The heaters are used in poultry house,greenhouse and workshop and so on.They can burn coal,oil,gas.... 1) Consumption: 50,000 / 100,000 / 200,000kcal 2) Heating supplying area: 300 / 600 / 1,200m2 3) Stainless steel alternative machine, contenting high chromium 4) Exact digital controlled temperature system 5) Complete incubation and insulating design, low heating loss 6) Italian imported burning ...