http://www.metaefficient.com/heating/effective-masonry-heaters.html The Guide To Efficient Living Wed, 01 Feb 2012 19:10:20 +0000 hourly 1 http://www.metaefficient.com/heating/effective-masonry-heaters.html/comment-page-1#comment-898 Tony Thu, 16 Dec 2004 03:27:51 +0000 http://s31669.gridserver.com/?p=480#comment-898 You don't mention geothermal heating in your list. I would think that after the initial investment, it would rank right up there with active solar heating. You don’t mention geothermal heating in your list. I would think that after the initial investment, it would rank right up there with active solar heating.

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