GAS-FIRED HEATER VENT SYSTEM

摘要

ABSTRACT OF THE DISCLOSUREA vent system for a gas fired swimming poolheater is disclosed in which replacement of threecomponents is all that is required to change theheater vent to one for use with outdoor installedheaters to one for use with indoor installed heaters.The parts replacement is sufficiently simple toenable unskilled purchasers of the system to effectthe changeover.