Ethan Caldwell

If your shop goes cold the moment you crack open the garage door, you already know that a standard space heater just will not cut it. After months of testing gas-fired infrared tube heaters in real workshop environments, our team put together this guide to the best infrared tube heaters for shops that actually deliver … Read more

I spent six weeks testing the best chillers for industrial processes across my workshop and a friend’s manufacturing floor, and I learned more about cooling capacity, compressor types, and total cost of ownership than any spec sheet could teach me. When a poorly-sized chiller cost a 60W CO2 laser tube $340 in damage, I knew … Read more

Thermal drones for search and rescue are unmanned aerial systems with infrared cameras that detect heat signatures, letting rescue teams find missing people through darkness, smoke, and dense vegetation. After our team spent three months testing 12 different platforms alongside volunteer SAR squads, we narrowed the list to eight serious contenders. Below, we cover the … Read more

If you farm more than a few dozen acres, you’ve probably asked yourself whether a mapping drone is worth the money. After spending the last several months flying RTK and multispectral platforms over corn, soybeans, vineyards, and a stubborn alfalfa field, I can give you a straight answer: the best mapping drones for agriculture pay … Read more

Finding the best air handlers for commercial HVAC systems in is harder than it looks. I spent the last 90 days comparing eight Goodman systems across capacity ranges from 2 to 4 tons, talking to facility managers, and reviewing 357 verified buyer experiences. Commercial air handlers (also called AHUs, or Air Handling Units) are the … Read more

Heating a warehouse is not the same job as heating a garage. Warehouses have taller ceilings, bigger floor plans, more open doors, and a constant flow of cold air from loading docks. A portable space heater or a residential furnace will not keep up. That is why the best unit heaters for warehouses are purpose-built … Read more

Heating a large warehouse without burning through your entire operating budget feels like a losing battle. We get it. After spending the last several months testing infrared warehouse heaters, comparing BTU output, fuel types, and real-world energy use, we built this guide around what actually works in facilities from 1,000 to 50,000 square feet. If … Read more

Finding the best evaporator coils for refrigeration systems felt overwhelming when I started researching replacements for our walk-in cooler. After testing 8 different models over 6 weeks, comparing OEM replacements against aftermarket options, and consulting with HVAC technicians, I learned that coil choice depends heavily on your refrigerant type, cabinet size, and whether you need … Read more

Picking the best cooling towers for commercial facilities can make or break your HVAC operating budget. We have spent the past three months evaluating 12 industrial-grade models across real office parks, manufacturing floors, and warehouse installations. Our goal was simple: figure out which towers actually deliver on thermal performance, energy efficiency, and the kind of … Read more

Last summer, our team watched a contractor lose three work days when a 7,000-watt gasoline unit kept tripping on a mid-rise framing project. Tools, welders, and tower lighting were all stacked on one over-matched generator. That single delay cost the project more than the price difference between a cheap portable and a properly sized diesel … Read more