I'm planning a garage addition onto my house and want to know what the best way to handle existing A/C condenser units that are there is.
The current setup is as follows (with the
C's being the condenser units):
| | |-----------------+ | | | C | | | | C | House| | | | | | | | | Proposed Garage | |-----------------+ | -----+
Obviously the condensers cannot be within the proposed garage so, I've come up with two ideas on how to handle them:
- Move the condenser units to the back of the new garage:
| | C C |-----------------+ | | | | | | | | House| | | | | | | | | Proposed Garage | |-----------------+ | -----+
- Build the Garage around the units:
| | | - - +-----------+ | | | | C | | | | | | C | | House| | | |-----+ | | | | | | Proposed Garage | |-----------------+ | -----+
I'm currently kinda leaning towards option 2 as I know moving those condenser units will be expensive (and because moving them towards the back of the house would put them right under windows that may make those rooms louder). I'm imagining having the roof continue over the section that contains the units but attaching ducting to the output of the units to direct the hot air either up through the roof or out the back wall, whichever the HOA will allow and then having an air intake louver on the back wall to allow ambient temperature air to come into the area.
Other considerations I've thought of are about the clearances around the units and future maintenance so I'd leave a considerable gap on the right side there to allow people/new units to get in to both units.
My main questions for option 2 are:
- Does an exhaust duct like I'm talking about even exist? I found some 18" ducting which would be big enough, but when I search for ducting specifically for outdoor units I only find stuff for window units.
- Would having them in that enclosed space reduce their lifespan and/or make them less efficient even though the hot air is being exhausted far away from the air intake (I'm thinking because there's slightly more resistance to the airflow through it now due to the duct and louvers).
My main questions for option 1 are:
- Has anyone actually moved existing A/C units before and how expensive would it be to do so here?
- If I were to move them, what would be the order of operations for that since the concrete pad this is all going on needs to be leveled and the wall they would connect to in option 1 wouldn't be build yet?