Wall u-value measurement

Ruuvi products 🇬🇧 RuuviTag & RuuviTag Pro sensors
1

Hello everyone,

I want to measure the heat capacity “U” (thermal performance) of a wall in order to perform a heat loss calculation.

My plan is to place three RuuviTag Pro sensors as follows:

  1. One mounted on the interior wall surface.
  2. One measuring the ambient indoor air temperature.
  3. One mounted on the exterior wall surface.

I intend to use thermal paste between the wall surfaces and the sensors to ensure better contact and more accurate surface temperature readings. I will then extract the measurement data directly from the .xml files generated by each sensor for analysis.

Has anyone attempted a similar setup? I would love to hear your thoughts, feedback, or impressions on how reliable this method is.

Thanks in advance!

2

Hi @GeorgiosT ,

My initial thought is that standard RuuviTag sensors are not really compatible with this experiment, since they’re designed to measure air temperature, not surface.

There is a model with external temperature sensor, which might potentially fit this task better. https://ruuvi.com/products/ruuvitag-external-temperature-sensor/