Solar domestic water heating systems are able to assist radiant hydronic floor heating systems. For assistance with planning a system, contact us for a site evaluation and consultation.

Considerations:

• A drain back domestic solar water heating system uses heat exchanger(s) to pre-heat water in a solar storage tank. This solar-heated water can be used for various applications, such as domestic water or in-floor heating.
• An existing traditional domestic hot water heating system helps maintain water temperature on cloudy days or when demand is higher.

Requirements:

• Uninterrupted roof area of approximately 6.6'x5' for evacuated tube collectors or 4.5'x8.5' for flat-plate collectors
• Sun for at least 6 hours per day
• Little to no shading
• Direct southern exposure preferred (full south to full west is also acceptable, depending on roof pitch)
• Roof must be in good condition (less than 14 years old for typical shingles)
• A two-tank system requires room for another solar water tank near current tank
• One-tank systems utilize a solar storage tank with internal electric heating element