The RA-28 is the most popular residential model for the whole house and for commercial applications, such as specialty restaurants, convenience stores, hotels, pet grooming shops.
A perfect back-up to Solar and Geothermal passive heat recovery systems and a powerful replacement for boilers and storage tanks used in Hydronic heating and Radiant Floor heating systems. (Minimum 200 AMP Whole House Electrical Service recommended)
SIZE: 15 1/4"x15 1/4"x6 1/4"
WEIGHT: 23 lbs
CONTENTS: 1 gal of water
HTG ELEMENTS: 4 x 7000w
