COIL 2 topics · 2 sources ScienceEnergyAs a component of a heating or cooling appliance, rows of tubing or pipe with fins attached through which a heat transfer fluid is circulated and to deliver heat or cooling energy to a building.US DOE Office of Energy Efficiency & Renewable Energy — Glossary of Energy-Related Terms retrieved 2014-05-26 Cite TechnologyDefenseChemical Oxygen-Iodine Laser.DoD Missile Defense Agency — MDA Glossary Cite