Pellet boiler stove MONTEGRAPPA MW 14 – 18 – 24 MARRA M

Description

Pellet boiler stove MONTEGRAPPA MW 14 – 18 – 24 MARRA M

MW MARRA M

Majolica cladding with black top, round painted steel structure. Exterior door with curved black painted glass.

Control panel equipped with backlit graphic display with digital icons TOUCH SCREEN Intuitive software with programmable thermostat and possibility of setting different types of system Continuously rotating gear motor Electronic board with the possibility of managing external thermostats Fully ductable combustion air that allows the stove to be certified hermetic Wi-Fi module (optional) Steel shell and tube heat exchanger with turbulators that can be moved by the user Deep cylindrical burner with inclined bottom Optional domestic water kit (only on MONTEGRAPPA MW24 model) Ignition tube inserted inside the burner always guarantees perfect ignition of the product TUTOR new efficient combustion control system Integrated ventilation kit Safety thermostat Safety pressure gauge Adjustable non-slip feet for correct levelling 10 power levels for more efficient modulation Valve 3 bar Safety pressure transducer Integrated high-efficiency circulator with bidirectional PWM electronic management 8 litre capacity expansion tank Supply water temperature probe Return water temperature probe Large removable ash drawer Internal flue gas temperature and room temperature probe Practical rear water connections 35 litre boiler

MW MARRA M

body size + cover: L 65 x P 67 x H 120 cm

Technical data

USD

power

mm

mm

consumption

Mass

gas temperature

capacity

outlet pipe

MW14		MW18	MW24
Quality class (D.M. 186 – 7/11/2017)
overall heat output (at the hearth)	13.8		17.2	21.0	Kw
Certified	5.9 – 13.1		5.9 – 16.2	5.9 – 19.7	Kw
Certified power rendered to the environment	1.2 – 1.8		1.2 – 2.2	1.2 – 2.7	Kw
Certified power rendered to water	4.7 -11.3		4.7 – 14.0	4.7 – 17.0	Kw
CO measured (at 13% oxygen)	0.003		0.004	0.004	%
Yield (η)	95.4		93.9	93.9	%
Primary Particulate Matter (PP) at 13% oxygen	14		15	15	mg/Nm3
Fuel	1.27 – 2.83		1.27 – 3.53	1.27 – 4.30	kg/h
flow rate of fumes	6.4 – 8.4		6.4 – 9.9	6.4 – 11.5	g/s
Flue	65 – 91		65 – 108	65 – 124	°C
draught (vacuum at the chimney)	5		5	5	Pa
Tank	28		28	28	Kg
autonomy	22 – 9.5		22 – 7.5	22 – 6.5	h
Smoke	Ø 80		Ø 80	Ø 80	Mm
air inlet for combustion	Ø 60		Ø 60	Ø 60	Mm
Heatable surface*	150		186	226	sqm
net weight	149		149	152	Kg
Weight with packaging	160		160	163	Kg
* with the conditions shown in the General Catalogue