134a vs r290
Anyone remove 134a and put in r290 into anything. I have a dehumidifier that might work for a water heater. Just wondering how the performance would compare.
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The condensing temperature limit would to low enough to make it useless as a water heater. Start with a R410a compressor or use R152a (commonly found in duster cans) or R600a.
I have run R410a in a R134a compressor that was being used as the second stage of a cascade. (First stage ran on R152a.) It would pull down to -50C, then the oil starts freezing. I'll have to change the oil to a low temp type for it to work as intended. |
Yea, I just want to replicate the ones made here like Randons
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Looks like your easiest option is to use R152a. It would be labeled "difluoroethane" on the can.
https://www.youtube.com/watch?v=dl4qOySVru0 |
I suppose I could put the 134a unit on craigslist and look for a r22 or 410a dehumidifier. Most of the newer ones I see are 134a now.
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it's that time of year
Quote:
Room Air Conditioner Haier air conditioner I'm a fan of the 5000 btu units due to their extreme affordability. Most all use r-22 and have extra space in the case. The larger ones are more expensive and tend to be crowded inside. If you need more capacity, just parallel the units. You can even leave them sealed up and submerge a hx in water if you want to. There's lots of slack in the plumbing. |
It would be difficult to enclose the condenser in something that can withstand city water pressure.
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