Application area

ETA SH-P 20 to 60 kW with TWIN 20 to 50 kW

Just the way
I want it

Heating with logs is unbeatably affordable. It does not harm the climate, it strengthens the domestic economy and it is crisis-proof as wood is plentyfull in Europe. Heating with pellets is conveniently fully automatic. With the ETA Twin you can switch between both systems. The changeover from one combustion chamber to another is fully automatic.

A modern log boiler is highly effective. Normally, you only have to add fuel once a day, on very cold days maybe twice. But a log boiler can never run fully automatically.

Affordable and convenient
ETA has the ideal solution for those who want to use extremely affordable wood fuel and still want to enjoy the full benefits of fully automated comfort. The ETA TWIN consists of two fully-fledged boilers that perfectly complement each other. The ETA SH log boiler can be ordered with a flange to which a fully automated pellet boiler can be easily connected – years later without converting the heating system or the chimney connection.
Intelligent system
Both boilers of the ETA TWIN work together perfectly. It lets you know if the fuel runs out in the log boiler. If no fuel is added over a freely selectable time period, the pellet boiler automatically starts working – until you add fuel again to the log boiler. So your home stays warm even if you are not there for some time.

Two combustion chambers, one device
Automatically switching from one system to another is so easy because the TWIN consists of a fully-fledged wood gasifier and a fully-fledged pellet burner. Both devices are perfectly adapted to their respective combustion materials: a patented hotzone combustion chamber ensures a particularly thorough burn-out in the log boiler. And with the aid of a lambda probe the boiler automatically adapts the supply air to the current wood quality. This achieves the best possible heating output from any wood. The lambda probe detects the suitability of the combustion material in the pellet burner too. In both devices, efficient systems ensure problem-free cleaning and de-ashing. That's comfort and money saved!
entspricht
EU-Normen
BLT Wieselburg
Österreich
TÜV
Süddeutschland Qualitätssiegel
Holzenergie
Schweiz Österreichisches
Umweltzeichen Blauer Engel
A look inside the boiler
The way to heat

Two combustion chambers, one heat exchanger, one boiler: the ETA TWIN links a top-class pellet burner with a premier split log boiler. In order for both parts to work highly efficiently, all components must work together perfectly.
The powerful aspirator
Pellet bin
Rotary valve as burn-back protection device
Pellet combustion chamber
Revolving grate with cleaning comb
Connection flange in hotzone combustion chamber
Draught fan
De-ashing, cleaning and maintenance from front side
Insulating door with integrated touchscreen
Large fuel chamber door
Carbonisation gas extraction
Large fuel chamber
Temperature-resistant iron grates
Patented hotzone combustion chamber

Technical data

TWIN Pellet Burner		20	26	40	50
Rated capacity TWIN pellet burner	kW	6 - 20	7,5 - 26	12 - 40	14,3 - 49,9
Energy efficiency class**
Efficiency of pellet burner at partial / full load*	%	87,8 / 92,0	90,1 / 93,0	90,4 / 91,7	90,6 / 90,7
Log boiler fuel chamber	mm	560 mm deep for 0.5 m logs, 340 x 365 mm door opening
Log boiler fuel chamber volume	Litres	150		223
Transport dimensions, W x D x H	mm	790 x 570 x 1.290		810 x 591 x 1.249
Weight with/without pellet burner	kg	728 / 580	728/583	990 / 800
Water content	Litres	110		170
Water-side pressure drop at ΔT=20 °C	Pa / mWS	190 / 0,019	370 / 0,037	220 / 0,022	340 / 0,034
Pellet bin on boiler (net)	kg	60 kg (294 kWh)
Maximum distance to pellet store	m	20
Ash box volume	Litres	16		25
Flue draught required at full load	Pa	>5 above 30 Pa a draught limiter is required
Electrical power consumption of pellet burner at partial / full load*	W	46 / 61	57 / 102	65,8 / 116	67 / 116
Recommended buffer volume	Litres	> 1.100, optimal 2.000		> 2.200, optimal 3.000
Required buffer volume in Germany (1. BImSchV)	Litres	1.100	1.650	2.200	2.750
Maximum permissible operating pressure	bar	3
Temperature adjustment range	°C	70 - 85
Maximum permissible operating temperature	°C	85
Minimum return temperature	°C	60
Boiler class		5 acc. to EN303-5:2012
Suitable fuels		pellets ENplus-A1, ISO 17225-2-A1
Electrical connection		1 x 230V / 50Hz / 13A