
Your Inbox Demonstration.
You've completed your test and submitted your results to the Dr. Radiator website. Hopefully, you now have access to your dashboard report, which outlines the key findings from your test. Your report includes a visual score for each tested element, along with a written explanation of what these scores mean. Additionally, it offers recommendations on how to make progress based on your results.
If your dashboard report indicates that your home heating system is under stress, it can be frustrating and concerning, especially if you don’t fully understand what is happening within the system.
That’s why we developed the inbox demonstration to help you visualise the issue and regain control.
Simply follow the instructions on the cards included in your home heating test kit. Here’s a summary of how the demonstration works.

No it's not magic. It's just reality.
Your Home Heating Test Kit includes:
- Tube A, which will contain water from your home heating system.
- Tube B, which will hold regular tap water.
- Tube C, which is designated for the vial of inhibitor, represents a well-maintained home heating system.
Your kit also includes metal bearings to place in each tube, symbolising the various metals found in your home heating system, including copper, steel, iron, aluminium, and brass.
These metals can lead to the buildup of contaminants, which eventually turn into sludge that may damage your home heating system.
By placing the tubes on the windowsill, you allow sunlight to warm and cool them. This simulates the heating cycles of your home heating system as it turns on and off over time.
After a period of time on the windowsill, you will notice that the test tubes from your demonstration have begun to change colour at different rates.

Tube A.
Test tube A contains the actual water from your home heating system.
If your dashboard report indicates that your system is currently in good health, you will likely observe little to no change in test tube A. This is consistent with the results from your dashboard report, and we recommend that no further action is necessary at this time. We also suggest purchasing another home heating kit so you can perform the test again in 12 months. Annual checks of your system are very important for maintaining its efficiency.
If your dashboard report shows that your system is struggling, the colour of the water has likely darkened. This darkening occurs when the water in your home heating system reacts with the mixed metal bearings and is exposed to heat from the sun.
This reaction happens when your system's balance is incorrect, so it's essential to take action promptly to prevent any damage.
If the water in test tube A appeared dark from the beginning, your short report would have indicated a need for urgent repairs. Depending on the initial darkness of the water, it may not darken further, or it could start to turn into sludge, which means your system requires immediate attention.

Tube B.
Test tube B contains simple tap water and should be significantly darker than the liquid in test tube A.
The closer the color of test tube A is to that of test tube B, the more serious the poor health of your home heating system indicates.
