sandman420 said:

1TD2 is only rated for maximum 360 cfm at 0.8" static pressure. You need at least 400 cfm @ 1.2" static pressure.

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AyePlus said:

Fungi perfecti sells the 1tdu2 with their 2x2 and 2x3 kits. I think its a bit overpowered(perfect for a 24x26) but with a nice thick prefilter it will work. Its hard to find a fan thats perfect for that size IME. The one I built uses a centrifugal instead of a squirrel cage which made the build slightly more complicated.

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Yeah, well, they're also super over priced My budget is pretty close to $150~ give or take a little. I thought I had it all set and figured at this point.

Ok, went back to the drawing board, rewatched some videos, reread some shit... Still kind of confused but trying.

The HVAC places that I've contacted all state that they do not save used parts, or that they don't sell parts to customers. That's 7 places, same answer. This is the problem living in a larger city, no one is willing to bend any rules. This route will not work.

I'm having a hell of a time finding places that list the fan curve that I'm told I need to be looking for. I'm finding that places tend to list everything out like this:



How do I read this? Is the "CFM @ 0.100-In. SP" the number I'm looking for to be over 400? If it needs to go further, up into "CFM @ 1.000-In. SP" the sites I'm looking at just don't have this information listed.

Any help is greatly appreciated.

I also searched for the blower that I originally linked and used the TC only part and found this:

Amanita virosa said:
If you live in the states zoro tools is the best deal on the blower. That blowet was $160 with free shipping last i checked  Stop obsessing on the perfectly sized blower. The 1tdt2 is mor than enuf blower for any 24x24x6 inch hepa you will  find. You want it oversized. You can easily decrease the flow.....but if your  blower is sized perfectly to a new hepa, you will have no way of increasing  it as the filter clogs and creates more resistance. This is why we oversize the blowers. I am running a 1tdt2 right now thru a 36x36x12 and it's plenty of blower. That is an excellent choice. Just be sure to buy a quality hepa and ur golden.

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Quote:

Amanita virosa said:

Quote:

ryan said:
The 1TDT2 is probably not powerful enough for a 24x24. You need a min of 400 cfm @ ~0.8-1" SP, and if Stamets is now recommending 150 cfm flow, you need 600 cfm min at this SP, and probably more like 700-800.

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Do the math I guess, but I can tell you I am using the 1tdt2 thru a 24 x 24 filter and it is too much blower.  I have to cover up part of the intake.  Its a lot of blower. FP's bigger blowers are universal blowers that will run 120 or 240 and they are high dollar.  Check out zoro they have a nifty table where you punch in the specs you need and the appropriate blowers pop up.  OR call FP and ask them for a list of blowers that are appropriate.  They usually do pretty well answering questions, so long as ur not complaining bad cultures.  Then they ignore you...

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Also, it looks like Bod did all the math of this shit like 2 years ago.

So... these statements are in contradiction. I know that Amanita virosa's posts are 6 years old, but this information doesn't change

Super lost feeling here.

bodhisatta said:

Also if you have a car call some places in the burbs. Like up in skokie or something.

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Looks like I'll have to after this last string of comments






I also found a non-vendor site that shows a similar blower as I linked listed as working for the same type of filter I have



This shit is maddening

El Chupacabra said:

If you can manage $180 for the 1TDT8 they got em on ebay, free shipping. Thats what I used and I'm pretty sure its sufficient for the long haul. I'm not an expert with this shit but i haven't had issues so far. It passed the lighter test and I had to use 2 prefilters and I'm pretty sure it could use a tad more resistance.

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So I see this rated at "CFM @ 0.800-In. SP 500/392". That looks like by the time it hits 1" that it'll have that 400 cfm number with 20% as Bod stated. I saw this before but was kinda confused by the "Permanent Split Capacitor" thing.... as in why do I get two number outputs? I want to make sure that I don't have to be an engineer to make this work since it's got split numbering.

I'm going to make a couple calls in the suburbs just in case I can get out there, but I'm going to cut the drive time off at 1 hour, and I'll be buying this one if that doesn't work out. Thanks again for all this help ya'll, seriously thought I could do the math on my own with this.