X-flow fresh water ultratank is the result of a unique technology by Calpak in hot water tanks. Achieving an optimal management of energy was one of the biggest challenges of our company’s R&D department.

The ground-breaking technology of our new fresh water tank, which is protected
by international patent, ensures extremely fast and efficient conduction
of heat.Your benefit, according to official laboratory measurements, is
an extra energy saving of 25% when compared to a conventional tank!

Available in tanks of 500-2000L and combined with heat exchangers with outflow of 1500 L/h, 3000 L/h and 4500 L/h at Δt=1!

0.8dt1/300 (plus) 1.5dt1/500 (plus) 3.0dt1/1000 (plus) 4.5dt1/2000 (plus)
Ideal for houses with increased hot water consumption Ideal for small hotels (25-50 guests) Ιdeal for medium capacity hotels (50-100 guests) Ideal for large hotels (>100 guests)
Hot water supply @ ΔΤ1

 

Hot water supply @ ΔΤ5

800 liters / hour

 

1,100 liters / hour

1,500 liters / hour

 

2,000 liters / hour

3,000 liters / hour

 

4,000 liters / hour

4,500 liters / hour

 

6,000 liters / hour

Counter-flow kit with circulator and CFA/3 controller YES YES YES YES
Buffer tank capacity 300 lt 500 lt 1,000 lt 2,000 lt
Insulation Thickness 100 mm 100 mm 100 mm 100 mm
Thermal Losses 1.6 kwh/24h 1.8 kwh/24h 2.1 kwh/24h 2.5 kwh/24h
Connection with Heat Pump

 

Connection with Boiler (gas or oil)

 

Connection with Solar collectors

YES YES

YES (model “plus”)

YES YES

YES (model “plus”)

YES YES

YES (model “plus”)

YES YES

YES (model “plus”)

Recommended Heating element 3ΚW 4KW 6KW 9KW
Total efficiency of the tank (charge & discharge)  

99%

 

99%

 

99%

 

99%

Energy Savings >25% >25% >25% >25%
Pure water without bacteria 100% 100% 100% 100%