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Should any design precautions be made for cold climate environments?

Yes. As noted in the Fuji Clean Installation Manual, we recommend insulating the upper half of the system tank, discharge pump (if applicable), discharge line and D-box for all installations in cold climate environments.  Recommended insulation is 2 inch rigid foam board (R-10 insulating factor) covering the system and about 6” over discharge lines to stop frost penetration into the ground.

Fuji Clean recommends that this “cold climate” procedure be followed within the USDA  Zones 3-6.  A sample map and further information about these zones can be obtained at: www.usna.usda.gov/Hardzone/ushzmap.html.