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Hi all, I'm about to build steps in my garage. The first floor is a floating slab, poured last summer, with insulation, vapor barrier and in-floor heat (not hooked up yet but that's another story). Is it ok for my stair stingers, and base step, to rest on the bare concrete or should there be...

FYI..." know this is an old discussion but the GFCI breaker IS NOT required and a letter confirming this can be obtained from the manufacturer of the minisplit (in this case Daikin). The breaker will absolutely trip upon startup. It isn't due to current draw but how the inverters work. A GFCI...

Good to know PoorOwner and jhrodd sberry thx! I'll ask the inspector next week. -W

sberry...can you explain what you mean? The installer said it does require a GFCI. Don't most electrical items that are in the elements need GFCI's? Thanks!

Hey all, I had a 12,000 Fuji Mini-split installed and to save $500 I decided to run the power. I'm fairly experienced with the basics of electrical systems, theories and practices but can't wrap my head around this problem. It's 240v, 20 amp. I ran about 10 feet of 12/3 Romax and didn't...

Thanks BrownEye and MattT!

How much savings is (Mr.Cool) 17.5 SEER compared to (Mitsubishi) 23.1 SEER? The cost difference is $500.00 plus someone to do the final hook-up (Anybody in MN Twin Cities know of a guy?). It might be worth the price if the savings are great and the longevity of the Mitsubishi is greater. You...

Scotty, Is your gallery page down currently? I get this message..."Warning: simplexml_load_file(http://picasaweb.google.com/data/feed/base/user/106311345146725351253/albumid/6105574721537464465?alt=rss) [function.simplexml-load-file]: failed to open stream: HTTP request failed! HTTP/1.0 400 Bad...

Spuds, If it was 1" spray then 3" foam board, wouldn't the vapor barrier then be on the outside layer of the foam? -W

Thanks DC, What about the idea of using a small amount of spray foam (like 1") and then sheet foam over that OR the opposite...sheet foam first then a small amount of spray foam over that? I have 5.5" to use and it seems a waste not to fill it all. Maybe it's 1" spray, 3" sheet and 1.5"...

Which is the better product and why?

Thanks Scotty, if I want a product with color choices other than grey, what do you suggest? Cold weather garage with salt...and how would that product compare? Wilson

Scotty - Looks like a great product. You say that it has good COLD WEATHER COATING but if the floor is cold it can't be etched and washed without the water freezing. What team is ideal for curing, and how many coats do you suggest for newer concrete? Thx!

So how much does housewrap stop the air movement from outside to inside? Is spraying foam, just to seal all the small cracks, a waste of $ if housewrap has been used?

DC73 thanks for your thoughts, that is what I had been thinking as far as the foam sales pitch. I have been leaning towards the hybrid idea as well (not sure what my local code says or if I care)but am still not sure about minimum thickness of foam needed in order for that to work and not have...

dcg9381 Thanks!

Thx dcg9381, good advice. I can't get my head around the fact that these places are suggesting anywhere from 2-4" of foam on the walls and 3-4.5" in the ceiling..in MN. That means r17-r21 in a state where r-21 in walls and r-49 is what code mandates for a living space (with attic). There is...

dcg9381 what about this new line that if you used Closed cell, a lot less is needed? Yes, I know the R-value differences but many Closed Cell people are saying that anything over 4" is overkill and that the laws of diminishing returns quickly comes into play. Is that just a line or do you figure...

8mpg why Open cell and not Closed cell? I don't understand why some people are sold on one other the other? I understand the difference but no one ever explains their choice. Thx!

I'm finally getting my garage walls and trusses soon. If I'm pretty sure that I will use a mini-split in the future should I leave an access hole for it before thesiding goes on? Thx! -W