Boiler structure

Individual pellet feed X
The DuoWIN can be equipped with manual or fully automatic pellet feed.
Intelligent fuel switching X
The automatic fuel switchover of the hybrid boiler detects whether the wood gasifier is in burn-out mode. If there is too little energy in the boiler or the heat storage tank, the system switches to pellet operation either automatically or after an individually adjustable time.
More power or more efficiency X
The DuoWIN is available in either a comfort or an energy-optimized version: The PowerBoost function can be used to provide high output at short notice. Thanks to EnergySaver, the DuoWIN works up to 25 percent more efficiently in pellet mode than conventional combi boilers.
Two separate heat exchangers X
The two independent heat exchanger systems guarantee the highest possible level of safety. The wood combustion chamber and the stainless steel pellet burner are not wearing parts and are included in the warranty.
Automatic ignition X
The DuoWIN's ignition elements ignite silently, require little maintenance and are included in the guarantee
Convincing down to the last detail
- The automatic fuel switchover of the hybrid boiler detects whether the wood gasifier is in burn-out mode. If there is too little energy in the boiler or the heat storage tank, the system switches to pellet operation either automatically or after an individually adjustable time.
- The DuoWIN can be equipped with manual or fully automatic pellet feed.
- The two independent heat exchanger systems guarantee maximum safety. Both the wood combustion chamber and the stainless steel pellet burner are non-wearing parts and are included in the guarantee.
- With the PowerBoost function, a high output can be provided at short notice. Thanks to EnergySaver, the DuoWIN works up to 25 percent more efficiently in pellet mode than conventional combi boilers.
- The DuoWIN's ignition elements ignite silently, require little maintenance and are included in the guarantee
The advantages at a glance
+ Optimal use of wood and pellets reduces consumption and lowers heating costs in the long term.
+ Switch flexibly between logs and pellets - for maximum independence.
+ Thanks to PowerBoost, both boilers can be used at the same time, thus increasing the output.
DuoWIN2 EDEL
Tailor-made solutions
Type | EDEL |
Pellet feeding | By hand (daily container 107 kg) suction system also possible |
Heating surface cleaning | |
Wood | Semi-automatic |
Pellets | Fully automatic |
Ash removal | |
Wood | Hook-in ash pan (by hand) |
Pellets | Ash pan (fully automatic) |
Fuel switchover as standard | Fully automatic self-recognition |
Technical data
The DuoWIN2 EDEL is available in a total of four different versions.
Type | DWE18/15 | DWE25/21 | DWE25/26 | DWE30/26 | |||
Nominal heat output range | |||||||
Wood | kW | 18 | 25 | 25 | 30 | ||
Pellets | kW | 4,3 - 15 | 6,3 - 21 | 7,6 - 26 | 7,6 - 26 | ||
Boiler efficiency at nominal load | |||||||
Wood | % | 90,9 | 90,7** | 90,7** | 90,5 | ||
Pellets | % | 93,3 | 93,6 | 93,6 | 93,3 | ||
Filling volume | |||||||
Wood | l | 145 | |||||
Pellets | l | 164 (108*) | |||||
Minimum insertion dimensions W x D x H | |||||||
Wood | mm | 588 x 967 x 1340 | |||||
Pellets | mm | 714 x 720 (650****) x 1146 | |||||
Minimum insertion weight | |||||||
Wood | kg | 430 | |||||
Pellets | kg | 177 (156****) | |||||
Boiler dimensions W x D x H | mm | 1.393 x 1.100 x 1.492 (1.705*) | |||||
Total weight (incl. fairing and add-on parts) | |||||||
Wood | kg | 499 | |||||
Pellets | kg | 261-283*** | |||||
Exhaust pipe connection diameter | mm | 130 | |||||
Power consumption at nominal load | |||||||
Wood | W | 43 | 49** | 49** | 53 | ||
Pellets | W | 33 | 41** | 48 | 48 | ||
Energy efficiency class | A+ |
* Applies to DuoWIN with fully automatic pellet feed
** Interpolated from two values
*** The actual weight depends on the type and can be reduced slightly during installation by removing flexible parts.
****Applies to DWE 18/15