The main advantage of State heat pumps over the conventional type electric water heaters is the ultra-efficient water heating that result in low operating costs.
High energy factor of up to 2.75 is the reason why State heat pump is the only electric unit that is Energy Star compliant and subjected to utility rebates.
According to the State manufacturer, the heat pump can save approximately $30 per month when compared to electric units, and the payback period can be 2-3 years.
This type of water heaters is coming from the Premier series and is also known as hybrid because of the combined use of conventional electric-powered and heat pump technology. The implementation of these two technologies is what makes heat pumps unique and versatile. The unit uses the compressor, fan and external coil heat exchanger to extract the heat from surrounding warm air and transfer to water, while the electric heating elements are used as a backup when more power and faster recovery is needed.
Another great advantage is the advanced electronics that provides more options to the users; you can select the temperature between 95 F and 150 F, take advantage of the diagnostic system and select one of the four operating modes depending on demand and needs for hot water.
The efficiency mode provides great savings since the heat pump is the only one used. Hybrid mode is used in applications where fast recovery is needed and it combines heat pump and electric heating elements depending on demand. This mode provides the highest energy efficiency. In electric mode the water heater utilizes the heating elements only, while in vacation mode, during the extended stay for example, the unit maintains the tank temperature of 60 F as protection from freezing, and up to 99 days in 50-gallon models.
State heat pumps are available in three sizes, 50, 60 and 80 gallons, and with the higher capacity the unit operates in the maximum efficiency mode with greater performance. The foot print is almost the same as the conventional type water heaters, while these models are taller due to the addition of the heat pump. It is perfect for high demanding homes and families.
EPX 60 DHPT is the 60-gallon water heater while the EPX 80 DHPT is 80-gallon model. EPX 80 DHPT has the same footprint as the 60-gallon model but is taller by 14 inches (approx. 81 vs. 67”) and heavier by 45 pounds. It has more capacity and better first hour rating in all modes but slightly lower energy factor in two modes, while in hybrid mode EF is the same.
SPX 50 DHPT is the 50-gallon heat pump water heater that has the lowest first hour rating of all three models, but highest energy factor in all modes, where the hybrid mode gives the highest 2.75.
This model uses different temperature controller than other two models, it is larger, has bigger selection buttons, and utilize the communication port that allows easy distant control and monitor via smart phones, tablets and computers, also connection to utility saving programs. The temperature controller on 60- and 80-gallon water heater is smaller, but has larger display and still easy temperature and mode selection and diagnostic tools.
All State heat pumps are equipped with more or less quality elements such as the long-lasting backup heating elements, protective sacrificial anode rod on 50-gallon model and powered anode on 60- and 80-gallon models, 2” thick foam insulation, tamper-resistant brass drain valve and dry fire protection system.
The hybrid design allows installation in almost any region, while it works the best in milder climates. If you have the utility room with the furnace or any type of the appliance that emits the heat, the heat pump can take advantage as it will take that heat to heat water and cool down the room. The Premier heat pump is the most effective energy-efficient option for consumers who use electricity for water heating, as they can reduce the utility costs up to 66% and provide payback in less than 3 years. State provides a warranty of 10 years on all models.
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Picture - courtesy of State company