laminate flooring over heated floor

I have three questions regarding laminate flooring.

1. I would like to install laminate flooring in the basement which is concrete, partly heated with in-floor hot water heat (coils under the floor). Part of one room (one-half)and a hall-way do not have the coils underneath, Will this cause a problem with expansion differences?

2. Is there a maximum room size for optimum installation? I have two rooms joined by a doorway, both long and narrow, each one approx. 14 feet wide . One is 24 feet long, the other room ( the one only half heated) is about 30 feet long.

3. Is it better to install parallel to the length even though the longer wall is the window wall?

Thanks.

 

Hot water radiant heat is acceptable under most laminate floors. The under floor atmosphere should be consistant though.

Floor size is not limited but MUST contain expansion joints or transition moldings at some point. See the installation instructions and warrantee of the specific brand of flooring material for specifics.

For a basement installation there are probably no or few windows and no primary light source in walls therefore run the planks any "way" that feels comfortable.