Frequently Asked Questions

What is SUNNE® HEATER, how does it work and what are its benefits?

SUNNE® HEATER is a thermal battery that catches and store heat from the sun during the day with high efficiency (87%). At the time of use, house water flows through the module and gets heated to up to 180 degrees Fahrenheit. SUNNE® Heater modules have many significant benefits, for instance:

  • It can save you 30% on your electricity bill
  • Lower than an air conditioner consoles, it does not show on your roof
  • It resists winds of over 250 mph
  • It does not accumulate sediment
  • It takes little roof space
  • It has high corrosion resistance
  • It is designed and manufactured in Puerto Rico
  • Saves CO2 emissions to the environment
How many SUNNE® HEATER modules will I need?

The number of SUNNE® HEATER modules needed to supply all water heating needs will depend on several factors such as house square footage (since there are pipe thermal losses), number of occupants and number and type of appliances that use hot water. For example, for  2000 SF with 2 occupants, a system of 2 modules is recommended. However, customers have started saving by installing 1 or 2 modules and adding more at a later time. Click here for more information.


How much water does SUNNE® HEATER modules can heat?

On an average day each SUNNE® HEATER module can heat up to 90 gallons of water at 95F when ground water temperature is 77F. This amount should be multiplied by the amount of modules to be installed.

What is SUNNE® HEATER's warranty?

SUNNE® HEATER modules have 10 year limited warranty on problems with labor and/or materials. Click here for more information.

How much CO2 do each module offsets?

For every 2 SUNNE® HEATER modules that are installed the CO2 emissions equivalent to those emitted by 1 car are offset.

What maintenance do SUNNE® HEATER systems require?

SUNNE® HEATER systems require little maintenance. In order to get the most value and increase durability of your SUNNE® HEATER system:

  • Clean glass once a year
  • Check Heat Transfer Fluid (HTF) level and add water as necessary
How difficult is to install SUNNE® Heater modules?

SUNNE® Heater modules and systems can be installed by any trained plumber or skilled do-it-yourselfer. All plumbing connections are 1/2" Male. Modules should be anchored facing south. All SUNNE® products include installation and operation manuals. Click here to access the manual.