The efficacy assessment of flat-plate solar-powered heaters under various environmental circumstances is the main topic of the present study. Analyzing their performance in various contexts and evaluating their possibilities as renewable energy sources are the targets. In order to evaluate the heater's effectiveness in heating, energy production, and flexibility, information collected from different locations that have different temperatures will be gathered for the study. Important variables are monitored and studied, including the surrounding temperature, sun irradiation, and thermal transfer speeds. The findings show how flat-plate solar-powered heaters function in various climates, assisting in optimal design and selecting materials for certain locations. This research improves knowledge of the application of green power while enlightening decision-makers, designers, and activists regarding the viability of integrating solar heating technologies as a cleaner option.