... house,greenhouse and workshop and so on.They can burn coal,oil,gas.... 1) Consumption: 50,000 / 100,000 / 200,000kcal ... ) Complete incubation and insulating design, low heating loss 6) Italian imported burning component 7) Stainless steel firing chamber, heating efficiency reaches ... ) Special added second time heating wind system, gaining national patent Coal burning air heater fan with CE