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Hotpoint-Ariston Clas One 24 RDC 24.4 kW (3301017)

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Economical and efficient double-circuit gas boiler with condensing heat transfer principle for wall mounting. Compared to conventional double-circuit boilers, it demonstrates significantly higher energy efficiency, is able to provide gas savings of 7-8% with comparable heat transfer. It is distinguished by the presence of an additional stage of flue gas cooling, which makes it possible to use the heat of condensation of water vapor formed during the combustion of fuel. It is equipped with a closed combustion chamber and a system for the forced removal of combustion products by a turbofan, thanks to which it is possible to install the device directly in a residential area. The Hotpoint-Ariston Clas One 24 RDC boiler is positioned as a product of the middle price category, designed to organi...ze heating and hot water supply in houses and apartments with a total area of up to 195 m². It can heat hot water up to 14.5 L / min (with a temperature difference of 25 °C inlet-outlet), which is quite enough to meet the needs of a family of 4-6 people. The boiler is equipped with a modulating burner with an extended power control range, which further increases the flexibility and efficiency of using natural gas. The microprocessor control system has an informative display and an intuitive interface. It is possible to connect an external thermostat-programmer.
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Hotpoint-Ariston Clas One 24 RDC 24.4 kW
Energy source:gas
Mount:wall, dual-circuit
Boiler power:24.4 kW, area ~ 195 m²
Combustion chamber:closed, flue 60/100 mm
DHW temperature:from 36 °С, up to 60 °С
Stainless steel heat exchanger. Hot start function. Stylish design. Can run on propane. Quiet work.

Economical and efficient double-circuit gas boiler with condensing heat transfer principle for wall mounting. Compared to conventional double-circuit boilers, it demonstrates significantly higher energy efficiency, is able to provide gas savings of 7-8% with comparable heat transfer. It is distinguished by the presence of an additional stage of flue gas cooling, which makes it possible to use the heat of condensation of water vapor formed during the combustion of fuel.

It is equipped with a closed combustion chamber and a system for the forced removal of combustion products by a turbofan, thanks to which it is possible to install the device directly in a residential area. The Hotpoint-Ariston Clas One 24 RDC boiler is positioned as a product of the middle price category, designed to organize heating and hot water supply in houses and apartments with a total area of up to 195 m².

It can heat hot water up to 14.5 L / min (with a temperature difference of 25 °C inlet-outlet), which is quite enough to meet the needs of a family of 4-6 people. The boiler is equipped with a modulating burner with an extended power control range, which further increases the flexibility and efficiency of using natural gas. The microprocessor control system has an informative display and an intuitive interface. It is possible to connect an external thermostat-programmer.

All specifications
Specifications Clas One 24 RDC
Main
Energy sourcegas
Installationwall
Typedual-circuit (heating and DHW)
Heating area195 m²
Condensing
Technical specs
Heat output24.4 kW
Min. heat output4.1 kW
Power supply230 V
Power consumption104 W
Coolant min. T35 °С
Coolant max. T82 °С
Heating circuit max. pressure3 bar
DHW circuit max. pressure7 bar
Consumer specs
DHW min. T36 °С
DHW max. T60 °С
Performance (ΔT=25°C)14.5 L/min
Performance (ΔT ~30 °C)10.4 L/min / at ∆Т=35 °С /
"Summer" mode
Warm start
Circulation pump
Control busBus BridgeNet
Boiler specs
Efficiency109.8 % / at 30% power /
Combustion chamberclosed (turbocharged)
Flue diameter60/100 mm
Max. gas consumption2.75 m³/h
Expansion vessel capacity8 L
Expansion vessel pressure1 bar
Heat exchangerstainless steel
Connections
Mains water intake1/2"
DHW flow1/2"
Gas supply3/4"
Central heating flow3/4"
Central heating return3/4"
Safety
Safety systemsgas pressure drop
water overheating
flame loss
draft control
water circulation failure
frost protection
More specs
Dimensions (HxWxD)770x400x315 mm
Weight29.7 kg
Added to E-Catalogmarch 2018
P/N
3301017

Information in model description is for reference purposes.
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Boiler of the highest class (in terms of efficiency)

The Hotpoint-Ariston Clas One 24 RDC boiler has a power of 24.4 kW. It can heat a house (up to 195 m²) and at the same time provide hot water for everyone living in it. At full load, gas consumption does not exceed 2.75 m³/h. But, of course, it is not necessary to work "to the fullest" of the boiler. Thanks to the burner with continuously adjustable power, it can be adjusted to work in any mode. If you install outdoor and indoor sensors (purchased separately) and "hook" them through the built-in bus, the boiler will automatically "adjust" to the weather outside and the microclimate in the house, and its energy efficiency will reach a high class A +.

A sea of advantages

Of the features of this boiler, it should be noted the presence of the "hot start" function (after 5 seconds from the moment the tap is opened, hot water flows from it) and a complete set of various protection systems. In terms of reliability, the device can please with a durable stainless steel heat exchanger. The manufacturer gives a guarantee for it for 10 years (that is, for the entire estimated service life of the equipment), and for the boiler as a whole — 3 years. It is interesting to note that the boiler can operate not only on ordinary gas, but also on bottled gas (but a conversion from methane to propane is required, which must be performed by a certified specialist).

Elegance and comfort

Ariston boilers always have beautiful front panels. This device is no exception. Thanks to a strict but stylish design, it will fit perfectly into a modern furniture set if you put it in the kitchen. At the same time, the Hotpoint-Ariston Clas One 24 RDC boiler pleases not only the eyes, but also the ears. It has an air intake silencer and a modulated fan that can change the rotation speed. Therefore, the boiler, despite its decent power, works quietly and quietly — almost silently.

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Clas One 24 RDC