Gas-fired air heaters - EOLO models Systema Polska

Blow heating - an effective way to heat large areas

Blow heating is one of the most popular ways of heating medium- and large-scale buildings, i.e. wherever conventional heating systems are ineffective and the costs of such heating are disproportionate to the results obtained.

The source of heat energy is liquid or liquefied gas, which is burned in a heat exchanger. The heat exchanger is installed in a special section with a fan or fans on one side. The forced air flow around the exchanger causes it to heat up. Gas-fired air heater transports heated air directly or indirectly through ducts into the facility.

A seemingly simple solution blow heating through gas heaters, requires in addition to the correct selection of a number of components in order to obtain the final product - gas air heaters. Definitely, gas air heater should not only meet the expectations of the users of the heated facilities or of tenants and investors. Another important aspect is the eco-design requirements ErP2018 i.e. EU Commission Regulation 2016/2281 of 30.11.2016 concerning the seasonal energy efficiency of space heating by first stage heating products, which must be ≥ 72% with NOx emissions ≤ 100

How important is the equipment?

The basic equipment of the heater consists, among other things, of a burner, a burner controller, an exchanger, a fan and a thermostat. The choice of individual components determines the parameters achieved by the unit.

Gas air heaters vs heat exchanger

Starting with the heat exchanger. Depending on the heat exchanger used - with or without condensate drainage. For example, when a heat exchanger with condensate drainage is used, the heater burner modulates the heat output from 30% to 100% nominal output. When an exchanger without condensate drainage is fitted, then the capacity modulation ranges from 60- 100%. This means that an air heater with a heat exchanger with condensate discharge is far more flexible and adapts to changing power requirements, due to changing seasons and the temperature outside the heated building.

The type of heat exchanger installed is extremely important in view of the changing Ecodesign requirements from January 2021. The seasonal energy efficiency for gas air heaters should be no less than 78% with NOx emissions of less than 70 mg/kWh.

Eco-design requirements ErP2021 eliminate gas-fired air heaters with exchanger without condensate drainage. The seasonal energy efficiency values are definitely oscillating below the applicable values from January 2021. This means that virtually only gas air heater equipped with an exchanger with condensate drainage will meet the requirements of the ErP2021.

Systema Polska is fully prepared for the demands of the market. Gas-fired air heaters of the series EOLO BC with exchangers with condensate discharge have seasonal energy efficiency values above 78% with NOx emissions below 70 mg/kWh.

Gas-fired air heaters and burner type

EOLO gas air heaters are equipped with a Premix burner. The burner head design has been patented by Systema Polska and represents technological know-how available only to them. Depending on the heat exchanger used, the Premix burner allows performance modulation within a different range.

Gas-fired air heaters and fan type

An extremely important component of the heaters is the fan. The type of fan determines the maximum airflow of the heater and the electricity consumption. Gas-fired air heaters  Systema Polska can be equipped with axial fans - AE series or centrifugal fans - AC series. Currently, the company offers axial fans with an EC motor, due to the possibility of modulating the air flow. The main aspect, however, is the possibility of saving the electricity consumed. Gas air heaters with axial fans with EC motor equipped with a condensate removal exchanger are produced as standard.

Gas-fired air heaters and the method of installation

Standard air heaters gas-fired systems are installed inside buildings. The method of installation is determined by architectural considerations, or requirements for installation height in relation to floor and ceiling level. Mounting using mounting bases is customary. In addition to standard gas heaters for installation using mounting bases, Systema Polska's product portfolio includes specially developed gas heaters for indoor installation. underfloor gas-fired air heaters - EOLO PS.

Systema Polska's portfolio also includes  gas-fired air heaters, that are designed for outdoor installation. All Systema Polska gas heaters with the EOLO MIX designation are installed outdoors, on the outside wall of the building. The special design and insulated walls of the heaters allow the heated air to be transported directly into the buildings or through ducts.

Complementary products

Gas-fired air heaters require a number of additional accessories, which are necessary for several reasons. One of these, for example, is mounting. Systema Polska has designed special mounting bases for its heaters. Customers can also choose the right type of external air intakes or air filters.

Systema Polska also offers a number of versions of mixing chambers manufactured in its production facility. The mixing chamber version C is designed for air intake from below, the mixing chamber version D is designed for air intake from above. If an external air intake is used, the best solution would be to choose mixing chamber type E.

Systema Polska gas-fired air heaters - portfolio

Systema Polska offers a wide portfolio of gas-fired air heaters, which consists of more than 80 models with nominal outputs from 15 kW to 100 KW. Depending on customer requirements, the air heater leader supplies air heaters with several fan types. The portfolio is complemented by a range of complementary products.

More information can be found on our web pages with portfolio presentation.