Combi Boiler for Wood & Pellets – A Flexible Heating Solution for Single-Family Homes

ULMA Biotriplex is a reliable and efficient combi boiler that allows you to heat your home with both wood and pellets. The boiler is delivered without a pellet burner, making it a flexible choice for those who want to customize the system to their needs or add a burner at a later date.

It is designed for heating single-family homes and smaller properties where economy, sustainability, and control over heating are key factors.

Efficient wood burning with after-combustion technology

The boiler uses modern sub-combustion technology, which means that the flue gases are post-combusted in a separate zone. This results in cleaner combustion and up to 30% higher efficiency compared to traditional boilers. :contentReference[oaicite:0]{index=0}

The result is better energy utilization, lower emissions, and more economical operation over time.

Prepared for pellet operation

Biotriplex is designed to be easily supplemented with a pellet burner. The pellet chamber is integrated into the design and compatible with several pellet burners on the market, making it easy to upgrade to a more automated operation when needed.

This makes the boiler a future-proof choice where you can start with wood burning and later add pellets for added convenience.

Sturdy construction and simple operation

The boiler is built with a focus on long service life and operational reliability. The robust construction, combined with effective insulation, ensures stable operation and good heating efficiency.

With separate chambers for wood and pellets, a clear control panel, and easy access for cleaning and sweeping, it’s convenient to use in everyday life.

Flexible heating – wood and electricity

The boiler can be used with wood as the primary energy source and supplemented with an electric heating element (6–12 kW) for added reliability. This provides a stable heating solution even during periods when you do not want to or cannot stoke the fire manually.

Optimal when paired with a storage tank

For best performance, installation with a storage tank is recommended. This allows heat to be stored efficiently, enabling you to fire the boiler less frequently, resulting in better overall economy and a more even indoor temperature.

Advantages of the Biotriplex combi boiler

• Efficient wood burning with high efficiency
• Prepared for pellet burner
• Flexible and future-proof solution
• Robust construction and long service life
• Easy operation and maintenance
• Suitable for single-family homes and smaller properties