Sizing Guide

The following applications and system sizes are recommended in northern climates:

• Domestic Hot Water (DHW) : 10 tubes for each resident
• Radiant Heating : 1 – 3 tubes per 10 sq. ft. heating area. (Radiant heating is recommended to be combined with a summer application, such as a pool or spa.)
• Swimming Pool : Approximately 3 tubes per 10 sq. ft. of surface of indoor or covered outdoor pool.
• Spa / Hot Tub : 30 to 60 tubes for up to 400 gallons.