Quick Answer
A hot water recirculation system can be used in winter, but it may consume more energy and increase your heating bill due to the constant circulation of hot water through the pipes.
Understanding Hot Water Recirculation Systems
In a typical hot water recirculation system, a pump circulates hot water from the water heater to the fixtures and back to the water heater, eliminating the need to wait for hot water to flow through the pipes. This system is particularly useful in cold climates like winter prep cabins where the water heater is often located far from the fixtures, requiring longer pipes.
System Design for Winter Operation
To optimize the performance of your recirculation system in winter, consider the following: install a thermostat-controlled pump to only circulate water when it’s needed; use a timer to limit the pump’s operation to specific times of the day; and install a mixing valve to blend hot and cold water, reducing the energy required to heat the water.
Energy Efficiency and Cost Considerations
When using a hot water recirculation system in winter, be prepared for increased energy consumption. According to the US Department of Energy, recirculating hot water can increase your energy bill by 10-20%. To mitigate this, consider installing a high-efficiency pump, using insulation to minimize heat loss in the pipes, and selecting a water heater with a high Energy Factor (EF). A well-designed and operated recirculation system can save energy and water in the long run, but it’s essential to weigh the initial investment against the potential energy savings.
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