Cost of shipping a dimensional object wide makes this something to make on site. A roll bender, 2 steel pipe and 6 pvc pipe are the main materials. The larger the diameter the higher the yield in the area.
A Frame House Plan 24308 Total Living Area: 823 sq. The A-frame's steep roof is designed to shrug off the deep snowfall of a mountain environment, yet, this cabin would be equally at home in any vacation setting.
Running an fan through the middle to blow air up the pipes would help it radiate out. Bend the pipes around a 55 gallon barrel and make a rocket style insulation around it with sand and plaster. Place some sort of central blower to control speed of air