Hydronic heating systems rely on closed-loop fluid thermodynamics to deliver exceptionally comfortable, energy-efficient radiant warmth throughout a structure. Water absorbs heat generated by a high-efficiency wall-hung condensing boiler and circulates via a precision variable-speed pump through supply manifolds into cross-linked polyethylene (PEX-a) tubing embedded within a thermal mass concrete slab. As thermal energy radiates upward into the living space, the fluid cools before returning through a return manifold back to the heat exchanger to repeat the cycle.
Serves as the primary heat source. Converts fuel to thermal energy with up to 98% efficiency by extracting sensible and latent heat from condensing combustion gases into the recirculating fluid.
Supply 120°F · Max 120k BTU/h · AFUE 95%+Drives fluid flow through the closed loop. Electronically commutated motors (ECM) dynamically adjust pressure and flow rates to match real-time thermal load requirements across active zones.
Flow 4.5 GPM · Head 12 ft · Power 35WDivides primary supply fluid into parallel floor tubing circuits and collects returning water. Includes individual flow sight-meters and balancing valves to maintain hydraulic equilibrium.
3 Zones · Flow 0.75 GPM/loop · Supply 120°FOxygen-barrier PEX tubing laid in serpentine geometry inside the concrete slab. Conducts heat directly into the floor mass, creating a comfortable, uniform thermal radiant ceiling.
Loop Length 250 ft · Spacing 8" OC · ΔT 20°FAbsorbs water expansion caused by thermal heating within the closed circuit. A butyl rubber diaphragm separates hydronic fluid from an air cushion to stabilize system pressure.
Pre-charge 12 PSI · Vol 4.5 Gal · Max 150°F