Guides & How-To
The reasoning behind the numbers. Each guide explains the real-world logic behind our calculators, where assumptions break down, and how to interpret the results.
What Size Grain Bin Do I Need?
How to calculate grain bin capacity using real geometry, account for peaked vs level fill, factor in moisture shrink, and match your auger to the bin.
How to Size Wire for Long Runs
Why voltage drop matters more than ampacity on long wire runs, how NEC derating works, copper vs aluminum tradeoffs, and the mistakes that fail inspection.
Is a Heat Pump Worth It?
How to figure out if a mini-split or heat pump will save you money. COP curves, switchover temperatures, when propane wins, and how to run the numbers with your actual bills.
How Much Are Your Compressed Air Leaks Actually Costing?
How to quantify compressed air leaks in CFM, convert that to kilowatts and dollars, walk an audit, and decide which leaks are worth fixing.
Wiring a Detached Shop or Garage
How to plan electrical service for a detached shop, garage, or outbuilding. Load lists, subpanel sizing, feeder wire, voltage drop on long runs, and NEC burial requirements.
Choosing the Right Rotating Shift Schedule
DuPont, Pitman, Continental, 4-on-4-off - what makes each pattern different, how crew count drives the decision, fatigue tradeoffs, and how to plan a transition.
Want the Calculator Instead?
Every guide links to the calculators it references. Or jump straight to the full tool catalog.
Explore All Tools