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Comparison Immergas EOLO Star 24-4 E 23.8 kW
230 V
vs Immergas EOLO Star 24-3 E 23.4 kW
230 V

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Immergas EOLO Star 24-4 E 23.8 kW 230 V
Immergas EOLO Star 24-3 E 23.4 kW 230 V
Immergas EOLO Star 24-4 E 23.8 kW
230 V
Immergas EOLO Star 24-3 E 23.4 kW
230 V
Outdated Product
from $385.25 up to $479.52
Outdated Product
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Energy sourcegasgas
Installationwallwall
Typedual-circuit (heating and DHW)dual-circuit (heating and DHW)
Heating area190 m²176 m²
Technical specs
Heat output23.8 kW23.4 kW
Min. heat output6.8 kW
Power supply230 V230 V
Power consumption130 W135 W
Coolant min. T35 °С35 °С
Coolant max. T80 °С80 °С
Heating circuit max. pressure3 bar3 bar
DHW circuit max. pressure10 bar8 bar
Consumer specs
DHW min. T35 °С35 °С
DHW max. T55 °С55 °С
Performance (ΔT=25°C)11.1 L/min11.1 L/min
"Summer" mode
Circulation pump
Boiler specs
Efficiency93.4 %93.4 %
Combustion chamberclosed (turbocharged)closed (turbocharged)
Flue diameter60/100 mm60/100 mm
Inlet gas pressure13 mbar13 mbar
Max. gas consumption2.7 m³/h2.7 m³/h
Expansion vessel capacity6 L6 L
Expansion vessel pressure1 bar1 bar
Connections
Mains water intake1/2"1/2"
DHW flow1/2"1/2"
Gas supply3/4"3/4"
Central heating flow3/4"3/4"
Central heating return3/4"3/4"
Safety
Safety systems
gas pressure drop
water overheating
flame loss
draft control
water circulation failure
frost protection
gas pressure drop
water overheating
flame loss
draft control
water circulation failure
frost protection
More specs
Dimensions (HxWxD)756x440x240 mm786x440x240 mm
Weight29 kg29 kg
Added to E-Catalognovember 2017june 2012

Heating area

A very conditional parameter that slightly characterizes the purpose based on the size of the room. And depending on the height of the ceilings, layout, building design and equipment, actual values may differ significantly. However, this item represents the maximum recommended area of the room that the boiler can effectively heat. However, it is worth considering that different buildings have different thermal insulation properties and modern buildings are much “warmer” than 30-year-old and especially 50-year-old houses. Accordingly, this item is more of a reference nature and does not allow us to fully assess the actual heated area. There is a formula by which you can derive the maximum heating area, knowing the useful power of the boiler and the climatic conditions in which it will be used; For more information on this, see "Useful Power". In our case, the heating area is calculated using the formula “boiler power multiplied by 8”, which is approximately equivalent to use in houses that are several decades old.

Heat output

It is the maximum useful power of the boiler.

The ability of the device to heat a room of a particular area directly depends on this parameter; by power, you can approximately determine the heating area, if this parameter is not indicated in the specs. The most general rule says that for a dwelling with a ceiling height of 2.5 – 3 m, at least 100 W of heat power is needed to heat 1 m2 of area. There are also more detailed calculation methods that take into account specific factors: the climatic zone, heat gain from the outside, design features of the heating system, etc.; they are described in detail in special sources. Also note that in dual-circuit boilers (see "Type"), part of the heat generated is used to heat water for the hot water supply; this must be taken into account when evaluating the output power.

It is believed that boilers with a power of more than 30 kW must be installed in separate rooms (boiler rooms).

Min. heat output

The minimum heat output at which the heating boiler can operate in constant mode. Operation at minimum power allows you to reduce the number of on-and-off cycles that adversely affect the durability of heating boilers.

Power consumption

The maximum electrical power consumed by the boiler during operation. For non-electric models (see Energy source), this power is usually low, as it is required mainly for control circuits and it can be ignored. Regarding electric boilers, it is worth noting that the power consumption in them is most often somewhat higher than the useful one since part of the energy is inevitably dissipated and not used for heating. Accordingly, the ratio of useful and consumed power can be used to evaluate the efficiency of such a boiler.

DHW circuit max. pressure

The maximum pressure in the hot water circuit (DHW) at which it can operate for a long time without failures and damage. See "Heating circuit maximum pressure".
Immergas EOLO Star 24-4 E often compared
Immergas EOLO Star 24-3 E often compared