Synergy of correctly selected details

KSR Beta boilers can be reliably used in everyday operation. Design of body and heat exchanger [1] ensures the most effective transfer of heat, tightness for many years of operation and high reliability. It results from use of the high-quality materials and components already proven in operation. Eco-pea coal is a primary fuel for the KSR Beta series equipped with a retort burner PSR [2].

Economical operation due to advanced technology

These boilers are convenient and convenient in operation. Using the retort burner [3], binary controller and fan, improves the efficiency, lowers failure frequency and significantly shortens the time necessary for servicing of the equipment. ecoMAX 910 [4] controller continuously takes care of the combustion process ensuring optimum dosing of fuel and inflow of air. It controls also the operation of four pumps: central heating, domestic hot water, circulation pump and pump of the mixer. Precise control ensures obtaining the set temperature using the lowest portions of the fuel, what causes that the equipment is one of the cheapest in operation. The KSR Beta boilers can be additionally equipped with the Internet modules responsible for remote control. While installation of the additional automatic suppression system (so-called “fire-fighter”) allows combustion of the pellet.

Safe combustion process

Several temperature sensors ensure maximally safe operation of the boiler. If the too high level of heat (85-90°C) is recorded then they initiate alarm signal and shutdown of the feeder and fan. Pumps are activated in case of a sudden increase in temperature and they distribute hot water through the system. The equipment reacts also to overheating of the screw in the feeder, lack of fuel and a problem with reaching the set temperature. A split pin located in the feeder protects the motoreducer and it will be ruptured when the screw is locked protecting the boiler against destruction.

Primary fuel: ECO-PEA COAL

Eco-pea coal is a coal with a grain size 5-25 mm intended for modern boilers with a retort feeder. It characterizes with high calorific value and low content of sulphur and ash. This product is produced from selected coals with the best available parameters.

high power and small dimensions

PEREKO boilers have high heating power with relatively small dimensions. It is also possible to install them in smaller boiler rooms.

easy cleaning

Vertical shelves in the heat exchanger allow easy cleaning of boiler interior.

intuitive controller operation

Professional controller individually adapted for each boiler. Its operation does not require professional knowledge from the user.

PSR burner

It ensures clean combustion and non-disturbed operation. PSR feeder is intended for use of eco-pea coals and pellets with granulation not greater than 31.5 mm.

option to operate via the internet

An additional module allows controlling operation of the boiler via the internet.

Parameter Unit Model
15 20 25 28 35 50 70
Dimensions D [mm] ∅ 159 ∅ 178 ∅ 219
E [mm] 248 × 173 298 × 198 348 × 248
L1 [mm] 110 150
L2 [mm] 220
L [mm] 495 525 595 675 870
H [mm] 1275 1385 1410 1565 1770
H1 [mm] 1065 1155 1180 1335 1530 1520
H2 [mm] 310 320
H3 [mm] 1140 1560 1600
S [mm] 460 510 590 700 720
S1 [mm] 600 650 900
Primary fuel eco-pea coal
Range of thermal power* [kW] 4 – 15 5 – 20 6 – 25 8 – 28 10 – 35 15 – 50 21 – 70
Area of heated rooms** [m²]

do 273

do 364

do 455

do 509

do 636

do 909

do 1273

Heated rooms volume [m³]

do 682

do 909

do 1136

do 1273

do 1591

do 2273

do 3182

Charging capacity of container [dm³] 150 300 900
Boiler water tank capacity [dm³] 52 70 75 96 102 130 152
Heat exchanger material Steel P265GH [PN-EN 10028]; thickness 5 and 6 mm
Maximum working pressure [bar] 1,5
Required min. chimney draught*** [Pa] 20 25 30
Power supply / Power [V/W] 230 / 175
Weight of boiler without water [kg] 264 348 377 419 456 623 763
Energy-efficiency rating D
Control controller ecoMAX 910
Additionally as a standard emergency cast-iron grate
Burner PSR
Additional equipment
  • 10-year warranty for tightness of welds
  • 6-year warranty for tightness of heat exchanger
  • 2-year warranty for components
*maximum water temperature in the boiler – 95°C; **or rooms height 2.5 m and insulation with styrofoam 15 cm (q = 55 W/m²); ***PN-EN 12809, PN-EN 303-5:2002;
The manufacturer reserves the right to introduce structural changes.