I have a dog named mouse that enjoys HVAC units. When my dog was a kitten, my pal and I obtained a new window air conditioning system for our living room. At first the loud sounds of the air conditioning system scared the kitten, however eventually she came to cherish the cool breeze that came out of the window air conditioning system. A few years later my pal and I got a combined heating plus A/C system installed in our house. When the furnace would turn on, it would blow moderate air through the air vents on the floor. When my pal and I first got the boiler installed, Mouse didn’t know how to react. One afternoon she was sleeping on one of the floor air vents when the boiler kicked on plus started blowing moderate air through the air vents. Mouse jumped up plus ran away because she wasn’t expecting something to come from the air vent. This happened several times before she got used to the boiler. Now that my pal and I have had our combined heating plus A/C system system for a few years, Mouse will curl up on the heating vent plus take a nap in the moderate air. Last week my pal and I obtained a small portable space furnace to go under our desk in our room. Mouse has come to cherish the space furnace more than the heating vents. She will spend hours just fantastic in front of the space heater. While me plus my family do cherish all of our weird kinds of HVAC units, It is pretty clear that our dog enjoys them more than my pal and I do.