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"Easy Fuel Economy" is a smartphone app that allows you to calculate your home's heating and cooling costs with simple operations.

For those who are considering building a new house or expanding or renovating it, we have prepared content on changing the type and thickness of insulation materials, sashes, etc., with the aim of considering energy-saving buildings before actually building a house, thereby reducing heating and cooling costs. Simulate how much you can save. (It may differ from the actual building)

"Easy Fuel Economy" has more than 100 input items such as insulation materials, insulation sashes, ventilation systems, air conditioning equipment, etc. for core users such as construction professionals and building material manufacturers, and can create original insulation specifications by combining them. There is a function to save.

It also has a function that allows the user to create a QR code with the calculation results and share the calculated data with other users.


[What you can do with “Easy Fuel Economy”]

●Main features

- Equipped with "insulation specifications" as standard, which allows even beginners to calculate utility costs by simply selecting insulation grade 4, 5, 6, or 7.

・You can edit the "insulation specifications" and use "detailed calculations" to calculate heating and cooling costs by changing the UA value and Q value, which represent housing performance.

- It is possible to calculate the heat transfer coefficient using insulation materials (ceilings, walls, floors), and specifications can be saved.

- By changing the type of sash and opening ratio, you can check the performance of the sash using graphs of solar gain and heat loss and utility costs.

・Cost comparison for 35 years (displays cost vs. cost cross points in comparison graph)

・Surface temperature calculation (ceiling, wall, floor, window)

・Calculation of dew point temperature (temperature at which surface condensation occurs)

・Indoor temperature without heating (severely cold season)

・Calculation of maximum heating load (uses as a guide for selecting equipment such as air conditioners and FF stoves)

・Create calculation results using QR code, share data by reading


[Application of “Easy Fuel Economy”]

・When constructing a new building or expanding or renovating, we will work with architects, carpenters, and house builders to cover heating and cooling costs.

Used to discuss ways to reduce (Users should do everything at their own risk)

- Change the UA value and consider cost versus cost.

- Change the C value and confirm that the heating and cooling costs change depending on the size of the gap.

- Consider cost versus cost by changing the type and thickness of insulation.

- Change the type of sash and look for one with better fuel efficiency.

- Change the ventilation system and consider the cost versus cost of heat exchange ventilation.

・Reflect the simple calculations made using "Easy Fuel Economy" in the design and reconsider using the design software.

(This program is a simple calculation, so be sure to consult a designer.)

・Publish as a PR displaying performance and fuel efficiency at open houses, etc.

- Through Easy Fuel Efficiency,'' we will promote matching between builders who can build high-performance homes'' and ``users who want to build.'' (It is important to check whether the airtightness of each building is measured, or whether the builder is able to do so. If the airtightness of the house cannot be measured, there will be a large difference from the calculated results.)


Be sure to use this app to calculate your utility bills, loans to be paid at the same time, and the thermal environment of your home from the planning stage so that you don't have any regrets after building your home.