Market Presence Grows with Environmental Concerns

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Itomic Corporate Profile

Founded in 1948, Itomic is a leading manufacturer of electric

water heaters for business use in Japan. IKS, a subsidiary of

Itomic in Kyoto, along with Tokyo Electric Power Company

(TEPCO), have co-developed Eco-cute. The product was put

into the Japanese market in 2002, and so far over 1300 units

have been sold since then.

1 Company profile

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What is Eco-cute?

2 What is Eco-cute?

Heat pump water heaters which make hot water with the heat

generated from pressured air, with the following conditions;

are officially called “CO2 Heat Pump Water Heater”,

or ECO-CUTE as commercial name.

1 ） Using CO2, not HFCs

2 ） COP is more than 3.0 (COP:Coefficient of Performance)

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What is Heat Pump?

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By using CO2 as refrigerant, Eco-cute has realized 300% energy consumption performance.

Notable is that it heats up water as hot as 90℃ even in the ambient temperature at around -

20℃.

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1 ＋Electricity

3Heat from

the Air

＝ 4HW Supply

Energy

What is Eco-cute?

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① Effect caused by various refrigerants on the environment

Refrigerant

2 What is Eco-cute?

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Refrigerant

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② Real volume of HFC emission

×3,100

Approximately 1kg of HFC gas is filled in one air

conditioner. This is equivalent to 3,100 swimming pools

of 25m, when converting to volume of CO2.

Appliances using CFC/HFC/HCFC refrigerantsProper collection of those gases is required to prevent global warming HFCs equivalent to 56 ton ｓ of CO2 (GHG) are used

What is Eco-cute?

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Refrigerant

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■Compared with Eco-cute, other combustion

type water heaters show 2.5 times more

CO2 emission, which undoubtedly puts

considerable stress on the Environment.

※HFC water heater contributes to the emission of

CO2 either from leakage or in the process of

treating it at high temperature.

③ CO2 emission comparison with other energy sources

CO2 emission basic unit

Power ： 0,378 （ kg-CO2/kWh)

Natural gas ： 2,36 （ kg-CO2/N ㎥）

unit ：kg

What is Eco-cute?

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Refrigerant

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④ Advantage for choosing CO2 as the refrigerant

Characteristics of R410A,HFC

1 ） Heat exchange temperature is at about

65℃2 ） Compression ratio of 5.3 results in poor

operational efficiency.

Characteristics of CO2

1 ） It enables smooth heat exchange for the

absence of ts*.

2 ） Compression ratio of 3.5 brings out better

operation efficiency.

*ts denotes ‘temperature saturation’

What is Eco-cute?

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Characteristics of CO2

1 ） It enables smooth heat exchange for the

absence of ts*.

2 ） Compression ratio of 3.5 brings out better

operation efficiency.

Refrigerant

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*ts denotes ‘temperature saturation’

What is Eco-cute?

Characteristics of R410A,HFC

1 ） Heat exchange temperature is at about

65℃2 ） Compression ratio of 5.3 results in poor

operational efficiency.

④ Advantage for choosing CO2 as the refrigerant

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History ： Diffusion of Eco-cute in Japan

3 Domestic market growth of Eco-cute

Residential

Jointly developed with Denso and TEPCO

Initially marketed in 2002

Approx.1.7million units have been sold by Japanese makers Commercial use.

Industrial

Co-developed by IKS (a subsidiary of Itomic) and TEPCO

Itomic marketed it in the world as the first of its kind.

Approx. 8000 units sold domestically, of which 1300 are by Itomic.

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Factor ： Diffusion of Eco-cute in Japan

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① Supports by Government / Extra-governmental organization

1 ） Set up organizations to promote high-efficient water heaters

2 ） Established awards like “Energy Conservation Award” and “Thermal storage gathering”

3 ） Conducted events to propagate and teach the public for the product merits.

4 ） Allocated funds for subsidy (For Eco-cute only)

Domestic market growth of Eco-cute

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Factor ： Diffusion of Eco-cute in Japan

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1 ） Successful marketing with a pet name of “Eco-cute,” used by any manufacturers.

2 ） Traditionally inefficient industry has turned to be energy saving and ecological.

3 ） Offer new power contract menus (Commercial thermal storage contract)4 ） By drawing in other makers to co-develop the products, a competitive

market was induced.5 ） Take joint actions with makers to increase sales promotional campaigns.6 ） Conducted series of events, such as as workshops, exhibitions, and talk

shows.

② Strong back up from the power companies.

Domestic market growth of Eco-cute

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Constituents of Purchasers

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Constituentes of purchasers of

Industrial Eco-cute （ domestic ）

＝ 50unit

Itomic Commercial Eco-cute

■Reason:

①Low running cost

②Fire hazard

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Cost Reduction

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Example Nursery home① 　

Application: Bath rooms / kitchens

System: ： Standard size with 4 units

Reason ： Low running cost, low risk of fire hazard

(compared to oil/gas boilers)

Note ： Itomic offered the optimized operation based on

one year survey. Over all 40% Cost-down is

contributed by reduction of re-heating in daytime

and increase for night time operation.

Itomic Commercial Eco-cute

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Example Upscale Condominium②

Application ： Overall HW

System: ： Standard size with one unit

Reason ： Solution for high running cost of 3 large-sized

gas WH for 9 house holds Low risk of fire hazard

Note ： Cut down 51% annual running cost.

Cost Reduction

4 Itomic Commercial Eco-cute

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Example Golf Club③

Application ： Bathrooms / Kitchens / Washing hands

System: ： Combination

Reason ： Solution for oil price spike which put the

management in a crisis Low stress on environment

Note ： Golf clubs in Japan are usually equipped with large

sized bath tabs since players enjoy it after hitting the

green. To meet varying volume of HW, a

combination of storage-type Eco-cute and boilers

with instantaneous power has been adopted and

proven high efficiency.

Cost Reduction

4 Itomic Commercial Eco-cute

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Itomic Commercial Eco-cute

4 Itomic Commercial Eco-cute

【 Characteristics of Itomic Eco-cute 】①Large volume of HW with CO2(negligible impact on global warming)

②Down sizing(all piping at back side ： no side maintenance space

needed)

③COP:4.0

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Variety in Systems of Itomic Eco-cute

4 Itomic Commercial Eco-cute

① Circulation System

② Combination System

Return pipe is connected to storage tank for warming.

Combine the unit with a boiler to make up the supply shortage.

③ Combination w/ a unit for well/natural water This unit prolongs the life of the system unit.

④ Mixture with other water heaters

⑤ Rotation operation

Optimized combination with small water heaters.

Even out the HW for several units installation.

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