume 1/3.2 = 5/16 i/s; convert both to have the same ...

How many stone furnaces can one drill support? : r/factorio - Reddit 25 Dec 2021 · I just started a Factorio world and I'm trying to make a good starter smeltery and I don't know if I have too little or too many smelters so if you have 1 drill how many stone furnaces can that 1 drill support?

Belt to Furnace Ratios : r/factorio - Reddit 14 Mar 2016 · And by taking 46.7 (Number of furnaces running from a full belt) and dividing it by 26 (Number of miners filling the belt) you get 1.8 (Number of furnaces per miner). You can halve that to .9 for steel/electric, adjust if you are using speed mods, and you can make furnace count perfect mining setups.

Steel ratios : r/factorio - Reddit 7 Jan 2023 · Without modules, it's 1:1 ratio between furnaces making iron and furnaces making steel. With productivity modules you need a bit less furnaces making steel. Steel requires 5 iron plates, so 1 input belt of iron gives 0.2 output belts of steel. In other words, if you want 1 belt of steel, you need 5 belts of iron. The numbers in the cheatsheet are for OUTPUT, so they are 5x …

Is this the correct ratio for my furnaces and belts? : r/factorio - Reddit 10 Jul 2018 · Does this mean I need 192 stone furnaces? Or would it be smarter to Set the ratio up for at least steel furnaces (since I will probably not need 4 belts worth of iron until that stage of the game anyway)? So should I use the steel/electric furnace ratios so I only make my smelting set up have 96 furnaces (24 per belt x 4 belts)?

Perfect Miner/furtnace ratio : r/factorio - Reddit 19 Aug 2020 · I've never looked at smelting loop as miners/furnace ratios. Two basic ratios that should be considered: how many furnaces do you need to consume a full belt and how many furnaces you need to fill a full belt. Both of these ratios can be found at factorio cheat sheet (link posted by u/paco7748). Number of miners always seemed to me kinda irrelevant as when you …

Furnace to Drill Ratio? : r/factorio - Reddit 1 Aug 2016 · A electric mining drill produces 0.525 ore per second. Electric furnaces use 2/3.5 = 0.57143 ore per second. So the correct ratio is 160:147 drills to furnaces. But usually people just go with 1:1.