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Comparison BAXI Main 5 24 F 24 kW vs Westen Quasar D 24Fi 24 kW
230 V

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BAXI Main 5 24 F 24 kW
Westen Quasar D 24Fi 24 kW 230 V
BAXI Main 5 24 F 24 kWWesten Quasar D 24Fi 24 kW
230 V
from $442.64 up to $569.04
Outdated Product
from $463.64 up to $539.76
Outdated Product
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Energy sourcegasgas
Installationwallwall
Typedual-circuit (heating and DHW)dual-circuit (heating and DHW)
Heating area144 m²180 m²
Technical specs
Heat output24 kW24 kW
Power supply230 V230 V
Power consumption110 W130 W
Coolant min. T35 °С30 °С
Coolant max. T80 °С76 °С
Heating circuit max. pressure3 bar3 bar
DHW circuit max. pressure8 bar8 bar
Consumer specs
DHW min. T35 °С35 °С
DHW max. T55 °С55 °С
Performance (ΔT=25°C)13.7 L/min13.7 L/min
Performance (ΔT ~30 °C)9.8 L/min9.8 L/min
"Summer" mode
Heated floor mode
Circulation pump
Boiler specs
Efficiency90.6 %90.6 %
Combustion chamberclosed (turbocharged)closed (turbocharged)
Flue diameter
60/100 mm /80/80 for split flue/
60/100 mm /80/80 for split flue/
Inlet gas pressure20 mbar20 mbar
Max. gas consumption2.78 m³/h
Expansion vessel capacity6 L6 L
Expansion vessel pressure0.8 bar1 bar
Connections
Mains water intake1/2"
DHW flow1/2"
Gas supply3/4"
Central heating flow3/4"
Central heating return3/4"
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
 
frost protection
More specs
Dimensions (HxWxD)730x400x299 mm730x400x299 mm
Weight27 kg31 kg
Added to E-Catalogdecember 2013august 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.

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.

Coolant min. T

The minimum operating temperature of the heat medium in the boiler system when operating in heating mode.

Coolant max. T

The maximum operating temperature of the heat medium in the boiler system when operating in heating mode.

"Summer" mode

It is an operating mode designed for the warm season. In this mode, it works only to provide domestic hot water, and the heating is turned off. If the boiler is equipped with an outside temperature sensor, this sensor is also switched off in summer mode so that the heating does not turn on at night when the outside temperature drops.

Max. gas consumption

Maximum gas consumption in the boiler with the corresponding energy source (see above). Achieved when the gas heater is operating at full capacity; with reduced power and consumption, respectively, will be lower.

Note that boilers of the same power may differ in gas consumption due to the difference in efficiency. While the more fuel-efficient models tend to cost more, the price difference pays off in gas savings.

Expansion vessel pressure

It is a pressure in the hermetically sealed part of the expansion vessel (for details on the design, see Expansion vessel capacity). The required pressure in the expansion vessel must be approximately 0.3 bar higher than the initial pressure in the system. The initial pressure, in turn, directly depends on the total height of the heating system or, rather on the difference between the height of the highest and lowest points of the heating system. It can be derived using the approximate formula P=H/10, where P is the initial pressure in the bar, and H is the height difference between the highest and lowest point of the system in metres. Thus, if the height difference is 2 m, the initial pressure in the system is 0.2 bar, and the pressure in the expansion tank must be at least 0.5 bar.

Mains water intake

The diameter of the pipe for connecting the pipe through which cold water is supplied to the boiler for heating and use in the hot water supply system.

Diameters are indicated in inches. It is allowed to connect a pipe of a different diameter through an adapter, but the best option is still a match in size. There are connection options 1/2", 3/4", 1" and 1 1/2".

DHW flow

The diameter of the pipe for connecting the pipe through which hot water leaves the boiler for the DHW system.

Diameters are indicated in inches. It is allowed to connect a pipe of a different diameter through an adapter, but the best option is still a match in size.
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