Including thermostatic valve and energy-efficient pump for DIY installation.



Boiler model: SF22, SF31, SF41

Boiler model: Pellet Focus 21

Boiler model: SF11

Boiler model: SF Compact 11/15

Modern plumbing sets make it possible to combine several different heat sources in one installation and conveniently create separate heating zones in the building. This gives a high level of efficiency of the entire system and allows you to significantly reduce heating costs.

Our plumbing kits make it much easier to create a heating system that uses both pellet stoves and heat pumps. A 1-3-circuit manifold works very well in this role, as it will enable the creation of 3 heating circuits in the building. This, in turn, gives us a wide selection of the appropriate type of heating that we want to use in individual rooms, depending on our own needs. It allows you to choose, for example, underfloor heating, if you want to use it only in the part of the building covered by one circuit.

The creation of several circuits with separate pumps and temperature sensors is a cost-effective and environmentally friendly solution. It gives great flexibility in the use of various energy sources, such as a heat pump or pellet stoves, allowing you to control the consumption on an ongoing basis, and thus the amount of costs incurred for heating the house.

We also offer classic hydraulic kits with a thermostatic valve that allow you to easily connect to pellet boilers and further save thanks to the control of energy consumption using an energy-saving electronic pump.

Modern heating devices HKS Lazar

Modern heating devices


Propane R 290 as a refrigerant in heat pumps, and applicable legal regulations

Observing the heat pump industry in recent years, we can confidently say that more and more people are becoming convinced of this form of heating. This happens, inter alia, because we are eager to build houses of a small size, without cellars, and therefore also a place for a central heating boiler. and fuel for it.

Class 5 and EkoDesign provides a new benchmark for central heating boilers

Unfortunately Poland has some of the worst air quality in Europe. The extent of the problem has been confirmed by World Health Organization Report based on data regarding the beginning of 2016. An astonishing 33 of Europe’s 50 most-polluted towns are in Poland and Polish town was ranked as the most polluted, what confirms how serious and huge is the problem.



How to check anti-freeze fluid level in Smart Fire 11 boiler with central heating function only (without hot domestic water supply). The boiler was not used this winter?

Any fluid loss will be demonstrated with pressure loss indicated by manometer. In case of open circuit, you can also check the level of compression vessel.

Is 190oC temperature of flue gas in Lazar branded pellet fired boiler allowed?

This temperature is possible, if the heat exchanger gets dirty and boiler has been in operation for few hours at total output (at low outdoor temperature). In this case clean the boiler and check...



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