{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Burn Chambers for Rocket Mass Heaters: The pluses and minuses of various types of burn chambers","author_name":"Ray Dudley, Randi Dudley","thumbnail_url":"https://www.ebooknetworking.net/books/149/965/big1499651252.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1499651252.html\">Burn Chambers for Rocket Mass Heaters: The pluses and minuses of various types of burn chambers</a>","width":400,"height":300}