Better Wood Heat: DIY Rocket Mass Heaters 8-DVD Set as tiny download

This is eight mp4 files.  640x360.  We are trying to keep the file sizes small, so people can have lots of videos on their phone on similar contraptions.

This version is provided for people that are tech savvy and have limited internet stuff.  If you are not sure about what this is all about, then don't get the download version!  You want the HD streaming version HERE.

HD instant view	$15	$28	$28	$40
tiny (SD) download	$20	$45	$45	$65
physical DVDs (US shipping)	$30	$75	$75	$110
physical DVDs (non-US shipping)	$50	$95	$95	$130

wbs2-fire-science-640x360.mp4: 632 mb
wbs2-sneaky-heat-640x360.mp4: 853 mb
wbs2-boom-squish-640x360.mp4: 622 mb
wbs2-hot-rocket-640x360.mp4: 602 mb
bwh-cob-640x360.mp4:   665 mb
bwh-pebble-640x360.mp4:   634 mb
bwh-shippable-640x360.mp4:   600 mb
bwh-innovators-640x360.mp4:   682 mb