Radiant floor and engineering wood

[FastStache]

I'm looking for some ideas on how feasible this is.

I'd like to cut down on my winter heating bill, but we are in Central Florida which isn't so bad. But we are planning on having more kids so we can't just bundle everyone up yet until they are older.

My proposed solution is radiant heating under some engineering wood.

1. How effective is a product like this, http://www.thermosoft.com/radiant-floor-heating-products/shop/thermofloor-120v/? Can it be hard for cheaper or any other solutions?
2. How hard is to install engineering wood in a location like Central Florida? I'm sure I need to worry about putting down some sort of moisture barrier, all the way up to the baseboards I'm sure.

[dragoncar]

I'm pretty sure radiant doesn't make sense under an insulator like wood.

[Greg]

It's very effective, I have a friend who has this type of electric radiant heat in his condo up in the PNW.  It works well for him, and is installed under an engineered bamboo floating floor.

For you there are a few installation cautions; moisture is one.  Not just for the flooring's sake, but because moisture could damage the heat coils.  My friend had a bathtub overflow and it went into the bedroom nextdoor, and the heat coils under the bedroom door failed.

Another caution is if you're planning on installing over concrete, the concrete will absorb the bulk of the heat.

[Jack]

Do you have AC (in central Florida, I assume you do!)? If so, I suggest just switching to a heat pump and letting that heat your house. I have a hard time believing you have enough degree-days of heating to make radiant heat worth it.

Beyond that, I'd suggest adding more insulation to your attic and putting in more south-facing windows situated such that they're shaded (by either overhangs or deciduous trees) in the summer but let sun in in the winter.