AET Solar Hot Water Systems are pre-engineered in Direct (open loop), Indirect (closed loop), and Drainback styles. Systems are configured for PV (photovoltaic) or AC pumps. The systems designed for tropical regions are the "D", and "DPV". For hard freezing climates the "I", "IPV" and "DB" are specified. All AET systems can be sized to accommodate any load with maximized energy savings and design life. All systems are SRCC certified. Check here for tax credits in your area.
Drainback "DB" System AET "DB" Specifications
The "DB" System provides a reliable method for ensuring that the collectors never freeze. This is done by removing all the water from the collector(s) when the system is not producing heat. Each time the pump shuts off, the water in the collector(s) and piping drains
into the insulated reservoir tank.
Indirect "I" System
AET "I" Specifications
The "I" System is designed to accommodate climates where freezing weather occurs. Instead of water flowing through the collector, an antifreeze solution is circulated. A heat exchanger is located within the storage tank. This maximizes the
heat transfer from the antifreeze solution to the coldest water in the storage tank.
Indirect "IPV" System AET "IPV" Specifications
The "IPV" System is similar to the "I" System except that the energy needed to power the pump is provided by a photovoltaic (PV) panel, which powers a DC pump. The transfer fluid
circulates through the system only when the sun is shining.
Direct "D" System AET "D" Specifications
This system consists of solar collector(s)
installed on the roof and a hot water storage tank. An AC pump circulates the water from the tank to the
collector and back. The "D" System utilizes a differential control to sense the temperature differences
between water in the collector and the water in the storage tank, and to activate the pump.
Direct "DPV" System AET "DPV" Specifications
The "DPV" System is identical to the "D" System except that a photovoltaic panel provides the energy required to power the
pump. The photovoltaic panel converts sunlight into electricity to power the (DC) pump. Thus
water circulates through the system only when the sun is shining. AET Solar Kits do NOT include the collectors. Collectors can be found here. For a list of all components in each kit, click here.
AET Solar products cannot be sold in Florida, Hawaii, or the Chicago Area
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