Propane Heat Pump - This is a new one to me

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peakbagger

Minister of Fire
Jul 11, 2008
8,152
Northern NH

Always a different way to "skin the proverbial cat"
 
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EbS-P

Minister of Fire
Jan 19, 2019
4,472
SE North Carolina
R410a phase out means the switch to flammable refrigerants. Neat thing about this unit was is how you can combine up to four units. I have seen a lot going this route.

Edit these are big commercial units. Starting at roughly 15 tons. Can we just all agree and ditch btus and tons for thermal capacity already!!!
 

spuldup

Member
Nov 1, 2022
174
16137
I am in the HVAC industry. The industry is switching to lower GWP refrigerants. Most, if not all, will be slightly flammable. This will be mandatory by next year.
 

gthomas785

Minister of Fire
Feb 8, 2020
864
Central MA
When I saw the headline at first I thought it was a heat pump that runs on propane, like the old gas refrigerators.
But really using R-290 as a refrigerant is such a no-brainer, for most of the past decade I wished people would put as much energy into safety engineering as they did complaining about the risks. Glad to see some progress being made.
 

ABMax24

Minister of Fire
Sep 18, 2019
1,891
Grande Prairie, Alberta, Canada
We've got a deep freeze that uses cyclopentane as the refrigerant, no issues.

I've also worked on large refrigeration units for gas plants that use propane as the working medium, last one was a 2,500hp electric drive compressor. Usually takes a couple truck loads of propane to fill those systems.