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Benefits of Radiant Heat Radiant Heat Defined Radiant Heat Applications Electric Radiant Heat vs. Hydronics Radiant Heat vs. Forced Air Low Voltage vs. High Voltage Electric vs. Hydronics at a Glance Both electric and hydronic radiant heat systems have certain advantages for specific applications. The following highlights the advantages of low-voltage radiant heat systems: A boiler room is required to run a hyronic radiant heat system. A 17"x12"x8" control unit is required to run a low-voltage radiant heat system. Gypsum or concrete slab is required for installing a hydronic system. It is estimated that it costs approx. $4.00 or more per square foot to install a hydronics in-floor heating system than it does to install Heatizon's in-floor heating system. The Zmesh heating element is installed directly under the floor surface without any floor buildup. The 12"-wide ZMesh is rolled out over the area to be heated, then nailed and/or stapled to the wood subfloor. Electric radiant heat warms your floors evenly because it uses 100% of the system's enegery. A hydronic system, however, heats the floor less the further away the hot water gets from the boiler (see illustration below). Hydronic systems use only 65-85% of the system's energy. At higher elevations, electric radiant heat still is 100% efficient, where as hydronic systems are even less effective than at sea level. Detailed Comparison Heating System Comparison Efficiency Low-Voltage Radiant Heat System Hydronic (Hot Water) Floor Radiant Hydronic (Hot Water) Baseboard Efficiency at 100% of capacity 100% 65-85% 65-85% Efficiency at 50% of capacity 100% 35-65% 35-65% Efficient - relative thermal 100% 100% 50-75% 100% of energy is delivered to heat element YES NO NO Proper sized capacity of "Off Peak" conditions YES NO NO Maintenance Low-Voltage Radiant Heat System Hydronic (Hot Water) Floor Radiant Hydronic (Hot Water) Baseboard Annual Maintenance Required - filters to clean or change NO YES YES Easy to repair YES NO NO Controls - simple and reliable YES NO NO Cost Savings Low-Voltage Radiant Heat System Hydronic (Hot Water) Floor Radiant Hydronic (Hot Water) Baseboard Expandable - easily and economically YES NO NO Floor covering - Compatible with all YES NO YES Floor space required for installation (mechanical room) NO YES YES Decorating limitations for furnishings, wall coverings, etc. (no registers, grills, radiators) NO NO YES Installation and Operation - simple YES NO NO Structural building cost increases required to accommodate NO YES NO Venting required to outside and combustion air required NO YES YES Concrete required - regular or lightweight NO YES NO Remodeling Low-Voltage Radiant Heat System Hydronic (Hot Water) Floor Radiant Hydronic (Hot Water) Baseboard Retrofitability - in existing concrete or ashpalt YES NO NO Retrofit into joist space effectively YES NO NO Simple modification for remodeling YES NO NO Easy and effective for large or small areas YES NO NO Minimal floor section height increase (1/8" or less) YES NO YES Health & Safety Low-Voltage Radiant Heat System Hydronic (Hot Water) Floor Radiant Hydronic (Hot Water) Baseboard Health & Medical (doesn't distribute dust, pollen, allergens through the air) YES YES YES Environmentally-friendly (greenhouse, glycol, etc.) YES NO NO Safety (no high-voltage, no hot surfaces, no combustible gases) YES NO NO

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