I have the unenviable task of replacing a floor (or three) in my home in the coming weeks/months. We are considering a mix of tile and solid hardwood.
It appears that it is possible to retrofit in-floor heating (electric). And the price isn't so fantastic that it's immediately off the table either. However, I think I will be constrained by just how many open slots for breakers are left in my panel.
One option available at Home Depot's web page says that it covers an area of 3' x 10ft'. I would need six of these alone just for my living room, with other rooms probably tripling or quadrupling that figure.
The documentation for that product suggests that I need at least 10A of circuit per 100sqft of flooring. Will I really need a 30A circuit just for the living room alone (roughly 250 sq ft)? When McMansions do this stuff, are they setting aside 300A of power just for their 3000 sq ft suburban castle? (Hell, isn't 240A service normal, do they have an entire second panel set aside for this stuff?) Are they only using the hydronic systems? Can someone walk me through the rough estimates to see if this is viable or not? What are the rules of thumb? I expect to confirm that this isn't a feasible wish, so don't feel reluctant to disappoint.