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I sometimes wonder if a bunch of Heating plus A/C professionals are going to come after me, however nothing like that has happened. I really ended up writing a book about DIY Heating plus A/C idea service. I tell people that anybody who can change a lightbulb can toil on their Heating plus A/C idea separate from too much hassle, of course, I advocate that people go with the professionals for major problems like refrigerant leaks, idea part substitutements, plus things like that, however the other stuff is a breeze. The main thing you need to think when maintaining your Heating plus A/C is to substitute the air filter properly. A vast majority of idea service calls are because of a terrible air filter that the homeowner failed to have substituted or cleaned. I personally like to use pleated air filters with a wonderful MERV rating, however HEPA filters aren’t so terrible either. If you do ever plan on using HEPA filters, be sure you check to see that your Heating plus A/C idea is powerful enough to handle these air filters. They have such a dense weave, plus it’s no wonder, they pull 99.9% of contaminants from the air, still, if you have a idea with a weaker idea fan, you might end up causing your Heating plus A/C to overheat or the idea fan to break down. If you do have a powerful Heating plus A/C idea though, go for the HEPA air filters if you can afford them! They will improve your health importantly, so it’s a wonderful investment. I talk about all kinds of stuff like this in my book, so I encourage you to check it out if you want to think some excellent service tips plus even energy saving tips.