I'm just starting out and am looking for an inexpensive alternative to a professional carpet extractor like the Mytee. Is there any difference between the LGM Proheat and the LGm "Autocare" model? The Autocare's description claims to heat the water up 25degC, while the LGM Proheat (green model) only claims to raise the temperature (does not say by how much). Are they the same thing with the exception of the extra attachments with the Autocare?