Having installation of a brand new and very up to date heating and air conditioning system is not something someone should take lightly in the least. When choosing and installing a brand new and very up to date heating and air conditioning system, there are a lot of factors that have to be considered. One being is the heating and air conditioning system powerful enough to heat your entire home? It all depends on the size of your home and the power that the heating and air conditioning system 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 air conditioning systems like they have in big corporate office buildings and big malls as well as department stores. Big industrial sized central heating and air conditioning systems cost a ton to even get, but if you are rich, you can afford it and it would not matter anyhow. Me personally, I am your average joe, and a general top of the line and very up to date central heating and air conditioning system is what I got installed into my home. I had to take out a small loan from my local bank, but it did not matter to me, because I needed and wanted the very best in current heating and cooling technology for my home. I made the mistake once a very long time ago in getting a cheap central heating and cooling system, and it cost me tons in heating as well as air conditioning repair! Never again I said!