Like the test of the 34 watts dew heater, I wait several nights before proceeding with my first test with the 52 watts version. Once attaching the LX200 to its pier I turned on the dew heater and during half an hour it heat the corrector plate. During this phase the telescope was covered by its cap to produce a maximum of heating. After setting the telescope I started the stargazing session. Several times during the night I inspected the corrector plate and enjoyed to have no dew on it. The dew heater worked so fine that time that the half of the OTA did not have no dew neither, (see the rights pictures).

To conclude, in my opinion, this solution is much better than the dew shield because of lightweight and works with all the direction of the OTA unlike the dew shield. Moreover, there is no risk to lose your alignment when you focus on your telescope with an Hartmann Mask. To finish, I read in Yahoo! Group some notes that a dew heater generates thermal gradients in the optics and nearby air. At that time I had not enough time to observe and saw anything. But this technique is used both for the conduction and the convection.