Solar Direct Injection
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Radiant Floor Heat & Snow Melt Systems
Radiant Floor Heat & Snow Melt Systems include solar direct injection (closed-loop) and primary loop injection and distribution systems.
Radiant Floor or "warm in-floor" heating typically uses flat-plate solar collectors in conjunction with floor materials having thermal mass ("mass floors")-- like cement, stone, or adobe vs. a "non-mass" wood floor. These systems send warm fluid through pipes under the floor to warm the floor and evenly heat the rooms. Radiant floor heating often is 30-40% less expensive to operate than old-style forced air heating systems. Efficiency alone gives radiant floors a 5-6 year payback period, without factoring in benefits from any available financial incentives like tax credits or rebates. Properly designed and installed systems will perform very well for 30-40 years.
Primary loop and distribution systems combine multiple heating sources such as solar, gas boiler, geothermal heat pump, with multiple end uses such as heating warm floors or baseboards, heating pools and spas, pre-heating domestic hot water, and/or warm water storage tanks.
A primary loop system is both modular and highly efficient. It is fed by solar collectors, boiler or any other heat generation component. When solar heat is available (during sunny days) the system will use that heat first to "pre-heat" system fluids and then will automatically supplement ("boost heat") with the other heat sources as needed. Heat is stored in the thermal mass flooring or in storage tanks.
 
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