Reply by clin

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Posted on My 1st Bill Since New AC Installed - WAS:100% Positive Flow AC in the Shop

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1121 posts in 1873 days

#1 posted 06-22-2017 05:21 AM

Why not get a system with a washable/reusable filter? You d save tons of money in operation, and you could buy two filters. You use one until it s dirty, then put the other in and clean the first one. Some of them even go in the dishwasher.

Either that or a mini split system and a ceiling mounted air cleaner.

- jonah

This is exactly what I have and it works well. As is commonly done, my room filter hangs from the ceiling, and therefore doesn’t consume any floor space. Changing filters does require using a ladder. However, I find it works pretty well to just use the shop vac to vacuum the dust off the filter. That can be done standing on the floor.

Not saying you’d never have to climb a ladder or step stool to replace the filter, but it wouldn’t have to be all that often.

BTW, insulation is R10 roof, R7.5 walls, using Solar Guard on my metal building. IMO, spending more on upgrading insulation would be too tedious since the shop is already “full” of stuff.

- HorizontalMike

Insulation really should always be the first step. You have about 1/3 what you should have. Is your ceiling really that inaccessible that you can’t upgrade the insulation?

Is your humidity low enough for an evaporative cooler? If so, that would fit your original requirement. These are specifically designed to continuously draw in outside air and exhaust the structure.

But, I’m guessing you’d already be doing this if it were an option in your area. And you already mentioned dehumidifying, so again, I’m guess you really aren’t that dry.

Bottom line, if people use evaporative (swamp) coolers in your area, that’s a perfect option for what you want. Very cheap to install, can move a huge amount of air, much cheaper than refrigerated AC to run. They just don’t work well or at all if the humidity isn’t low.

-- Clin

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