Comments on: Vuthisa – Is it better to burn wood or charcoal? http://blogs.washplus.org/iaqupdates/2010/09/vuthisa-is-it-better-to-burn-wood-or-charcoal/ from the WASHplus Project Sat, 19 Sep 2015 07:30:10 +0000 hourly 1 https://wordpress.org/?v=4.4.4