DualSun heats up Bairnsdale, VIC

Supreme Heating was initially consulted to discuss the customer’s concerns about the inability to use their swimming pool with their current form of heating.

The swimming pool is heavily shaded from the house and is exposed to high winds. Featuring a negative edge design, the use of a pool cover was not an option. These factors all significantly contribute to heat loss.

The existing evacuated tube solar pool heating system was grossly undersized and had impacted the family’s use of the pool for the last three years.

The customer was also considering the installation of a solar PV system to reduce their large electricity bill, with an average household consumption of 95kWh/day.

Assessing both the customer’s pool heating requirements and energy concerns, Supreme Heating proposed a two-in-one solution providing adequate heating for the swimming pool and reduced electrical expenses.

Supreme Heating designed a solution consisting of a 10.08kWp & 28.58kWth DualSun PV/T solar system coupled with a 40m² Heatseeker Plus traditional strip solar system to meet the heating requirements of the pool.

The design of the thermal pool heating system was based on the Pool Heat simulation program that included heat outputs from both systems.

The PV electrical system size was chosen based on the customer’s budget.

The Heatseeker DualSun system generates an average of 40kWh/day, covering approximately 42% of the daily household electrical consumption. This equates to a saving of $3650/year.

The solar thermal outputs create acceptable swimming conditions during the warmer weather period of late November until late March with pool temperatures reaching up to 28-32°C.

The equivalent cost of using an inverter heat pump to create the same energy outputs of the solar system would be $3330, negating the benefit of the electrical savings provided by a standard PV system.