Calitec Water Heater WH-70
Energy efficient water heater by water circulation
Designed in New Zealand for family homes, the Calitec Mono Block WH-70 boasts high heating capacity, resulting in faster recovery times. Made with the best available parts and materials to withstand the harsh NZ environment, this future-proof system utilizes R290 refrigerant and is PV solar smart inverter ready. Plus, it's capable of heating two separate cylinders!
Whether you are replacing an existing water heating system, building a new home or just researching your options, we are happy to help. A Calitec hot water heat pump system could be the perfect solution.
Connect to a Hot Water Cylinder
The mono block can be paired with the stainless steel Calitec hot water cylinder, specifically designed for optimal usage, or connected to another heat pump ready hot water cylinder (to be confirmed by plumber).
Calitec Mono Block Water Heater WH70
Enjoy savings 75% or more!
An average shower of about 7 minutes will cost you about $1 with a standard electric heated hot water cylinder. With our heat pump, you can bring this down to about 25 cents, saving 75% or more on your hot water heating cost. (Based on 40cent/kWh, 40°C mixed water, 71 L water = 7 min. mains pressure shower).
More info about heat pump hot water in New Zealand and if it is suitable for your household: check out EECA.
Features
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High temperature output: Due to its high output temperature, the mono block effectively functions as a water circulating system, solely utilizing efficient heat pump power to heat your hot water cylinder to 60°C.
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Fast recovery time: With an output power of 5.8 kW, it can heat up 124 litres of water per hour (∆T=40°C). This capacity is twice that of a standard electric heating hot water cylinder.
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COP (Coefficient of Performance): As you may know, the COP of heat pumps varies with the ambient temperature. Typically, the colder it gets, the harder the unit must work, resulting in a lower COP. However, it is possible to optimise the unit for specific ambient temperatures. Our WH-70 unit has been optimised for New Zealand temperatures and tested by CVC Testing Technology Ltd. in accordance with AS/NZS 5125.1.2014 (Performance Test).
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Longevity and durability: The stainless steel casing, combined with high-quality parts and materials, ensures durability, making it capable of withstanding the harsh New Zealand environment, even in coastal areas.
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Dual cylinder heating (Optional): The mono block can heat a second hot water cylinder, such as your ensuite or the kitchen under-bench cylinder.
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Installation: Can be carried out by a plumber, with minimal assistance from an electrician. Whether you need to heat one or two separate hot water cylinders and whether you choose to locate your cylinder inside or outside.
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Environmentally friendly: The R290 refrigerant has a Global Warming Potential of only 3 (compared to 675 for R32, 1430 for R134a, or 2088 for R410a refrigerants). Additionally, it performs better at lower ambient temperatures, significantly reducing energy consumption and your carbon footprint.
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Peace of Mind Warranty: Calitec heat pump units are designed and built using the highest quality parts and are intended to last at least 10-15 years. They are backed by a 5-year warranty on the Mono Block and a 20-year warranty on Calitec hot water cylinders. In the event of any issues that your installer cannot resolve, we provide a replacement unit and facilitate the entire process. For full warranty details, click here.
How does it work?
A water cycle system integrates the heat exchanger within the heat pump outdoor unit, circulating water through the hot water cylinder via a circulation pump.
The maximum pipe length between the heat pump unit and the cylinder depends on the insulation of these circulation pipes.
Our system operates as an intelligently controlled "set and forget" system, ensuring a reliable hot water supply regardless of weather conditions or time of day. This system boasts significant savings, cutting hot water costs by 75%.
For instance, with an average shower costing about $1, you could save up to 75 cents with every shower. (Based on a calculation of 40 cents per kilowatt-hour, 40°C mixed water, and 71 liters of water, which equates to approximately a 7-minute shower.)
In the event of a heat pump failure, the emergency heating element in the Calitec hot water cylinder can be activated, providing a backup solution.
Specifications:
Heat Pump outdoor unit
Power Supply (V/ph/Hz)
Power input (W)
Max. rated input current (A)
Heating capacity @ 7°C (W)
COP @ 8°C /18°C /30°C
Heating capacity @ 15°C (W)
Water production (L/hr) ∆T=40
Water circulation pipe (inch)
Heat exchanger plate type
Circulation pump
Refrigerant
Noise (dB)
Max. rated water temp. (°C)
Water-proof grade
Level against electric shock
Operation temp. range (°C)
Netto weight (kg)
Case
Size (WxDxH) (mm)
WH-70
220-240/1/50
1360
11
5225
4/5/6.2
5830
124
1
GEA GHB 400H-26
Greenpro RS15-6 (A)
R290
≤53
65
IPX4
1
-10 to 45
58
1mm 304 SS
1050x350x638
Calitec Hot Water Cylinders:
The Mono block can be paired with the stainless steel Calitec hot water cylinder, specifically designed for optimal usage, or connected to another heat pump ready hot water cylinder (to be confirmed by plumber).
Our Calitec hot water cylinders, available in 250 or 300 litres, can be installed either indoors or outdoors. Additionally, we offer cylinders equipped with a built-in coil, suitable for wet back installation or as the heating coil if you decide to upgrade to a central heating system.
Our Duplex stainless steel hot water cylinders are insulated with Polyurethane Foam and feature a 3 kW electric emergency heater for added peace of mind.
Water Heater WH-70
Mono Block, R290 refrigerant
Price
NZ$ 3,990
Price incl. GST and delivery in North Island.
Optional:
Pair the Calitec Mono Block with our compatible Calitec hot water cylinders for optimal performance.
Available in 250 or 300-litre sizes.
Calitec Hot Water Cylinders
250 litres hot water cylinder. Price NZ$ 4,190
300 litres hot water cylinder. Price NZ$ 4,490
Prices incl. GST and delivery in North Island.
Calitec WH-70 + Hot Water Cylinder
Set price
WH-70 + 250 litres hot water cylinder.
Price NZ$ 7,890
WH-70 + 300 litres hot water cylinder.
Price NZ$ 8,190
Prices incl. GST and delivery in North Island.
Delivery
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North Island free delivery.
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South Island delivery fee of $ 200.
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Rural areas might require an extra fee.
Installation
Calitec has a network of experienced installers, so we can manage the job from start to finish, or you can organise your own installation with qualified plumbers and electricians. Contact us about details and for a quote.
Disclaimer: The installation of all Calitec systems and products must be done according to local rules and regulations and is solely allowed by qualified tradesmen. Incorrect installation can void (parts of) the warranty.
More technical info
Read our FAQ & Resources pages and our blog for more in-depth information and background.