The photo in Figure 1 shows a non-pressurized outdoor wood-fired furnace connected to a floor heating subsystem via two PEX tubes. It includes a cast iron circulator, a thermostatic 3-way valve for mixing, a bypass linking supply and return tubes, and an "expansion zone" for another floor heating circuit. This setup is in a multi-million dollar home. Are there any potential issues with the installation?
One of the most surprising findings in the report was that heating elements designed for spot heating applications were the primary drivers of floor heating sales growth in the third quarter of this year.
Although hydronic radiant floor heating can be incorporated into many types of buildings, it's often a "perfect match" for garage-type buildings with bare concrete slab-on-grade floors.
