Pellet Boilers

Interio

18 kW
25 kW
The modern-designed Interio boiler is intended for users with limited space. Its installation requires only 1 m².
A+
Energy class
5+1
Years of Warranty
1m²
Required space

If you need a quality and reliable boiler but lack space, the Interio is the right solution. The small dimensions of this boiler allow it to fit into even the smallest rooms. Beyond its specific size, the Interio features top-quality construction — a cast iron pellet burner ensures complete combustion and flawless ignition. The boiler comes equipped with a pump, expansion vessel and safety valve, making it extremely easy to install. With its built-in tubular heat exchanger cleaning system, the Interio allows for easy maintenance and cleaning.

Product video

Features

Big Performance in a Small Space

— 01

Digital Regulation

The digital regulation system continuously manages combustion. The control software adapts to conditions, providing minimal fuel consumption and optimal gas emissions.
— 02

WiFi Control

The boiler can be controlled remotely. You can connect a room thermostat or WiFi module for monitoring and control.
— 03

Automatic Regulation

As the set temperature is approached, the regulation reduces power output and pellet consumption, resulting in lower fuel usage and optimal gas emissions.
— 04

Cast Iron Burner

The pellet combustion burner is cast from iron, providing complete combustion and flawless ignition.

Advantages

Additional Features

Everything you need to know about the Interio boiler and its advantages for your home.
  • Quick installation and setup
  • Automatic regulation with weekly programming
  • Ideal choice for small utility rooms due to compact size
  • Built-in circulation pump, expansion vessel and safety valve
  • Easy cleaning and maintenance
  • Minimal harmful gas emissions

Technical details

Technical documentation, certificates and user manuals
Unit of measurement Interio 18 Interio 25
Boiler weight kg 256 256
Heat power range kW 5.7-18.7 5.7-25
Boiler water capacity L 40 40
Minimum chimney vacuum Mbar/Pa 0.05/5 0.05/5
Inlet/Outlet " 1" 1"
Fume gases temperature °C cca 160 cca 160
Max. working temperature °C 80 80
Max. working pressure Bar 2.5 2.5
Height to flue pipe mm 286 286
Boiler depth mm 785 785
Boiler width mm 610 610
Boiler height mm 1280 1280
Flue pipe diameter mm 80 80
Inlet/Outlet height mm 680/185 680/185
Pellet tank volume kg 42 42
El. power supply V; Hz 230V; 50Hz 230V; 50Hz
El. power consumption nominal/max. W 100/420 100/420
Min./Max. outlet water temperature °C 55/80 55/80
Pellet consumption min./max. kg/h 1-3.6 1-4.6
Fuel - pellet pellet
Flue pipe direction - back back
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Downloads

Technical documentation, certificates and user manuals

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