on sale from September 2026
Slim gas heaters

EOLO BCX Slim

The EOLO SX Slim Series are innovative condensing heaters that combine compact dimensions with exceptional energy efficiency. Ideal for locations with limited space, they provide comfort and significantly reduce heating costs.
Gas heater

EOLO BCX Slim

Heaters EOLO SX Slim Series is a slender and highly efficient equipment. They are designed for heating production halls, warehouses, workshops, as well as commercial and service facilities, particularly where the The priority is to make optimum use of space. Thanks to their compact dimensions and outputs ranging from 15 to 45 kW, they fit perfectly into a wide variety of projects, delivering fast and evenly heated air.

Why EOLO BCX Slim

Properties

EOLO SX Slim offers rated thermal output from 15 to 45 kW i minimum of 4 to 9 kW. It stands out for its impressive combustion efficiency (up to 108.7% at minimum power). The equipment is compatible with various types of gas (natural E/Lw/Ls, Propane) and are equipped with axial fans (AE Series) with airflows of up to 6000 m³/h.

Heating power

20-50 kW

Condensate

With condensate drainage

NOx

< 50 mg/kWh

Polish Production

Burner with control system

Type „M” radiating tube (emitter)

Bracket

Infrared screen

Exhaust fan

How does it work?

Construction of EOLO BCX Slim

EOLO SX Slim is characterised by compact, slim design.
Inside there is modulating Premix burner i plate heat exchanger, which recovers condensation heat from the flue gases, increasing efficiency. Axial fan forces air to circulate. The unit contains VK4205 gas block, NRG 118 blower and BRAHMA TC340P burner controller.

Technical table

Technical data

Check the technical data of the device.
EOLO BCX SLIM
SX 20
SX 30
SX 40
SX 50
Category - types of gas

II 2ELwLs3PB/P
II 2ELwLs3PB/P
II 2ELwLs3PB/P
II 2ELwLs3PB/P
Type of flue outlet

B23-C13-C33-C53
B23-C13-C33-C53
B23-C13-C33-C53
B23-C13-C33-C53
Rated heat output
kW (Hi)
15
25
35
45
Minimum heat output
kW (Hi)
4
6
7
9
Combustion efficiency min/max
%
108.7 / 97.6
108.1 / 97.2
108.0 / 96.7
108.0 / 96.2
Gas connection diameter
inch
3/4"
3/4"
3/4"
3/4"
Diameter for flue gas / air intake
mm
80/120
80/120
80/120
80/120
Electricity supply
V/Hz
230/50
230/50
230/50
230/50
Operating temperature
°C
-15 - +40 
-15 - +40 
-15 - +40 
-15 - +40 
Max. condensate volume (BC versions)
l/h
0.5
0.4
1.0
1.1
AE SERIES WITH AXIAL FANS
Electrical power
W
160
240
250
420
Number of fans
n.
1
1
2
2
Fan diameter (standard version)
mm
350
350
350
350
Air flow
m3/h
2 100
3 200
4 600
6 000
Temperature rise min/max BC
°C
6/21
5/23
5/22
5/23
Horizontal blowing range
m
10
13
17
19
Gas block

VK4205
VK4205
VK4205
VK4205
Gas blower

NRG 118
NRG 118
NRG 118
NRG 118
Burner controller

BRAHMA TC340P
BRAHMA TC340P
BRAHMA TC340P
BRAHMA TC340P
Why EOLO BCX Slim?

Why is EOLO BCX Slim the ideal choice for your project?

Exceptional condensing efficiency

Combustion efficiencies of up to 108.7% translate into minimal gas consumption, offering the greatest savings in heating costs.
z-axis

Compact dimensions

The slim design of the SX Slim series allows installation even in small spaces where standard heaters would be too large.

Fuel versatility

The possibility of supplying different types of gas (natural gas, propane) provides flexibility in the choice of energy source, adapting to local conditions.

Precise heat control

A wide range of power modulation from 4 kW to 45 kW allows capacity to be precisely matched to current demand, preventing overheating.
smoke

Clean and safe heating

As a condensing heater with a closed combustion chamber, it provides clean, fume-free air that is safe for health and the environment.
Choose EOLO BCX Slim

Choose EOLO BCX Slim

Opt for economy and compactness! Choose the EOLO Slim BCX Series! Contact Systema Polska for a personalised offer!

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