Can one unit really keep the whole floor cold or are you just telling me what I want to hear?
The question hung in the air like a heavy curtain and Renata waited for the man on the other end of the chat to say something that made sense. She had four rooms that all felt like different planets and the bedroom was a cave and the kitchen was a desert and the sunroom was a greenhouse and the office was a drafty hallway.
She wanted to know if one big box on the outside wall could handle the load of her actual life and her actual house. The reply that came back was long and it was shiny and it was filled with words that sounded like they belonged in a science book.
“Multi-zone systems provide an adaptable framework for residential cooling and they leverage advanced inverter technology to modulate the flow of refrigerant to multiple indoor units based on demand.”
Renata read it and she felt like she was asking for a glass of water and getting a lecture on the molecular structure of ice. It was a general answer for a specific fear and it was a way to talk about everything without talking about her four rooms.
She felt a small knot of anger in her chest and she wondered if the man was even reading her words or if he was just clicking a button on a screen.
I am writing this while I think about the times I have done the same thing because I have been the one giving the general answer. I have pretended to be asleep when the questions got too hard and I have used big words to hide the fact that I did not know the truth.
When I worked as a coach for people in recovery I used to think that the rules were the answer and I would tell them that the process is the path. I was wrong and I see now that I was just hiding from the messy reality of their lives.
The sales rep was doing the same thing to Renata and he was giving her the category of multi-zone cooling while her house was a specific case that needed a real look.
The Guts of the Machine
The problem with a general answer is that it feels like help and it sounds like truth and it carries the weight of authority. But when you get into the guts of the machine you see that the general answer is often a lie by omission.
A multi-zone unit has a limit and that limit is the amount of heat it can move in an hour and that is measured in BTUs. If the box outside can move twenty-four thousand BTUs then that is all it can do and it does not matter how many indoor heads you hook up to it.
The specific truth: Turning on all four zones forces a 24k unit to attempt 36k of work, leading to lukewarm air and soaring bills.
If you have four rooms and each room needs nine thousand BTUs then you are asking the machine to do thirty-six thousand BTUs of work. The general answer says it is a four-zone unit and it has four ports on the side so it can handle four rooms.
But the specific truth is that if you turn them all on at once the machine will fail to keep up and the air will be lukewarm and your power bill will go through the roof. The machine will spin its heart out and it will never reach the goal because it is being asked to give more than it has.
The sales rep does not want to tell you this because it might make you buy two smaller units or it might make you go to a different store. He wants to stay in the world of categories where every four-zone unit is a magic box that solves every problem for every person.
I remember I had a garden in the back of my old house and I tried to grow tomatoes in the shadow of a tall fence. I read a book that said tomatoes need six hours of light and I thought that meant any light would do.
The book was giving me a general category of light but it did not know about the shadow of my neighbor’s garage and my tomatoes stayed small and green and hard as rocks. I was looking at the category of the plant and I was not looking at the case of the dirt and the shadows in my own yard.
It is the same with the air in your house and the way the sun hits your windows and the way the wind blows through your attic. A general answer looks nice and it has lots of lines and colors but it will not help you find your way home.
When you look for help you should look for the people who want to know about your windows and your walls and your dogs. People go to MiniSplitsforLess because they want to talk about the case and they want to know if the nineteen feet of copper pipe is enough to reach the back bedroom.
They want to know if the bracket on the wall can hold the weight of the machine or if the vibration will keep them awake at night.
The Peril of “Too Big”
If you buy a unit that is too big it will turn on and it will blast the room with cold air and then it will turn off too soon. This is called short cycling and it is a disaster for your comfort and your wallet.
The air gets cold but the water stays in the air because the machine did not run long enough to pull the moisture out. You end up in a room that feels like a cold swamp and your skin feels sticky and the air feels heavy.
Rapid cold air injection
Machine quits too early
Humidity trapped inside
A general answer says that more power is always better but the specific truth is that the right power is the only thing that works. I used to think that being right was the most important thing but I learned that being useful is much better.
I once told a sister of mine that she should just buy the biggest furnace she could find and I was so sure of myself. I was wrong and her house became a series of hot and cold spots and she spent the next wearing a sweater in the kitchen. I was giving her a category of heat and I was not looking at the case of her old ductwork and her high ceilings.
Renata finally stopped typing and she closed her laptop and she sat in the dark for a while. She realized that the man in the chat bubble was not going to help her because he was not talking to her. He was talking to a ghost of a customer in a ghost of a house and he was just reading lines from a script.
The real work of cooling a house starts with a measuring tape and a look at the circuit breaker and a talk about how you live. If you have a dog like Barnaby who is a sixty pound golden retriever and he spends all day panting on the floor then he is a heater on four legs.
The Barnaby Factor
An advisor is a person who hears about the bread and hears about the dog and tells you to add another thousand BTUs to the kitchen.
A general answer does not account for Barnaby and it does not account for the way you leave the oven on for to bake bread. They are not trying to sell you a box and they are trying to sell you a result and those are two very different things.
The result is a house where you can breathe and a house where you can sleep and a house where the air feels light and dry.
The Cost of a Mistake
The cost of a mistake in this world is high and you cannot easily send back a two hundred pound machine once it is bolted to your wall. You cannot just un-ring the bell if you find out the pipes are too short or the power is too weak.
The general answer is a trap that leads to a thousand dollars of regret and a summer of sweat. We should demand the specific case every time we open our wallets and we should walk away from anyone who only gives us the category.
I have learned to listen for the silence after the question and to see if the person is thinking about my walls or their own commission. If they start talking about the history of the compressor or the beauty of the remote control then I know they are pretending to be asleep.