Project Overview:
This system was installed on an existing dairy barn to preheat domestic hot water for the 2, 227- liter (60-gallon) electric water heaters. Because of the frequency of electricity interruptions a larger expansion tank was installed to take up the expansion as the system steamed the liquid out of the manifolds. The capacity of the 2, 120-gallon preheat tanks allows for storage of hot water from the previous day. All-around performance of the system year round as well as a fast return on investment made the purchasing this system a logical move.
System Components & Performance
Solar Thermal System
- Collectors: 8 x Akotec, 20 Tube Direct Flow Collector
- Peak Output: 57,761 BTU (th)/h (16.9 KW) *
- Pump Station: 1 x Paw ¾” Pump Station with ext. heat exchanger
- Solar Tanks: 2 × A.O. Smith 450 L (119 USG) storage tanks
- Lineset: Pre-insulated Corrugated Stainless Steel Tubing
* Peak Output taken from the Enerworks Akotec Solar Keymark certificate.