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BAXI LUNA Duo-tec 24 21.8 kW

Photos - Boiler BAXI LUNA Duo-tec 24 21.8 kW
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Energy source: gas; Installation: wall; Type: dual-circuit (heating and DHW); Heating area (m²): 174; Condensing; Heat output (kW): 21.8; Coolant min. T (°C): 25; Coolant max. T (°C): 80; DHW min. T (°C): 35; DHW max. T (°C): 60; Performance (ΔT=25 °C) (L/min): 13.8; Heated floor mode
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BAXI LUNA Duo-tec 24 21.8 kW
Energy source:gas
Mount:wall, dual-circuit
Boiler power:21.8 kW, area ~ 174 m²
Combustion chamber:closed
DHW temperature:from 35 °С, up to 60 °С
The boiler remains operational at a reduced gas pressure of up to 5 mbar.
All specifications
Specifications LUNA Duo-tec 24
Main
Energy sourcegas
Installationwall
Typedual-circuit (heating and DHW)
Heating area174 m²
Condensing
Technical specs
Heat output21.8 kW / for DHW 24.7 kW /
Min. heat output3.7 kW
Power supply230 В
Power consumption102 W
Coolant min. T25 °С
Coolant max. T80 °С
Heating circuit max. pressure3 bar
DHW circuit max. pressure8 bar
Consumer specs
DHW min. T35 °С
DHW max. T60 °С
Performance (ΔT=25°C)13.8 L/min
Performance (ΔT ~30 °C)9.8 L/min / at Δt =35 °C /
"Summer" mode
Heated floor mode
Circulation pump
Boiler specs
Efficiency107.6 % / at 30% power /
Combustion chamberclosed (turbocharged)
Inlet gas pressure20 mbar
Max. gas consumption2.61 m³/h
Expansion vessel capacity8 L
Expansion vessel pressure0.8 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)763x450x345 mm
Weight38.5 kg
Added to E-CatalogMarch 2013
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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good model, liked it
27 January 2018 
I believe that heating equipment is not something that needs to be saved on. Moreover, this thesis is especially important if the heating is gas. Gas is expensive and it is important that the boiler uses it as efficiently as possible.
This is a premium double-circuit condensing boiler. It differs from cheaper analogs by very high efficiency. Due to the fact that it can use the latent heat of condensation of water vapor in flue gases, the efficiency of such a boiler is 1.08 times higher than that of a conventional one. Despite the insignificance of this factor, I want to say that this is 1/12 part. That is, more than half of the monthly gas norm is saved during the heating season. My house is large and we use hot water actively, so the savings come out quite significant. The boiler has a modern regulatory intelligent control system and is able to finely modulate the heat output of the burner. In addition, it is equipped with a remote control unit and an outdoor temperature sensor, which I hung on the north side of the house. Now he himself can regulate the heat supply to the batteries and the gas flow, depending on the weather conditions and the desired room temperature. It really works and also helps to save money. Since this boiler was made in Italy, the company's warranty for it is corresponding, three years.
Very high cost. Initially, I expected to fit into the budget of $ 1000, but it had to be greatly exceeded. However, the way this boiler works cannot but rejoice and, in the end, its high cost over 3-4 years will be completely covered by high efficiency. When operating in high power mode, a lot of condensate is formed. Due to the flow heat exchanger of the hot water circuit, the boiler cannot produce hot water in a thin stream. The minimum flow rate is 2l/min.
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Batteries, "warm floor" and hot water in the tap

The wall-mounted boiler BAXI LUNA Duo-tec 24 is suitable for heating houses or apartments up to 174 m², as well as heating water for east european needs. Like other condensing type devices, it has a high efficiency (107.6%), which ensures economical operation (gas consumption in full load mode does not exceed 2.61 m³ / h). Due to the continuous electronic modulation of the burner, the device has a wide operating temperature range (25 – 80 °C). Therefore this copper can work in the low-temperature mode necessary for heating systems like "heat-insulated floor".

Flexible settings

In terms of the flexibility of settings, BAXI boilers of the LUNA Duo-tec series can give odds to equipment from other manufacturers. They, for example, have built-in automation with a room thermostat (so you won't need to buy additional accessories and sensors for a fee to auto-adjust the temperature in your house). In addition, on-board electronics allows you to control multi-temperature zone systems.

"Old-timer", trustworthy

We can say about the BAXI LUNA Duo-tec 24 device that it is a time-tested technique (it has been produced for almost 10 years). This model is well known to service engineers (like many other boilers, BAXI heating equipment needs annual scheduled maintenance to maintain the warranty) and does not cause problems for users. The boiler is well adapted to east european realities. It can work even at low gas pressure in the pipe (down to 5 mbar, which is about two to three times less than normal pressure). It can also be converted to propane if you use bottled gas.