Air Excellence STL is serious about offering our customers the best in custom HVAC solutions. We recommend top of the line products from leading manufacturers so our customers experience reliable and efficient air conditioning, heating and air filtration every day. You can rest easy knowing that Air Excellence is a St. Louis air conditioning and heating contractor you can trust for the best.
An air conditioner cools your home by compressing refrigerant, and sending this chilled refrigerant indoors to the evaporator coil (or fan coil). Though air conditioners have their own efficiency ratings, the indoor fan also affects overall air conditioning efficiency.
A heat pump is able to provide cooling like an air conditioner, but also heating as well. In cooler seasons, a heat pump absorbs heat from the outside air to heat the same refrigerant used in the Summer (even though the air is cold, there is still heat energy). Heat pumps are not ideal for frigid temperatures, which a gas furnace is more suited for.
A gas furnace has been the most common heating source for typical, residential split system setups. Naturgal gas, propane and even oil has been used as fuel sources. We offer gas furnaces with very high efficiency ratings to make gas heating as affordable as possible.
When you don't have much extra space in your home, a packaged system can be the ticket. Packaged system house anything from a furnace, air conditioner and heat pump, all in one big, you guessed it, package. They are typically not as efficient (for residential) as a normal split system when comparing top models.
An evaporator coil is the thing that houses the indoor copper tubing that an air conditioner and/or heat pump sends refrigerant to. Air is pulled from your home via the return air duct, and then forced through the evaporator coil to cool in the summer, or heat in the winter (if using a heat pump).
Modern thermostats are much more than a switch to control the temperature in your home. They now offer advanced features such as switching between heating sources depending on fuel cost, remote dial in access, 7-day programming and more.
When using a traditional furnace, evaporator coil and air conditioner setup, the furnace fan is used in the cooling season to force air through the evaporator coil and into the home. A fan coil is basically the combination of an evaporator coil and furnace fan, and is used in the absence of a furnace.