Conventional vs Condensing Boilers

Condensing vs. Conventional Boilers: A Comprehensive Comparison

With homeowners needing to switch from conventional to condensing boilers, it’s essential to understand the differences between the two. Here, we delve into each type and highlight their main distinctions.

 

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How Do Traditional Conventional Boilers Work?

Conventional boilers, also known as non-condensing boilers, distribute by-products as fumes through the flue, which then exit the home. These superheated vapors result in energy loss. Consequently, conventional boilers waste energy and contribute more to air pollution compared to other options.

Due to the way conventional boilers operate, they end up wasting energy, and end up polluting the air more so than other alternatives.

 

Advantages of Conventional Boilers:

  • Cheaper to install and maintain – Conventional non-condensing boilers were typically cheaper to install and maintain due to having fewer parts. However, due to new building regulations, new gas and oil boilers must be condensing. In exceptional circumstances where a condensing boiler may not be viable, a Gas Safe registered installer, such as Aren Heating & Plumbing, can assess and provide alternative options.

 

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How Do the Latest Condensing Boilers Work?

Condensing boilers are designed for more efficient operation by recovering and using some of the heat that would otherwise be lost in a conventional system. These boilers use two heat exchangers, allowing the superheated vapor to cool and condense from gas to liquid within the boiler. This process is contained within high-grade stainless steel to prevent damage from the corrosive liquid.

 

Advantages of Condensing Boilers:

Improved Efficiency – Condensing boilers retain and use a higher proportion of generated heat, improving home heating efficiency. On average, condensing boilers are 90% efficient compared to 75% for conventional boilers.

Better for the Environment – Although all boilers impact the environment, condensing boilers produce less carbon dioxide and are more efficient, reducing energy waste and lowering energy bills. This efficiency translates to lower costs for maintaining the same heat levels in your home.

Environmental Impact: Condensing boilers produce less carbon dioxide, making them a more environmentally friendly option compared to conventional boilers.

Energy Efficiency Comparison: Condensing boilers can achieve up to 90% efficiency, significantly higher than the 75% efficiency typical of conventional boilers. This means lower energy bills and reduced environmental impact.

Cost Comparison: While condensing boilers may have a higher initial cost, their improved efficiency can lead to significant savings on energy bills over time.

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