Warum nutzt keiner dieses super günstige Fenster Wärme UPGRADE? Nachgemessen!

Summary

In this innovative DIY experiment, the video explores the effectiveness of improving window insulation using an affordable solution: a PVC tablecloth versus a Tesa film. The presenter, assisted by Physics Professor Hundhausen, delves into the science behind window types and how these materials can significantly reduce heat loss, showcasing a practical demonstration with infrared cameras to compare the thermal properties of PVC and Polyethylene. With detailed measurements and cost analysis, viewers are guided on how to assess and enhance their window insulation economically. This exploration reveals both the physical properties and potential savings, making it a valuable resource for homeowners seeking cost-effective ways to boost energy efficiency.

Takeaways

• 😀 Andreas is testing inexpensive window insulation methods using PVC tablecloths and TESA polyethylene foil.
• 😊 He uses an infrared camera to measure the temperature difference with and without the foils.
• 🔍 The PVC tablecloth absorbs and re-radiates infrared radiation, reducing heat loss by ~25%.
• 🔍 The TESA foil transmits most radiation, but still reduces heat loss by ~13% due to the air gap.
• 📏 Andreas calculates the potential energy savings in Euros with help from a physics professor.
• 💡 The PVC foil insulates better, but looks terrible when applied.
• 💡 The TESA foil looks decent and is easy to install and remove.
• 💰 For Andreas' windows, the upgrade costs ~100€ for PVC foil or only 36€ for TESA foil.
• 😕 The kids would likely tear off the window foils, so Andreas plans to replace the glass instead.
• 📺 Andreas recommends checking out the physics professor's channel for more detailed explanations.

Q & A

What materials are used for the window insulation foils tested in the video?

Two materials were tested: a PVC tablecloth and polyethylene (PE) tape from Tesa.

How does infrared absorption of the materials help insulate windows?

Materials that absorb infrared radiation reflect some of it back into the room, reducing heat loss through the window.

What temperature reduction did the PVC foil and PE tape achieve?

The PVC foil reduced the temperature by about 10°C and the PE tape by about 2-3°C.

How much energy savings did each window insulation method provide?

The PVC foil saved around 25% energy and the PE tape around 13% compared to an untreated glass window.

How can you tell what kind of window glazing you have installed?

Hold a candle up to the window at night - the number and size of reflections indicate whether it is double or triple glazing, and a blue tint indicates thermal insulation coating.

What was the cost for insulating the windows with each method?

For the room shown, the PVC foil cost €93 and the PE tape cost €36 for all windows.

What are the advantages and disadvantages of each insulation method?

The PVC foil insulates better but looks bad when installed. The PE tape has less insulation but stretches better for a neat appearance.

How much money can be saved per year by using these insulation foils?

For the example windows shown, €40/year could be saved with the PVC foil and €20/year with the PE tape.

Why should the foil not be glued directly to the window glass?

There needs to be an air gap between the foil and glass for the insulation effect to work.

What other options are there for improving window insulation?

Replacing the glass with modern double or triple glazed windows with thermal insulation coating provides the best insulation.