An air water heater uses heat drawn from the surrounding air to warm water, and it is the product that gives this company its name. Herambh Coolingz is an air water heater manufacturer, supplier and exporter based in Aurangabad, Maharashtra, serving customers across India and overseas.
Because the heat is moved rather than burned, an air water heater can deliver several units of heat for each unit of electricity used. That efficiency makes it attractive wherever hot water demand is steady and electricity cost matters.
What an Air Water Heater Is
An air water heater is a heat pump applied to hot water. A fan draws ambient air across an evaporator coil, where a refrigerant absorbs heat and evaporates; the refrigerant is then compressed, raising its temperature, and releases that heat into the water through a condenser.
The water never contacts a flame or an element directly, and the heat it carries comes mostly from the air rather than from the electricity that runs the compressor.
Why It Saves Energy
A conventional electric element turns one unit of electricity into at most one unit of heat. An air water heater moves existing heat into the water, so the same electricity can deliver a multiple of that heat, which shows up directly as a lower running cost.
The advantage is greatest where hot water is used continuously, such as in hotels, hostels, hospitals and process plants, because the heater runs steadily instead of in short bursts.
Typical Applications
Hotels, resorts, hostels and hospitals use air water heaters for domestic hot water. Dairy and food processing use them for wash and process water. Textile, pharmaceutical and chemical units use them where warm water is needed in quantity with modest temperature rise.
Because the unit needs only air and electricity, it suits sites without gas supply and sites where a boiler is impractical or unwanted.
Construction and Components
An air water heater brings together a compressor, an air-side evaporator coil with fan, a water-side condenser, an expansion device and a control system in one unit. The water circuit is usually a tank or a flow-through exchanger depending on the application.
Materials are chosen to resist the water chemistry and the ambient conditions, and the cabinet is finished for outdoor or plant-room installation as required.
Installation Considerations
Placement matters because the unit needs a good supply of ambient air and somewhere to discharge the cooled air. A well-ventilated plant room, a roof or an open area keeps performance up; a cramped, hot corner reduces it, since the heater works best when the air it draws is cooler than the water it is heating.
Correct sizing, insulation of hot water lines and a sensible set point all protect the energy advantage that the heat pump offers.
Selection and Sizing
Selection depends on the daily hot water volume, the temperature rise required, the ambient air temperature through the year and the recovery time wanted. In cooler conditions the heater produces less, so sizing must reflect the worst month rather than the best.
Herambh Coolingz sizes air water heaters around the actual demand profile of the site, so the unit is neither undersized on peak days nor oversized for the rest of the year.
Maintenance
Service is straightforward: keeping the air coil clean, checking the fan and compressor, verifying refrigerant charge and confirming controls. A clean air coil is the single most important item, because dirt on the coil directly reduces heat absorption.
Regular checks keep efficiency high and give early warning of anything drifting, which is far cheaper than repairing a neglected unit later.
Air Water Heater Compared With Other Options
Compared with a plain electric geyser, an air water heater costs more to buy but far less to run where demand is significant. Compared with a boiler, it avoids fuel handling, emissions and the need for licensed operation, and it is safer because no combustion takes place.
Where the site also needs cooling, a heat pump can in principle serve both duties, but for most industrial users the straightforward benefit is reliable hot water at a lower energy cost than electric resistance heating.
- Uses ambient air as the heat source
- Lower running cost than electric resistance heating
- Suits hotels, hostels, hospitals and process plants
- No fuel storage or combustion
- Tank or flow-through water circuit options
| Parameter | Details |
|---|---|
| Heat source | Ambient air, drawn across an evaporator coil |
| Working principle | Vapour compression heat pump cycle |
| Water side | Storage tank or flow-through condenser |
| Control | Thermostat with safety cut-outs |
| Installation | Needs good air supply and discharge |
| Service | Regular air coil cleaning to hold efficiency |
To discuss an air water heater for your hot water demand, share your daily volume, temperature rise and site conditions with Herambh Coolingz.