Instead of producing heat directly, heat pump water heaters use energy to transport heat from one location to another. In comparison to traditional electric resistance water heaters, they can be two to three times more energy efficient. Heat pumps function like a refrigerator in reverse to transport the heat.
How do you select the right size heat pump?
Look for the right size tank– Choose a tank that is the same size as or greater than your current tank. Compared to their smaller counterparts, larger units are often more efficient, can store more hot water, and provide better prospects for financial savings through utility demand response programs and time-of-use rates.
Look for efficiency– It may surprise you to learn that heating water for usage in your house uses a lot of electricity. There are three primary areas where energy is wasted in this process: during the energy-to-heat conversion, when the hot water is stored in the tank (if you use a conventional storage-tank water heater), and when the hot water is routed to various locations throughout the home. It makes sense to attempt and reduce the energy used for hot water as it represents the second-highest energy demand on your energy bill.
The efficiency of a high-efficiency water heater is increased in both the area where energy is transformed into heat and the area where heat is retained in a storage-tank water heater. This often entails more effective heaters, heat traps, and insulation for the tank walls. The most effective water heaters even incorporate a condensation system that allows heat to be recovered from exhaust gasses that would otherwise merely be discharged to the outdoors.
Cost of a tank– All-electric houses are less expensive to build when they are brand-new, and a heat pump water heater is an essential part. Since the heat pump was probably not considered while building the home, heat pump water heaters for existing homes may have a greater upfront cost. In either scenario, a Heat Pump Water Heater may prove to be more economical in the long run, particularly if it operates at less expensive off-peak rates.
Noise– Every Heat Pump Water Heater has a compressor inside that works like a refrigerator and makes noise when it’s running. The operation is quieter the lower the decibel level. Indoor installation makes noise management particularly important. Locate the unit in the garage or look for units with a decibel level (dBa) of 55 or less. A refrigerator, mild traffic, and calm conversation all fall within the range of 50 dB.
Electrical panel– Check your main service panel to check if it can manage the additional electric demand that a Heat Pump Water Heater would bring; most units need 30 Amps, but some only need 15. You might wish to replace your panel now if you’re thinking of using an electric heat pump to reduce your carbon footprint even further or switching any gas appliances to electric.
Refrigerant– Some appliances use CO2 refrigerants that are found naturally, which have the lowest potential to cause global warming. Most heat pumps make use of synthetic refrigerants like R410A or R134A.
Installation methods
It is advised to work with a contractor who has experience with heat pump water heaters. A proper installation includes capping the existing heating system that supplied your old water heater in addition to connecting the heat pump to your main electric service panel.
Zanskar water heater has a 300 litres capacity, pulls hot surrounding air in, and increases the temperature of the refrigerant. It creates a constant cycle of passing the heat and absorbing the heat again. This system is easy to operate and does not require extra wiring & plumbing. With trained water experts and free installation, you can save a lot of money and trouble.