Defro Duo Pellet Lux

DEFRO DUO PELLET LUX is an offer for the most demanding Customers who value quality as well as design. The fuel charging system has been modified. The boilers are characterised by advanced controlling automatics, which allows for maintenance-free boiler operation for a few days.
The additional chamber created by a stationary grate cooled by water (wall thickness: 8.8 mm) allows for temporary use of other types of fuel such as wood chips and boiler start-up in emergency cases. A grate deck has also the function of water tubes and constitutes additional area for heat exchange.
The boiler exchanger has been made only from boiler steel of thickness of 6-10 mm but elements exposed to fire and compounds contained in the flue gas have been made from steel of thickness of up to 10-12 mm.
The boilers are equipped with a number of sensors controlling its work. Moreover, the charge container can be equipped with a lamp increasing the comfort of operation.

Boiler’s advantages:

basic

replacement

pellet

coal

wood logs

Boiler’s advantages:

	5-year warranty for heat exchanger tightness, 2-year warranty for other elements and efficient operation of the boiler;
	the exchanger has been made from certified boiler steel ( P256GH type) of thickness of 6-10 mm, delivered by the following steel plants: Arcelor Mittal Poland S.A, Kraków branch and U. S. Steel Košice s.r.o.;
	high thermal efficiency, up to 92%, thanks to increased heat recovery from flue gas;
	self-acting fuel ignition system connected to the automatic burner cleaning system;
	electronic boiler regulation; innovative controller with a touch screen cooperating with up to 4 pumps (central heating, hot utility water, circulatory and floor pump) and with the possibility of controlling mixing valves*;
	two combustion chambers: lower with an automatic retort burner and upper for burning wood (when charged manually);
	internal lamp for the charge container*;
	ceramic catalysts stabilising the combustion process;

Technical data
Specification/boiler type	Unit	15	25	35	50	75
Nominal output	kW	8-24	10-31	13-42	16-53	23-75
Heating surface	m²	2,1	2,8	3,8	4,8	6,7
Heated room surface	m²	up to 200	up to 250	up to 320	up to 480	up to 700
Single fuel load	kg	~240	~370	~390	~530	~530
Optimum heating efficiency	%	90,1-92,5	90,1-92,5	90,1-92,5	90,1-92,5	90,1-92,5
Max. work pressure allowed	bar	1,5	1,5	1,5	1,5	1,5
Required chimney flue	Pa	20	25	30	35	38
Water temp. on supply max	°C	85	85	85	85	85
Boiler weight	kg	524	605	665	861	1010
Boiler water capacity	l	76	99	110	122	197
Chimney cross section	cm x cm ø mm	14x14 160	16x16 180	19x19 210	21x21 230	25x25 280
Minimum chimney height	m	6	6	7	9	10
Power supply	V/Hz	230/50	230/50	230/50	230/50	230/50
Power consumption - boiler start-up	W	287(272)	287(272)	316(301)	316(301)	316(301)
Power consumption - boiler operation	W	97(82)	97(82)	126(111)	126(111)	126(111)
Width	mm	1313	1498	1548	1548	1648
Depth	mm	925	1031	1065	1283	1295
Height*	mm	1672	1672	1739	1739	1878
Supply and return diameter Dn	mm	G 1_1/2"	G 1_1/2"	G 1_1/2"	G 1_1/2"	G 2"
Flue pipe dimension	mm	ø159	ø178	ø194	ø194	ø245
Height to the lower end of flue pipe*	mm	1257	1257	1305	1305	1402
* Boiler’s height can be additionally regulated by the use of the feet attached to it. The feet can regulate height by 38-50mm.




	A*	B*	C	D*	E*	F	G	H	I	J	K	L
15	115	1257	Ø159	1688	1526	498	1313	533	210	202	945	715
25	115	1257	Ø179	1688	1526	548	1498	641	210	202	1053	850
35	115	1305	Ø194	1733	1571	598	1548	641	240	202	1083	850
50	115	1305	Ø194	1733	1571	598	1578	865	240	202	1307	850
75	153	1402	Ø245	1879	1575	698	1648	865	240	202	1307	850

* In case of disclaimers of regulatory dimension increases from min. 38 to max. 50 mm.

The table below shows the dimensions of the opening for filling and combustion chamber.

	A (Width)	B (Depth)	C (Height)	D (Width x Height)
15	310	370	310	310x190
25	360	480	310	360x190
35	405	480	360	405x190
50	405	700	360	405x190
75	500	700	410	500x235

DEFRO Company reserves the right to change without notice the technical parameters, equipment and specifications of our products. Contained on this page to ensure the information is not in the meaning. 4. 3 and 4 of the Act of 27 July 2002 on the specific terms of consumer sales and amending the Civil Code (the "Act") and do not describe the purpose of a product. 4. 2 of the Act. This site does not constitute an offer within the meaning of. 1966 Civil Code.