• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources the cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Nicole Alderman
  • Anne Miller
  • Pearl Sutton
  • r ranson
  • Mike Haasl
  • James Freyr
stewards:
  • paul wheaton
  • Joylynn Hardesty
  • Burra Maluca
garden masters:
  • Steve Thorn
  • Greg Martin
gardeners:
  • Kate Downham
  • Jay Angler
  • thomas rubino

Can I use sand or gravel as mass for a mass heater under an RV?

 
Posts: 2
Location: Vancouver bc
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I have just purchased a 35 ft rv and a small lot. I want to have an exterior kitchen with a rocket stove in the future. My dream is to have the stove vent to a mass heater under the length of the trailer. I will be skirting the trailer prior to the stove and would like to have the mass heater existing before I skirt it in. I envision running a single pipe down the length of the trailer. (I believe an elbow and running it back is to long a run at 70'ish).

My question is what can I use for mass the cover the ducting? I am hoping I can use sand or gravel? So I can shovel it under and not have to disrupt the trailer. That way I can remove it if the trailer has to go and I can pick away at it over time. Will that be appropriate mass? Any suggestions? Will I be able to heat it this way in your opinion?

20161111_131508.jpeg
[Thumbnail for 20161111_131508.jpeg]
Rv on the lot
 
steward
Posts: 1390
Location: Northwest Montana from Zone 3a to 4b (multiple properties)
212
hugelkultur forest garden hunting books chicken wofati
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
First off, welcome to permies!

You might want to try doing a search for Tristan Vitali on here. He did a bunch of work with RMH and a travel trailer on his place in Maine, I think it was. He did use cob, but he had a lot of varied experience with his build.
 
Rick Podd
Posts: 2
Location: Vancouver bc
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks a ton! I'll search him
 
gardener
Posts: 3035
Location: Upstate NY, zone 5
137
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Sand would not be a good mass material, as its millions of tiny airspaces make it somewhat insulating. Sand under the duct would be fine, as long as you insulate under the sand. Gravel and rocks around and over the duct are decent if not great mass material. You would want to seal the whole thing airtight to the bottom of the RV so the wind can't blow through and rob the heat.
 
steward
Posts: 4658
Location: Zones 2-4 Wyoming and 4-5 Colorado
463
hugelkultur forest garden fungi books bee greening the desert
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Tristan's threads  here and here.
 
Get me the mayor's office! I need to tell her about this tiny ad:
Food Forest Card Game - Game Forum
https://permies.com/t/61704/Food-Forest-Card-Game-Game
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!