AHONA - Alternative Heating Of North America


25 TVZ

Vigas 25 TVZ


Certified to UL391 and CSA-B366.1

Output: 17,000-95,000 BTU*

BTU rating for optimum output rated at 85,000 BTU*

Fuel: wood, bio bricks or bio fuel*


  • Hot air heating

  • Can easily be combined with ventilation

  • Long service life

  • Ecological operation

  • Excellent combustion efficiency

  • Lambda Control Sensor/Control

Product Description and Documen ts

The Vigas Model 25 TVZ unit is a hot unit furnace and designed for firewood, bio bricks or bio fuel combustion at fulfillment of the emission conditions of the 3rd CSN EN 303-5 standard. Boilers are welded from boiler steel sheets. The combustion of different fuels and materials in this boiler (i.e. plastic) is inadmissible. The boiler is designed in at 17,000-95,000 BTU power output. This model is appropriate for heating of a structure where hot air ventilation system is utilized.

(*See technical data sheet for specifics for this model).

Vigas 25 TVZ

1. AK Controller
2. Upper Door
3. Chimney Bypass Operating Handle
4. Gasification Chamber
5. Primary Air Inlet
6. Fan Shutter
7. Fan
8. Fan Cover
9. Ceramic Combustion Nozzle
10. Secondary Air Modulation Shutter

11. Lower Door Handle
12. Refractory Fire Brick
13. Lower Door
14. Chimney Attachment Flange
15. Heat Exchanger Top Cover
16. Chimney Bypass Shutter
17. Upper Back Cover
18. Hot Air Supply Plenum
19. Upper Front Cover
20. Temperature Sensor for Plenum
21. Over-Temperature Sensor

22. Heat Exchanger Tube
23. Refractory Concrete Floor
24. Secondary Air Flow
25. Combustion Chamber
26. Direction of Exhaust Gas Flow
27. Supply Air Blower
28. Base/ Support Leg

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© 2007-2016 Grow & Bloom™. Inc. dba Alternative Heating of North America™ . All rights reserved.
1614 County Highway 16 - Burlington Flats, NY 13315
Tel/Fax: 607-643-6122