Tiny Homes, Room Additions, Storage Sheds, ADUs, Etc.

[cows]

The Love Shack; a tiny house/cabin with a tiny rocket mass heater
He claims to use a very small amount of wood to heat the house. It is a tiny house, but the amount of wood he claims to use is probably insufficient.

[wildrose]

How We Built This Greenhouse for Under $3K | Timber Frame Custom Greenhouse
Lumber is a lot less expensive in Canada. Plus they got a lot of the items for free. Normally this would probably cost about four or five times as much.