Can someone point us to RMH designs that are simple enough to heat a PNW, USA 1000sqft home that don't require extensive skills or tools?
We have very limited construction skills but we were able to install a wood stove/flue/chimney in our 1012 square ft rambler 3 years ago. We need to replace or supplement it with a RMH as we primarily need to reduce the amount of wood we collect and burn. We've read Ianto's book and threads on permies, permsteading, donkey32, reddit, aquaponisnation, others, & tons of youtubes to try to figure this out ourselves.
Can someone help identify the RHM we can/should build for our situation & our skills. We need it to be as inexpensive as possible. Some looked promising like the sheet metal one at http://velacreations.com/energy/heat/40 ... eater.html but we need one that wouldn't require expensive tool purchases or advanced skills like welding.
We keep checking our local Habitat for Humanity RE-store to find parts (ie 55 gal barrell, firebricks, ducting) but they haven't carried what we need & hiked their prices so it looks like we'll have to buy materials from the the big box stores.
Our home has a crawlspace so if we built the cob couch we'd have to install a beam in that area to support the 2-5 tons . If we were to build something simpler/similar to the velacreations model or something that required use of our existing flue/chimney, we'd have to remove the wood stove & might need to add another beam in that area depending on the total weight of the rmh design vs. the amount of support 1 beam would give.
Thank for your guidance & recommendations.
(crossposted at permsteading)