Mini Split filter box

[minerfarmer]

Thinking about making a filter box for the indoor unit of my mini split. I would like to use four 16X20 Merv 8 pleated filters. Two on top and two in front on an angle. Do you think this will restrict the intake too much? Has anybody done something like this?

 

[rlitman]

Do you know the tons and CFM of your unit?

Though I will say that most wall mount mini splits are not made for ducted operation.

 

[tab2]

Tough to see from far away what the model is, but does it not have its own built in filter? Do you feel that is not enough?

 

[minerfarmer]

20X36 shop with woodworking tools. Would not call myself a woodworker but I can make a lot of dust. The filters on the unit are not enough to keep fine dust out of the unit. Sorry picture did not turn out very good. It is a Mitsubitzi MSZGE18NA. I run dust collection on machines that I can, and have a delta air cleaner mounted to the ceiling.

 

[Git]

I have that same unit in my 3 stall garage

I also have dust collection on my tools and the JET air cleaner on the ceiling. I really don't notice much of a problem with dust. I routinely pull out the blue plastic filters and every now and then pop off the plastic cover and use compressed air to blow out the coil. I am not sure if it would be worth the time and effort to build something else versus just keeping up with the routine maintenance

 

[theoldwizard1]

You only want a filter on the inlet side.

 

[minerfarmer]

I would not block the outlet at all. 4 filters on the intake would be overkill but I want to do everything possible to not restrict the intake. I thought if it is possible to do this someone on this wonderfully informative site had already done it.

 

[minerfarmer]

The filters in my unit don't really seem much like filters. More like plastic screens. They can be washed and used over and over. When I cleaned the unit yesterday there was way to much dust on the coils.

 

[minerfarmer]

Unless someone tells me it won't work I am going to build a filter box.

 

[Jakkle5]

Unless someone tells me it won't work I am going to build a filter box.

haha so....build it?

 

[DHCrocks]

update? I just got my split installed and wanted to add some additional filtration also.