9 Solar Hot Water Heaters

Viessmann. The Vitosol 200-T vacuum-tube system for residential or commercial installations offers versatility for horizontal or vertical mounting options in roof, wall, or freestanding installations. Direct-flow solar collectors have sol-titanium-coated copper absorbers, thick borosilicate tubes, and permanently vacuum-sealed glass-metal joints. Plug-in connectors allow for tube rotation up to 25 degrees to optimize collector placement on most sites. Up to 150 tubes can be connected in series. It includes the SRCC label. 800.288.0667. http://www.viessmann-us.com/.

Kingspan. SRCC-certified “Solar in a Box” packages of Thermomax solar thermal systems are available direct to contractors or through area distributors. Each package is designed for a typical household size and contains all parts, materials, and equipment needed for installation and operation in all U.S. geographical locations. The kits offer a choice of high-performance vacuum-tube or flat-panel solar collectors. 410.799.6600. http://www.kingspansolar.com/.

Stiebel Eltron. A trio of one-, two-, or three-collector SolKit solar water heating packages are available to meet the needs of most households. The SRCC-labeled ceramic/metal-coated collectors feature anodized aluminum enclosures and low-iron tempered glazing for optimum performance and long service life. The 80- and 108-gallon tanks have dual heat exchangers and are wrapped in 3 inches of insulation for very low standby heat losses. Each package comes complete with collector, pump, and controller, but piping is not included. 800.582.8423. http://www.stiebel-eltron-usa.com/.

EarthNet Energy. Because not all rooftops are suitable for solar collector placement, the company offers a Ground Mount Pedestal mounting system adaptable to most types of flat-panel and evacuated-tube solar collectors. The heavy duty, powder-coated-steel pedestals are available in 5-foot-tall bolt-mount or 7-foot-tall direct-burial models. The company also manufactures complete evacuated-tube and flat-panel solar collector systems. 717.414.7652. http://www.earthnetenergy.net/.

EnerWorks. Designed for climates where temperatures remain above 27 degrees F, the Focus Pre-Heat Appliance pipes potable water through roof-, rack-, or wall-mounted collectors to the home’s storage tank. The system includes an Energy Station that automatically calculates the amount of heating oil, gas, or electricity saved as well as cost savings, and a wireless portable SolarView Monitor allows homeowners to track system performance. This system also can be configured to provide secondary applications such as pool heating and space heating. The product carries SRCC and IAPMO certifications. 877.268.6502. http://www.enerworks.com/.

Caleffi. The SRCC-certified Solarie Solar Heat Pump is an all-in-one collector and storage tank system that eliminates the need for a separate backup water heater. Using demineralized water instead of refrigerant liquid as a heat exchanger, it pumps the water to its rooftop collectors only when sunlight is available, then drains the water to the holding tank during sunless periods. This prevents the system from freezing or overheating, even during power failures. When needed, water is heated automatically by a backup electric element or gas burner built into the tank. 414.238.2360. http://www.caleffi.us/.

Rheem. SRCC-labeled Solaraide passive solar water heating systems operate without pumps or controllers. A closed-loop, indirect heat exchange design wraps completely around the unit’s roof-mounted thermo-siphon exchange tank for optimum efficiency. Single or double flat-plate collectors in 47- or 80-gallon capacity include multiflow risers that transfer heat rapidly and provide heated potable water directly to the home’s existing or backup water heater. The company also makes SolPak active solar thermal systems and storage tanks. 800.621.5622. http://www.rheem.com/.

Velux. Known in the U.S. for skylights and roof windows, Velux has been manufacturing flat-plate solar systems worldwide for more than 15 years. The SRCC-certified Integrated Collector Systems now available here can be installed directly onto the roof deck for a low-profile appearance using a flashing system that covers all mounting hardware. One-, two-, or three-collector systems with 60-, 80-, or 120-gallon insulated storage tanks are available. 800.283.2831. www.veluxusa.com/solar.

Bradford White. EcoStor SC hot water storage tanks are optimized for use with most solar water heating collector systems. For maximum efficiency, the units’ heating elements activate only when solar energy does not satisfy demand. The tanks feature an internal single-wall heat exchanger, dual 5,500-watt or single 4,500-watt backup heating elements, glass-lined carbon steel heat exchanger cells and linings, foam insulation, and dual aluminum anodes for extra-long service life. Three tank models with 60- to 115-gallon capacities are available. 800.523.2931. http://www.bradfordwhite.com/.

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