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.
Solar System Components:
| COMPONENT | DESCRIPTION |
|---|---|
| Collectors | 8 x S-Power, 20 Tube Direct Flow Collector |
| Peak Output | 57,761 BTU (th)/h (16.9 KW) * |
| Pump Station | 1 x Paw ¾” Pump Station with external heat exchanger |
| Solar Tanks | 2 x A.O.Smith 450 Liter (119USG) storage tank |
| Lineset | Pre-insulated Corrugated Stainless Steel Tubing |
* Peak Output taken from the Enerworks S-Power Solar Keymark certificate.