Selecting A Solar Water Heater To Install

Before you purchase and install a solar water heating system, you want to do the following:

• Consider the economics of a solar water heating system
• Evaluate your site’s solar resource
• Determine the correct system size
• Determine the system’s energy efficiency
• Estimate and compare system costs
• Investigate local codes, covenants, and regulations.

For information about specific solar water heater models and systems, you can request to talk to a solar professional by clicking here

Installing and Maintaining the System

The proper installation of solar water heaters depends on many factors. These factors include solar resource, climate, local building code requirements, and safety issues; therefore, it’s best to have a qualified, solar thermal systems contractor install your system.

After installation, properly maintaining your system will keep it running smoothly. Passive systems don’t require much maintenance. For active systems, discuss the maintenance requirements with your system provider, and consult the system’s owner’s manual. Plumbing and other conventional water heating components require the same maintenance as conventional systems. Glazing may need to be cleaned in dry climates where rainwater doesn’t provide a natural rinse.

Regular maintenance on simple systems can be as infrequent as every 3–5 years, preferably by a solar contractor. Systems with electrical components usually require a replacement part or two after 10 years. For more information about system maintenance, see the following:

• Solar Water Heating System Maintenance and Repair
• Solar Water Heating System Freeze Protection
• Scaling and Corrosion in Solar Water Heating Systems

When screening potential contractors for installation and/or maintenance, ask the following questions:

• Does your company have experience installing and maintaining solar water heating systems?

  Choose a company that has experience installing the type of system you want and servicing the applications you select.

• How many years of experience does your company have with solar heating installation and maintenance?

  The more experience the better. Request a list of past customers who can provide references.

• Is your company licensed or certified?

  Having a valid plumber’s and/or solar contractor’s license is required in some states. Contact your city and county for more information. Confirm licensing with your state’s contractor licensing board. The licensing board can also tell you about any complaints against state-licensed contractors.

For contractor information, see the Professional Services resources listed on the right side of this page (or below if you’ve printed it out).

Improving Energy Efficiency

After your water heater is properly installed and maintained, try some additional energy-saving strategies to help lower your water heating bills, especially if you require a back-up system. Some energy-saving devices and systems are more cost-effective to install with the water heater.

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