The physics behind the calculator's numbers — with primary sources and honest disclosure of what's confirmed, estimated, and still open. For practical tips without the citations, see Smart Cooling.
The math LiveThe tariff cancels out of every % calculation — proved algebraically, with a table of how differently rates are structured across the region.
Dry Mode LiveYes — 20–50% less power than Cool mode. How the compressor works in each mode, what Voltas and Blue Star manuals say about the temperature setting, and the mould bonus.
Comfort LiveTwo independently-sourced ~2°C effects — humidity headroom and the DOE's fan figure — that reinforce each other rather than just coincidentally adding up.
Timing LiveCore body temperature's circadian nadir — why it falls roughly 2 hours before wake time, and why this applies in any city without needing local climate data.
Mould LiveThe 72.8% RH germination threshold from a British Public Record Office study, and what dry mode's 50–60% RH actually means for your wardrobe.
Per-degree savings LivePublished estimates range from 3% to 11% per °C of thermostat increase. Here's why the range is that wide and which figure is most relevant for tropical climates.