This is my first time on this site, and I am building a new house 2000 sq.ft. bunglow.
I am planning on installing radiant heating in the complete house, the basement will have a concrete floor, which does not present a problem, but on the first floor I am planning on installing the piping between the wooden joists that will have 23/32" OSB subfloor on them, and which will have 1000 sq.ft of tile, and 1000 sq.ft. of hardwood. The boilers I have researched are Viessman's Vitodens, and Weil-McLain, but have not decided which one to go with. The A/C I am looking at high velocity by the Unico system or the Space Pak. The Heat Recovery Ventilator I have not done much research on any models, but I would like your input.
The following are the questions I have;
Does having the piping installed below the subfloor have a huge effect on it's capacity to heat the space above?
Have there been many problems using a high velocity A/C systems, and which one of the above is preferred?
I plan on spraying the attice with Icynene insulation, have you heard anything about it?
Any thoughts on a HRV system?
Thank you in advance for your thoughts.