Glycol returns after it is heated by the sun and through a heat exchanger warms the potable water.
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3.
Domestic cold water supplies solar pre heat tank and cools down domestic water supply if it gets too hot.
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4.
Domestic hot water travels from the solar tank to back-up tank where it is supplemented if needed.
Solar thermal collectors capture and retain heat from the sun and transfer this heat to a liquid.
To be eligible for Snohomish PUD cash incentives or loans, photovoltaic and solar hot water systems must be installed by a PUD registered solar installer. All listed solar installers are licensed, bonded and insured and have solar installation experience and/or training.