I would like to check basic thermal leaks of the house heating system (and perhaps the house thermal insulation as well). As the professional services or equipment (thermocamera) are very expensive, I would like to check if there is perhaps some DIY solution, e.g. using a digital camera, using IR webcam, using a thermometer or any other cheap or commonly used equipment.
If the tools are not something I already have at home, I am willing to pay at most USD 200 (EUR 150) for the required tools.
And as a bonus:
- what is the difference which makes the thermocamera so expensive (USD 6000 and more) compared to a webcam or a normal digital camera? Does it have some special properties, like broad input spectrum, or what?