A condensing boiler's design primarily focuses on:

The design of a condensing boiler primarily focuses on recovering heat normally lost to the atmosphere. In traditional boilers, significant amounts of heat are expelled through flue gases, which can lead to energy inefficiency. Condensing boilers are engineered to capture this lost heat by using a heat exchanger that condenses the water vapor in the exhaust gases. This process allows the boiler to utilize additional thermal energy, leading to higher efficiency ratings and reduced fuel consumption.

By recovering and reusing this heat, condensing boilers can achieve efficiencies often exceeding 90%. This design innovation not only enhances energy conservation but also contributes to lower greenhouse gas emissions. The ability to reclaim heat that would otherwise escape into the environment illustrates the effectiveness of condensing boiler technology in maximizing energy use in heating applications.