Hot yoga, as well as Bikram Yoga, requires strict control over the temperature and humidity of the environment as it's designed to mimic the climate of India.
Hot Yoga News Archives - Hot Yoga OM
How to heat a hot yoga studio - Advice Centre
Teaching hot yoga: health and safety
State-of-the-Art Yoga Studio Opens in Suwanee - Suwanee Magazine
Hot Yoga Heating
Yoga Panel Heaters
PULSE with Phuket Studio Production hold a heating-up exhibition 'Hot As Hell
Yoga studio turns up the heat to help its guests relax, get in great workouts
OM Yoga Magazine - Yoga Poses - Meditation - Mindfulness