More than 50 billion chickens are raised worldwide every year - everyone's favourite protein food. Reared in chicken sheds/houses heated to a healthy broiler growth temperature from around 32˚C, maintained 24 hrs of everyday, for 5 to 9 weeks. Liquid Petroleum Gas (LPG), the most common & costly heating source on chicken farms is causing bird welfare problems. Direct LPG heaters are an inefficient & expensive source of heat, detrimental to poultry house environment - leading