Purchasing a solar water heater is a wise choice and operates using two active methods: direct and indirect. Active systems have controls with circulation pumps, but passive pumps don't. The amount of money saved depends on how the system is operational, but either way, the sunshine is a free commodity.
Types of Solar Water Heat
The active system can work directly with the use of pipes and rooftop collectors. This unit works best in a warmer climate where the temperatures don't usually freeze. A closed-loop system uses a non-freezing heat transfer liquid to heat the water indirectly. This type of system works better in climates that have freezing temperatures.
Passive water systems aren't as efficient but are less expensive. These units may last longer and have two types. An integral collector-storage system is better in the warmer areas, whereas a thermo-syphon system is more expensive.
Typically, solar water heating units are more expensive to purchase and install versus other types. The savings can add up as time passes. How much you save will depend on many factors, including how much hot water you use. It will also depend on your home's location and the performance of the system.
It is estimated your bills could drop from fifty to eighty percent because you don't have to worry about rising prices or fuel shortages. You are also saving the carbon dioxide emissions in half, which makes the unit eco-friendly. Energy Star units can prevent approximately 4,000 pounds of carbon dioxide annually.
It is possible to use the expenses involved for a solar water heater unit positioned from January 2009 until the end of the year in 2016 for both second homes and new homes. A 30% savings is available as a federal energy tax credit, providing the system receives a minimum of half of its energy from the sun. Each unit must be certified to qualify for the credit by the Solar Rating and Certification Corporation.
With proper maintenance, the unit should last approximately twenty years or more. Most solar water heating systems are purchased with a five- to ten-year warranty and require little maintenance. Some manufacturers advise a service check annually, but others believe three to seven years should be sufficient.
Overall, it is a wise investment to purchase a solar heater for your home. It should provide you with many years of hot water and leave less of a carbon footprint. Contact a plumber for more information.