Energy efficient, high quality, affordable heat pump hot water for NZ homes
Hydronic Home Heating/Cooling
The Calitec Hydronic Home System is a single system designed to efficiently heat and cool your entire home while also providing hot water.
Available in two models: Complete and Basic.
Complete
The Complete model comes fully equipped with the heat pump, heat exchanger, buffer vat, expansion vat, heating circulation pump, and a 3-way valve. It can be seamlessly connected directly to the hot water cylinder coil and heating/cooling circuit, such as radiators, underfloor heating, or fan coil units.
When utilizing a radiator or underfloor circuit, heating is the primary function. However, with a Fan Coil Units circuit installed, you can both heat and cool your home, harnessing the full capabilities of the heat pump.
Basic
The Basic model is solely the heat pump with the heat exchanger and circulation pump. This option is designed for replacing existing diesel or gas burners and requires separate installation of a buffer vat, 3-way valve, etc.
Both models are available in various sizes ranging from 7 kW up to 18 kW (single phase). For capacities above18 kW, 3-phase power is required.
Note:
Currently we are only supplying the Hydronic Home System but in the near future we will also stock different models of fan coil system parts.
Calitec Hydro System Complete
Calitec Hydro System Basic
How does it work?
The Hydronic Home System utilises a mono-block inverter heat pump to transfer ambient energy to water. In heating mode, the water can be used to heat either your hot water cylinder or your heating circuit.
The buffer vat plays a crucial role in equalising energy needs and water flow speed differences between the heat exchanger and your heating/cooling circuit, ensuring the inverter heat pump operates at the smoothest speed possible for optimal energy savings. Additionally, the expansion vat helps regulate water pressure differences within your home's heating/cooling circuit.
With the Complete model, all essential components such as the buffer vat, expansion vat, 3-way valve, and circulation pump(s) are pre-installed, insulated, and tested. This setup not only saves on installation costs but also provides a streamlined and efficient system.
Heating and Cooling Circuit
When connecting the hydro system to a heating/cooling circuit, whether it be radiators, underfloor heating, or fan coil units, it's important to know that the efficiency of heat pumps, in general, decreases with higher water temperatures, and ours are no exception.
Underfloor circuits are running on the very efficient low temperature already. When designing radiator circuits however, you must wiggle between smaller radiators and higher a water temperature of 60°C, or larger radiators and a more efficient lower water temperature of 45°C.
Fan coils could be an option
Fan Coil Units (FCU) are basically radiators with a fan behind it and a drain pan under it. With the fan we can force room temperature very quickly, and with the drain pan we can use it for cooling as well.
We will be stocking three models soon:
Floor model:
This is like a radiator to the wall. Please note that these need a drain connection in or under the floor.
Ceiling Cassette model:
This is a compact unit in the ceiling. Like aircon cassette units but due to the size it could be intrusive.
Ceiling Concealed model:
This unit is to be installed in the attic space or under the floor and circulates the air through ducting and air-diffusers. It is less intrusive, and the air-diffusers could be combined with fresh air ventilation systems.
Technical specifications
Power:
Refrigerant:
Single phase / 220-240 V
R290
More details soon. Contact us.
Hot Water Heating
More updates soon.
The inner cylinder of the hot water cylinder is made out of Duplex stainless steel (2205 - marine grade) and comes with a 20 year warranty. The skin of the hot water cylinder is made of 304 stainless steel, just like the case of the outdoor unit.
Pricing
Hydro - Complete Model
Contact us for pricing
Hydro - Basic Model
Contact us for pricing
250 litre or 300 litre
hot water cylinder
NZ$ 4,190 / NZ$ 4,490
incl. GST and delivery in North Island.