Comparisons | | Solar | Heat-Pump | - Reliant on sunny conditions
- Water temperature fluctuates depending on
climatic conditions
- “Top-up” electricity heating ma be necessary for
morning demand, or if temperature drops with
overnight storage
- Water volume is limited by capacity of storage
tank / geyser
- Large surface are required for multiple panels
- Orientation and positioning og panels is critical
to their performance
- Water filled panels are heavy, adding costs to
building structures
- Unsightly to some
- Playback time is difficult to determine as weather
conditions affect efficiency if back-up heating is
required | - Can operate 24/7 in all conditions, day &night(if
required)
- Produces hot water up to 60oC controlled and
maintained to set point
- Hot water is being produced whilst hot water is
being used
- Water use can be up to 1.8 times the volume of the
storage vessel
- Compact design, space saving, small footpring
- Versatile installation
- Units can be mounted distant to demand area, on
brackets or on plinth
- Unit “pays for itself” with proven savings on monthly
electricity bill. If rates increase,payback period is
reduced | | Solar panels can be incorporated with the heat-pump | for greater efficiency |  |  |
| Energy consumption comparison | | |
Self contained / domestic
4 models
Capacities of 1.5 kw & 2.6 kw
Storage from 150 to 300 liters
|  | Domestic & Small Commercial units
Medium Capacity 5 models between 2.8 < 7.2 kw |  | Industrial Applications
from 10kw up to 616kw |  |
| Self contained domestic water heaters | | -3 models – 150, 200 & 300 liter storage
-heating capacity of 2.6 kw, power consumption 810w
-self contained unit with S/S storage tank
-instant hot water between 48oC – 60oC
-Fitted with sacrificial anode to remove suspended solids in water
-ideal for indoor installation
New model: 1.5kw capacity, 190 liter storage
-500w power supply
Water outlet temperature 38-70oC
-outdoor installation under “semi-cover” | 
 | Domestic Integrated heat pump water heaters
 | |
| Small capacity units – 1:1 hot water with external storage |  | | -If water temperature in storage drops, pump is activated and water is circulated through heat-pump, re-heated and pumped until set temperature is achieved. | | Commercial range with multiple indoor units
Digital scroll cycle-heating air-con type |  | | High efficiency digital scroll compressor Multi-functional air-conditioning with central water heating |
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