The LUKADEN archive
Articles on appliances, HVAC, and household energy costs
Original, practical guides for readers in the United States and South Korea. Every article is organized by category so you can find what you need quickly, from appliance specifications to electricity costs and routine home maintenance.
A Simple Routine for Checking HVAC Filters
A filter check is more useful when it follows the equipment instructions than an arbitrary calendar reminder. Learn what to…
A Fairer Way to Compare Air Conditioners
Two efficiency scores are not always directly comparable, especially across markets. Begin with the cooling job the room needs, then…
Turn Appliance Labels Into Running Costs
A wattage figure is only part of the story. Here’s how to turn appliance information and your electricity rate into…