posted 7 years ago
Hi John; Welcome to permies.
I bought my ceramic fiber board from ebay here is the item # (222715872389) 1"thick x 19.7" wide and 39.4" long cost was $95.60 free shipping. Cut properly this is enough to do an 8" J tube using split bricks for the feed tube. I haven't ordered it yet as I may share a roll with another permie person but ebay has ceramic fiber blanket (FOR making a 5 minute riser) here is the item # (251999917103) #8 2300 F 1" thick x 24" wide and 25 feet long for $
93.00 ! 25' is way more than I need but if you buy 12' it costs over $80.00! Buy extra !
Good Luck with your material search and your future RMH build!
For all your Montana Masonry Heater parts (also known as) Rocket Mass heater parts.
Visit me at
dragontechrmh.com Once you go brick you will never go back!