Quick Answer
The cost of installing a closed loop solar hot water system ranges from $12,000 to $30,000, depending on the size of the system, materials, and installation complexity. This estimate includes the cost of the solar panels, collector, pump, control unit, and tank. A typical system can provide 80 to 100 gallons of hot water per day.
System Components and Costs
A closed loop solar hot water system consists of several key components, including the solar collector, pump, control unit, and tank. The solar collector is typically a 4x8 foot panel with 40-60 feet of 1/2 inch PEX tubing inside. The cost of the collector panel is around $2,000 to $3,000, while the PEX tubing costs around $500 to $700.
Installation Considerations and Labor Costs
The installation of a closed loop system requires careful planning and execution. The system typically needs to be installed at a height of 6-8 feet above the roof to ensure proper drainage and to prevent freezing. Labor costs for installation can range from $5,000 to $10,000, depending on the complexity of the installation and the location.
Energy Efficiency and Payback Period
A well-designed closed loop system can provide 80 to 100 gallons of hot water per day, which can save a household around $1,500 to $2,500 per year on energy bills. The payback period for such a system can range from 5 to 10 years, depending on the cost of the system, energy savings, and government incentives. A typical system can operate for 20-30 years with minimal maintenance, making it a long-term investment in energy efficiency and cost savings.
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