Welcome at the website HKS Lazar,
manufacturer of top technology heating systems.

COSTA pellet stove

We temporarily stop selling COSTA stoves.

New release soon!


High efficiency

Modern regulation and special construction ensures high efficiency which enables rapid production of large amounts of hot air and a lot of savings.

The clean glass

Special design of the combustion chamber, multi-modulation and soft start system ensures that the glass is clean and allows long to enjoy the view of the flames.

Modern control

Multi-modulation system, soft start, night mode, ECO mode, weekly schedule and remote control in standard ensure easy and user-friendly operation.

Silent system

High quality components such as muted motor gear or cross flow blower ensures quiet operation of the stove.


Available colors:

Bordo - RAL 3004
Antracit - RAL 9005
Vanilla - RAL 1015

Stove Costa Stove Costa Stove Costa Stove Costa Stove Costa
in construction

Thermal parameters - technical

Heating efficiency: % 85,5
Nominal output: kW 7,5
Total nominal output with reduced power: kW 4
Fuel intake at nominal power: kg/h ok. 1,8
Exhaust outlet diameter ext.: mm 80
Average exhaust temperature at nominal output °C 190
Average exhaust temperature at reduced output: °C 125
Exhaust flow at the nominal output: g/s 7
CO emission at the nominal output (13% O2) : mg/m³ 233
Required chimney draught: Pa/mbar 1 ÷ 5 / 0,01 ÷ 0,05
Noise level: dB  below 75
Additive voltage:   1 PEN ~50Hz 230V TN-S
Electrical insulation:   IP 20
Electric power consumption – fans and motoreducer: W 135
Electric power consumption – lightener: W 170
Ambient temperature: °C 15 ÷ 40
Humidity: % 10 ÷ 90% relative humidity without condensation


Height: mm 930
Width: mm 500
Depth: mm 520




Pellet boilers at the fair in Greece

In Thessaloniki we showed modern pellet boilers - SmartFire.

Pellet boilers at the fair in Germany

In Hofheim Wallau we showed the latest pellet boilers - SmartFire.
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