Can VELUX solar systems be used in homes that have large garden, or jetted, tubs?
Yes. However, when sizing a VELUX solar water heating system for use with a large tub, you will have to make sure that you have adequate backup storage volume to meet the volume requirements of the tub (when a tub is filled, approximately 70% of the water used is hot water from the water heater). When sizing for a large tub, please follow the following steps: 1) Select the VELUX system that is required for the number of occupants in the home (for a 3-4 person household, select the two collector/80 gallon system; for a 5-6 person household, select the three collector/120 gallon system). 2) Determine if the VELUX system selected will meet the volume requirements of the large tub. The VELUX two collector/80 gallon system has approximately 40 gallons of backup storage volume, which by the 70% hot water rule, will support tubs up to about 60 gallons. The VELUX three collector/120 gallon system has approximately 70 gallons of backup storage volume, which by the 70% hot water rule will suppor
