Sun Stellar Providing The Cost Saving Heat Pump Water Heaters
These single tank systems are designed for domestic hot water and, unlike an Arctic Heat Pump,
Using a heat pump for hot water is a great investment in warm climates but not in colder climates such as India, where there is a large heating need; here is why. A heat pump is nothing more than what its name implies. It "pumps" heat energy from one location to another. With an Heat Pump water heater, that energy is pumped from outside the house to and indoor buffer storage tank. This is where the cost-saving comes from as the outdoor energy it "pumps" is free. However, if we place a heat pump indoors to transfer the indoor energy to the water tank, this energy is not free as we have already paid to create it in the wintertime via our furnace or boiler.
So, these SUN STELLAR'S heat pump water heaters move paid energy from the basement room to the water tank with $0 cost savings. In warmer climates where cooling is the primary load, these utility-style heat pump water heaters make economic sense as they assist the AC by removing unwanted heat energy from the room at a cost like operating an air conditioner. The hot air in the room is pumped into the water tank, leaving the house colder.
A SUN STELLAR Heat Pump system heats hot water completely different than any packaged water heat pump. The heat pump is located outside, removes the "FREE" energy from the air, and transfers it to a buffer tank.
In most cases, we recommend a small water tank or tankless heater be used after the heat pump to top up the heat to a higher temperature. Freon R410A in any heat pump, including geothermal, has a maximum temperature of approx. 130 F, and as such, to reach 140-160 F, the water will require a small boast.