A gas boiler BAXI LUNA Duo-tec 40

High-performance double-circuit gas boiler with a closed combustion chamber and the condensing principle of flue gas heat extraction. It is characterized by high energy efficiency and relatively compact dimensions, allowing it to be installed in confined spaces. It is positioned as a product of the upper price category with a high net power (40 kW). Designed for organizing heating and hot water supply in detached houses and cottages, large multi-room apartments, office and utility rooms with an impressive area of up to 300 m2.

Thanks to the closed combustion chamber and the forced smoke exhaust system, the BAXI LUNA Duo-tec 40 boiler can be installed directly in residential areas. Compared to classic double-circuit boilers, it has a noticeably higher efficiency, which, with the same power, saves about 6% of gas. This effect is achieved due to the additional cooling of the combustion products, which makes it possible to extract the latent heat of condensation of water vapor.

Both heat exchangers of the device are made of AISI 316L chromium-nickel-molybdenum stainless steel. The boiler ensures quick availability of hot water, and its supply can reach an impressive 22.9 L / min (when heated at 25 ℃). This is quite enough to meet the household needs of a large family of 5-6 people, including in situations of simultaneous operation of several points of analysis.

All specifications

Specifications LUNA Duo-tec 40

Main
Energy source	gas
Installation	wall
Type	dual-circuit (heating and DHW)
Heating area	300 m²
Condensing


Technical specs
Heat output	40 kW
Power supply	230 V
Power consumption	142 W
Coolant min. T	25 °С
Coolant max. T	80 °С
Heating circuit max. pressure	3 bar
DHW circuit max. pressure	8 bar


Consumer specs
DHW min. T	35 °С
DHW max. T	60 °С
Performance (ΔT=25°C)	22.9 L/min
Performance (ΔT ~30 °C)	16.4 L/min
"Summer" mode
Heated floor mode
Circulation pump

Boiler specs
Efficiency	105.8 %
Combustion chamber	closed (turbocharged)
Flue diameter	60/100, 80/125, 80/80 mm / 80/80 for split flue /
Inlet gas pressure	20 mbar
Max. gas consumption	4.36 m³/h
Expansion vessel capacity	10 L
Expansion vessel pressure	0.8 bar
Heat exchanger	stainless steel


Connections
Mains water intake	1/2"
DHW flow	1/2"
Gas supply	3/4"
Central heating flow	3/4"
Central heating return	3/4"


Safety
Safety systems	gas pressure drop water overheating flame loss draft control frost protection


More specs
Dimensions (HxWxD)	763x450x345 mm
Weight	41 kg
Added to E-Catalog	march 2013

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User reviews ₁

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good model, I 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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Денис8 March 2018, 18:10

выбираю котел, по этой фирме отзывов почти нет, по другим фирмам,такие дорогие котлы глючат через пол года, редко через два. какая тут Экономля? немцев есть котлы с незамерзайкой, -- актуально, по одному отзыву порвало все теплые полы что в 2 раза дороже их конденсационного котла

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