Duo-Tec Compact E

Condensing boilers
Duo-Tec Compact E

Condensing boilers

Heating only and combi condensing boilers with a modern and ultra compact design for new buildings and replacement

Residential

Wall Hung - compact

Duo-Tec Compact E has been designed for small to medium size apartaments and for all situations when saving space is important. The compact dimensions allow the boiler to be located in any housing, including a kitchen cupboard.

The 1:7 modulation of Duo-Tec Compact E means efficiency and savings thanks to the reduction of boiler on/off cycles.

To save space in the house, Duo-Tec Compact E can be installed also outdoors (with upper cover available as optional).

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Characteristics

Models: 20, 24, 28, 1.24
Compact dimensions (700x400x299 mm)
Upper cover available for outdoor installation
Modulation up to 1:7 reduces on-off cycles for improved efficiency and savings. Silent and durable, delivering stable comfort levels
Automatic combustion control maintains constantly the highest level of efficiency
Digital control panel with back-lit LCD display
Remote control Baxi Mago as optional
Integration with solar system option

Features

Digital Ready

It can be connected to BaxiMAGO, the WI-FI smart modulating thermostat, and Baxi service App. You can have your boiler always under control

Hybrid Ready

It facilitates the integration of other heating sources, such as heat pumps and solar thermal, simplifying the climate management of your home

Gas Adaptive Control

It automatically detects the kind of gas and continuously adjusts the gas-to-air ratio for the highest quality combustion and savings

1:7 modulation

Modulation up to 1:7 reduces on-off cycles for improved efficiency and savings

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Technical Specification

MODELS		1.24	20	24	28
ErP data
Rated heat output	kW	24	19	20	24
Useful heat output at rated heat output and high temperature regime(2) P4	kW	24	19,4	20	24
Useful heat output at 30% of rated heat output and low temperature setting(1) P1	kW	8	6,5	6,7	8
Space heating – Seasonal energy efficiency ƞs	%	93	93	93	93
Useful efficiency at rated heat output and high temperature setting(2) ƞ4	%	87,9	88,0	88,0	87,9
Useful efficiency at 30% of rated heat output and low temperature setting(1) ƞ1	%	98	98	98	98
Sound power level, indoors LWA	dB	52	49	49	48
Declared load profile		-	XL	XL	XL
Heat input/output
Rated heat input (Qn) for domestic hot water	kW	-	19,9	24,7	28,9
Rated heat input (Qn) for heating	kW	24,7	19,9	20,6	24,7
Rated heat output (Pn) for domestic hot water	kW	-	19,4	24	28
Rated heat output (Pn) 80/60 °C for heating	kW	24	19,4	20	24
Rated heat output (Pn) 50/30 °C for heating	kW	26,1	21,1	21,8	26,1
Heating circuit
Temperature range for heating circuit	°C	25/80	25/80	25/80	25/80
Water capacity of expansion vessel	l	7	7	7	7
Domestic water circuit
Temperature range for domestic water circuit	°C	35/60	35/60	35/60	35/60
Domestic water production with ΔT = 25 °C	l/min	-	11,4	13,8	16,1
Domestic water production with ΔT = 35 °C	l/min	-	8,1	9,8	11,5
Combustion
Diameter of separate discharge pipes	mm	80/80	80/80	80/80	80/80
Diameter of coaxial discharge pipes	mm	60/100	60/100	60/100	60/100
Nitrogen oxide emissions NOx	mg/kWh	16	15	15	17
Flue gas mass flow rate (max)	kg/sec	0,012	0,009	0,012	0,014
Flue gas mass flow rate (min)	kg/sec	0,002	0,002	0,002	0,002
Electrical characteristics
Power supply voltage	V	230	230	230	230
Power supply frequency	Hz	50	50	50	50
Rated electric power	W	85	73	85	99
Dimensions
Humidity protection rating (EN 60529)	IP	X5D	X5D	X5D	X5D
Net weight	kg	30	34	34	34
Dimensions (height/width/depth)	mm	700/400/299	700/400/299	700/400/299	700/400/299

(1) Low temperature: return temperature (at boiler inlet) for condensing boilers 30°C, for low temperature boilers 37°C and for other heaters 50°C.
(2) High temperature setting means 60 °C return temperature at boiler inlet and 80 °C flow temperature at boiler outlet.