</p>It basically means that water comes in from the main (city, well, ect) goes though the solar panel and then to the cold water inlet on the hot water tank. This is a rather crude method and does not have any protection from freezing, over heating, storage. It is less efficient mostly due to the lack of preheated storage. Ask yourself “what time of day are my hot water needs?” High noon is not the the most common answer. But that is when the panel output can be at its maxium.
It shouldn’t be that much. The circulating pump may be oversized for the panel output or its not installed to automatically turn on and shut of with a proper delta temperature. Or it could just be a bad pump.
Yes, by a conventional water heater I mean ELECTRIC, NATUAL GAS, PROPANE, OIL. The water heaters that most people have.</p>
I would be interested in thier answer if they said no. </p>
That’s correct …buuuut… the temp of the water from the panel will change thoughout the day. It is better to put the temp of the boiler to the desired thep you want. Then use the solar water to augment the demand on the boiler by preheating the water. </p>
Ideally you can use separate insulated large tank that uses a stratification/thermo siphon system to provide preheated water long after the sun has gone down.
Todd, What brand fo panel system are you using? And again, Where are you located. This would help a great deal.