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HeatPump - FAQs

Frequently Asked Questions by Customers

1. How does a Heat Pump Water heater work? How does it save energy?

Heat pump water heaters are engineered to use renewable energy heat sources from the ambient air to heat water. They work like a refrigerator but in reverse. They are highly energy efficient as most of the energy for heating comes from the external environment and only a fraction comes from electricity. Thus for 1KW electricity consumed the heat transferred will be 3KW. The amount of electrical energy needed to heat water is greatly reduced thus saving energy.

2. What is the range of the ambient temperature required to operate a heat pump water heater?

A heat pump water heater can operate between -7°c to 43°c with highest efficiency.

3. What is the maximum temperature of hot water the heat pump can provide?

The maximum temperature it can provide is 60°c.

4. Where can a heat pump water heater be installed?

It can be conveniently installed in a clean, dry room including basements, attics and utility rooms. It should be placed at a practical location to prevent long un-insulated hot water lines to be installed that waste energy and water. The room should be at least 700 cubic feet and be well ventilated. Commercial heat pump models can be installed on rooftops open to atmosphere.

5. How to select a heat pump that would meet my requirement?

First, the amount of water required has to be calculated and accordingly a suitable size has to be selected. For further professional assistance please contact our sales consultant.

6. Are heat Pumps Noisy?

No, most modern heat pumps are very quiet. The source of noise in a typical heat pump is the air passing over the grill, as it is blown through the unit. This sound is usually only marginally higher than ambient room noise.

7. What is the advantage of heat pump water heaters when compared to a Solar water heater?

While solar water heating systems do produce free hot water, they can only operate when there is sufficient sunshine. Therefore they have to rely on an electrical backup on cloudy/rainy days & in winter which adds to the electricity cost. The heat pump water heaters on the other hand can work in any weather, day or night without the use of a backup system right down to -7°c. The volume & temperature of hot water from a solar system will vary with weather; in a heat pump water heater this is constant & irrespective of weather conditions.

8. Compared with traditional water heaters what are the advantages of heat pump water heaters?

Major energy savings upto 75% compared to electric water heaters.

Households or commercial enterprises with large hot water usage can get huge savings from a heat pump water heater.

Convenience of always available hot water.

Environment friendly, green technology.

No electric heating elements; safer & more reliable system.

9. What are the features of VENUS heat pump water heaters?

The salient features of the VENUS heat pump water heaters are:

Wide range of working temperature from -7°c to 43°C.

Heavy duty compressor which is durable and energy efficient.

Microprocessor based control system for precise & convenient operation.

Multiple safety features for protection against overheating, high current, etc that ensures stable operation.

Compact size and ease of installation. Can be installed in any convenient location.

Can be scaled to meet requirements from individual villas to large commercial installations.

High energy efficiency- Coefficient of performance (ratio of output power to input power) can be as high as 4.

9. Are there any subsidies or other government incentives available when we purchase a heat pump water heater?

There are no subsidies, however, any commercial or industrial enterprise can avail of accelerated 80% Depreciation on their investment in Heat Pump Water heaters which are classified as “Energy saving Devices” under Income Tax Act. Additional depreciation benefits will reduce the payback time for these enterprises.

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