Lots of stuff, suggestion, try finding the brochures, floor plans and all that, for 2007 and prior years via the Keystone web site. Not sure, but they might tell you all the different stuff for each year. One thing they did was move where the water lines travel, now between floors, 'nother is that they moved the low point drains UP!!!
ON EDIT:::: they don't list the old standards, shoot!! thought they did. oh, well, it was a good idea!
These changes have been morfing for a couple of years, so, take a look at all the brochures and data avaiable on line.
Some of the others will come along and have more details about these improvments.
It is always a good thing to remember that Keystone makes running changes in their units, they don't wait for the year to change to make the changes, they make them NOW!! and tomorrow and yesterday!
Didn't someone say (just in the last week) that they took one of these 0 degree units to upper Michigan or somewhere and tested it for a month?? Try the ole search button!
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