How Secondary Combustion Technology Enhances Stove Efficiency

RHINO
Aug 26
2 min read

Introduction

Wood-burning stoves remain one of the most popular heating solutions in UK homes, offering warmth, character, and efficiency. But did you know that modern stoves with secondary combustion technology can significantly improve performance while lowering emissions? In this article, we’ll explore how secondary combustion works, why it matters, and how your flue system plays a vital role in ensuring efficiency.

What is Secondary Combustion?

Traditional stoves only burn the wood itself, releasing gases and particulates up the chimney. A secondary combustion stove, however, burns those gases a second time before they escape. By re-burning the smoke, more heat is extracted and fewer pollutants are released.

There are two main types:

Catalytic stoves – use a catalyst to ignite smoke at lower temperatures.
Non-catalytic stoves – use insulated fireboxes and airflow control to achieve the same effect.

Why Secondary Combustion Matters

Higher Efficiency – You get more heat from the same amount of wood.
Lower Fuel Costs – Less wood is needed to heat your space.
Reduced Emissions – Cleaner burn means fewer pollutants and less creosote buildup in your flue.
Longer Burn Times – A well-designed stove holds heat for longer, reducing the need for constant refuelling.

The Role of Your Flue System

Even the best stove won’t perform well without a properly designed flue system. For secondary combustion to work effectively, your flue needs to:

Maintain the right draft (too weak, and smoke won’t ignite; too strong, and heat escapes).
Stay insulated, often requiring a twin wall flue pipe or flexible flue liner in existing chimneys.
Be installed at the correct height and diameter to ensure consistent airflow.

At Rhino Flues, we supply durable, high-quality flue systems designed to support modern stove technology.

Conclusion

Secondary combustion stoves are a smart investment for homeowners looking to cut heating bills and reduce environmental impact. However, their success depends on pairing them with the right flue system. Always consult a professional installer to ensure safety, compliance, and maximum efficiency.