Hello there everyone! I am an avid DIYer, and while I am able to do most things, there is something that is baffling me that I cannot seem to figure out.
I have been looking at installing a central air unit ontop of my furnace, that was replaced brand new about 7 years ago (just before I moved in). My furnace is a Goodman Model #GMH950904CXAD it says it supports up to 90k btu. When looking at coils for it, it says it should be able to accommodate 2 to 5 tons.
I have looked at at least 6 different AC units, and so far I have not found any that fit ontop of my furnace. All of the ones within specification are too tall and too wide. Now, normally I would install a transition at the top of the furnace to transition to the evaporator, but I already don't have enough vertical room to where my duct work starts at to allow that. I've attached a couple of pictures to show you what I mean.
In the top picture, the top of the diffuser is at the top of the picture. To the right of that is a horizontal vent that connects to the main heat venting of the house. The problem, is that there is no additional room above it as the vent connects to the side of the diffuser, no the top of it.
Every coil I have come across, in measuring, has been too tall (as well as mostly too wide). That is, the top of the coil is beyond where the horizontal venting comes into the furnace at, leaving me no room to be able to install a transition to cover the difference in width, and surely not enough room to connect an elbow at the top of the evaporator to connect into the horizontal duct work.
Does anybody have any suggestions aside from tearing up all the ducting on how I can fix this?
I have been looking at installing a central air unit ontop of my furnace, that was replaced brand new about 7 years ago (just before I moved in). My furnace is a Goodman Model #GMH950904CXAD it says it supports up to 90k btu. When looking at coils for it, it says it should be able to accommodate 2 to 5 tons.
I have looked at at least 6 different AC units, and so far I have not found any that fit ontop of my furnace. All of the ones within specification are too tall and too wide. Now, normally I would install a transition at the top of the furnace to transition to the evaporator, but I already don't have enough vertical room to where my duct work starts at to allow that. I've attached a couple of pictures to show you what I mean.
In the top picture, the top of the diffuser is at the top of the picture. To the right of that is a horizontal vent that connects to the main heat venting of the house. The problem, is that there is no additional room above it as the vent connects to the side of the diffuser, no the top of it.
Every coil I have come across, in measuring, has been too tall (as well as mostly too wide). That is, the top of the coil is beyond where the horizontal venting comes into the furnace at, leaving me no room to be able to install a transition to cover the difference in width, and surely not enough room to connect an elbow at the top of the evaporator to connect into the horizontal duct work.
Does anybody have any suggestions aside from tearing up all the ducting on how I can fix this?