One of the most common myths about nodules is the diagnosis itself! Usually doctorâs donât have the necessary equipment (stroboscopy) to diagnose vocal problems. So all problems are called nodules. Every singer has a colleague who had ânodulesâ for this reason.
Glossary of HVAC terms. HVAC (heating, ventilation, and air conditioning) is a major subdiscipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency.
A BTU is a measure of energy. There is no way to compare them. Possible meaning: 1 ton of cooling is often used to describe 12,000 BTU peâ¦r hour, so 36,000 BTU/h is equal to 3 tons of cooling. Amir Karimipour.