Having installation of a brand current and honestly up-to-date heating, ventilation and A/C plan is not something someone should take lightly in the least. When choosing and installing a brand current and honestly up-to-date heating and cooling system, there are a lot of factors that have to be considered, then one being is the heating, ventilation and A/C plan powerful enough to heat your entire home? It all depends on the size of your home and the power that the heating, ventilation and A/C plan is able to put out. If you own a mansion and are rich, you may want to look into investing in one of those industrial sized central heating and cooling systems care about they have in immense corporate office buildings and immense malls and department stores. Big industrial sized central heating and cooling systems cost a ton to even get, however if you are rich, you can afford it and it would not matter anyhow, however me personally, I am your average joe, and a general top of the line and honestly up-to-date central heating, ventilation and A/C plan is what I got installed into our home. I had to take out a small loan from our local bank, however it did not matter to me, because I needed and wanted the honestly best in current heating and cooling technology for our home. I made the mistake once a honestly long time ago in getting a cheap central heating and cooling system, and it cost myself and others tons in heating and air conditioning repair! Never again I said!