What is an important consideration when installing pool heaters?

Proper gas line installation and ventilation is crucial when installing pool heaters because it ensures safety and efficiency. A gas pool heater requires a proper fuel supply line to operate effectively. If the gas line is not installed correctly, it can lead to gas leaks, which are hazardous and can result in severe accidents or explosions.

Additionally, adequate ventilation is necessary to facilitate the safe expulsion of exhaust gases produced during the heating process. Without proper ventilation, these gases can accumulate, leading to dangerous health risks for anyone using the pool area.

While aspects like selecting a decorative model, heater size, and cost of installation are relevant considerations during the decision-making process, they don't directly impact the operational safety and functionality of the heater as much as ensuring correct gas line installation and ventilation does. Thus, focusing on these technical requirements is fundamental for the safe and effective use of pool heaters.