Radiant Floor Heat

[TRUBRIT]

I also have researched this regarding a Timber frame home. In your case the Warm boards will be more efficient as they will be on top of the joists and will direct the heat upwards. Your finished wood floor will go on top of this. A concrete floor on top of the joists would not be feasible due to the weight. Hanging the tubes under the joists is used a lot when people refurbish old houses and they already have a finished floor on top of the joists which they do not want to change. As stated, you would have to add insulation to direct the heat upwards through the finished floor if you choose to hang the tubes under the joists.