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This SunMaxx20 evacuated tubes set runs in parallel with a total of 6 SunMaxx20 systems for a total of 120 tubes. These tubes collect enough heat to power this small office building of 20 employees and a 5000 square foot building allowing. The hot water runs down through the roof into the radiant floors and baseboard which acts as the heating storage component making the hot water last for hours well in through the night. When the temperature drops....the existing hot water boiler system kicks on to maintain the water temperature at a certain level. In this building the hot water bill went from 800 per month to 200 without SRCC credits.

We used our existing commercial system boiler for a 5000 square foot building and piped several SunMaxx solar hot water systems into our main line using a solar external heat exchanger. Works great! My system exististed with just creating a separate looped system allowing the hot water from the collectors to cycel through an external heat exchanger and increasing the temperature of the circulation radiant floors!

SunMaxx 20 Evacuated tubes are idea for small to large solar hot water heating systems. SunMaxx 20 evacauated tube system are perfect for connecting in parallel with one anothe allowing for maximum efficiency in both output and roof spacing. This SunMaxx system is capable of heating both radiant floors and standard baseboard water heat in this small to medium size business.