Quote:
Originally Posted by mrd
Soil type & moisture will make or break it..
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Good analysis...
Much of the hydronic lore I have encountered, suggests that foundation insulation is a must and that insulating with foam at least under the outer portion of the heated floor is a good idea. But I think that the cost of energy really tilts the playing field even beyond that.
When figuring payback, I think that it's wise to remember that energy prices are not a static thing, and that they are moving up, not down.
I think it's not unrealistic to estimate that they will be moving up much faster than one might be comfortable with, especially since virtually every major oil field in the world is now in decline.
Also the cost per BTU from Canadian oil sands is very much higher than from conventional oil wells.
I say insulate very well, much better than you think you need, and do it now.
-AC_Hacker