How to calculate indoor temperature?

In summary, the conversation is discussing the calculation of the effect of insulation and weather conditions on a timber frame cottage. The weather conditions vary between 0 and 30 Celsius and the cottage is 25 m2 with a height of 2.2 m. For question 1, the indoor temperature range without heat will be similar to the outside temperature but slightly cooler during the day and warmer at night. For question 2, an R-2.0 insulation material may not be sufficient and a wood stove may be needed. A wood stove calculator is recommended for determining the amount of wood needed for optimal temperature during the winter. However, the accuracy of the results may vary depending on the air infiltration of the cottage.
  • #1
Akira
8
0
Hello, I am trying to calculate the effect of insulation and weather conditions on a cottage. The cottage is made from a timber frame while the panels are of 4mm plywood. The weather conditions vary throughout the year between 0 and 30 Celsius. Cottage is around 25 m2 with 2.2 m height, consider as single room.

Question 1: What is the indoor temperature range if the insulation material used has an R-2.0 ?
Question 2: If we are to install a timber furnace, how much timber do we need to maintain the room at optimal conditions during the winter ? How long will it take to reach the optimal temperature ? (assume optimal is 25 Celsius)
 
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  • #2
For question 1, without providing heat to it, the temperature will lag a bit, but ultimately roughly equal outside temperature; a little cooler during the day unless there is bright sun, a little wamer at night.

For #2: do you know what an "R-value" is? It is exactly what you need to use to find a heat flow rate given the delta-T you specified. Give a try to using it and we'll help you along.
 
  • #3
R-2.0 seems very low for an insulating material. How thick would it be? I could easily run a quick 2D thermal model for you.
 
  • #4
We don't know how leaky his doors, windows and walls are to air infiltration, so results may vary.
Walking around in bare feet might be a tad uncomfortable.

For a wood stove, check out this calculator I found.
http://www.hearth.com/econtent/index.php/articles/burn_time_calculator [Broken]
Hopefully the author has done his stuff correctly, and the calculator makes it easy to calculate the calculation of cords of wood needed for a stay at the cottage.:rolleyes:
 
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1. What factors affect indoor temperature?

Indoor temperature can be affected by a variety of factors such as outdoor temperature, humidity levels, air circulation, insulation, and the size and layout of the room or building.

2. How do I calculate indoor temperature without a thermometer?

To calculate indoor temperature without a thermometer, you can use the following formula: Temperature (in degrees Fahrenheit) = (current outdoor temperature in degrees Fahrenheit x 2) + (current indoor temperature in degrees Fahrenheit x 3). This is just an estimate and may not be completely accurate.

3. What is the ideal indoor temperature for a home?

The ideal indoor temperature for a home is typically between 68-72 degrees Fahrenheit. However, this can vary depending on personal preference and factors such as climate and insulation.

4. How do I calculate indoor temperature in different units?

To convert from degrees Fahrenheit to degrees Celsius, you can use the formula: Temperature (in degrees Celsius) = (Temperature in degrees Fahrenheit - 32) x 5/9. To convert from degrees Celsius to degrees Fahrenheit, you can use the formula: Temperature (in degrees Fahrenheit) = (Temperature in degrees Celsius x 9/5) + 32.

5. Why is it important to calculate indoor temperature?

Calculating indoor temperature is important for maintaining a comfortable and healthy living environment. Extreme temperatures can lead to health issues and can also affect the efficiency of heating and cooling systems, leading to higher energy costs.

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