FITFIRE® Eco:
for condensing boilers
The 100% Italian and certified solution, designed to resist acid condensate and ensure performance and durability: FITFIRE® Eco is the ecological thermosetting liner for the rehabilitation of obsolete flues to connect to new condensing boilers.
FITFIRE® Eco was created to transform traditional flues and make them compatible with the requirements of modern condensing boilers, without replacements!
During installation, it precisely adapts to the internal surfaces of the existing duct and, at the end of the process, delivers a monolithic flue, without joints and with high sealing performance. Thanks to innovative nanotechnologies, this liner repels condensate droplets, remaining dry and ensuring total impermeability.
Continue reading to discover all the advantages, features and installation methods of FITFIRE® Eco. Or contact us now to request installation kits and your supply of thermosetting technologies for flue rehabilitation.
System advantages

Fast installation in one third of the time
No masonry work required
Protection against acid condensate
Corrosion resistance
Self-supporting structure without anchoring
Monolithic result, without joints or weak points
Ideal for
condensing boilers
Certifications
The of FITFIRE® ECO
Designed for energy saving
FITFIRE® Eco is the ideal and smart solution for those switching to a new condensing boiler: an ecological, advanced system engineered for corrosive conditions.
Reduced installation time:
timeframes reduced by up to one third compared to standard relining systems.
Ease of installation and minimal disruption:
no demolition required and no dust during installation.
Innovative insulating material:
improves flue gas velocity and ensures high sealing performance with reduced consumption
Total impermeability to acid condensate:
a guarantee of durability and resistance against corrosion
Monolithic self-supporting solution:
no anchoring is required and the result is a new structure without joints or potential leakage points
The of FITFIRE® ECO
CE certified product
T160 P1 W2 O40
Fire reaction class: B – s1, d0
Flow resistance: r = 0.00035 m
Thermal resistance: 0.17 m²K/W
Tensile strength 10.5 MPa
How FITFIRE® ECO
Fast, safe and non-destructive: installation in just 5 steps
- 1. Video inspection > 2. Application of the lower and upper sleeve with pressure gauge > 3. Forced air injection > 4. Steam injection > 5. Cutting of excess liner.
And your flue is as good as new!
FITFIRE® Eco is designed to facilitate the installer’s work and ensure minimal disruption for building occupants.
First, the liner is inserted into the existing duct and inflated with forced air and high-pressure steam. This process allows the composite material to perfectly shape against the internal walls, adhering and hardening to form a new continuous lining that is resistant to acid condensate.
This process does not require masonry work or external anchoring: in just a few steps, you obtain a renewed duct, ready for use and, above all, fully compliant with regulations.
Do you want to learn how to best install FITFIRE® and HT1000 solutions? Get in touch with our experts to book a targeted and comprehensive training course. Or request your supply today.

