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Another New A2W HP
JakeCK
Member Posts: 1,461
But are any of them ever going to make it to the US market? 🤔
https://www.pv-magazine.com/2023/11/29/lg-launches-residential-air-to-water-propane-heat-pump/
https://www.pv-magazine.com/2023/11/29/lg-launches-residential-air-to-water-propane-heat-pump/
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Comments
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There may be some limitations as to bringing LP refrigerant systems in to the U.S. ?
Sometimes they get into Canada easier, you may already see LP units in Canada if you look deep.Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
R290 (propane) is already here and is used in food service refrigeration. I know True is using it. No different from other refrigerants except it is obviously flammable but the service procedures are not much different. Evacuating and charging are basically the same. The whole charge needs to be removed and purged with nitrogen to do and refrigerant repairs or brazing could be exiting if the procedures are not followed2
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There are starting to be some interesting 'high-temperature' A2W heat pumps that are at least theoretically available in the US:
https://www.mbtek.com/collections/air-to-water/products/apollo-heat-pump-max-heat-36k-btu-3-ton-air-to-water-evi-inverter-dc-technology
and:
https://www.arcticheatpumps.com/high-temperature-heat-pump.html
These really are designed to be drop-in replacements for boiler retrofits - the MBTek unit advertises a COP of 2.0 with 167F SWT and an outdoor temp of 10.4F.0 -
The only difference is those Systems are limited to 6 or 7 Oz total charge of R-290. 1 workaround is having 2 complete and independent Systems in the same cabinet.EBEBRATT-Ed said:R290 (propane) is already here and is used in food service refrigeration. I know True is using it. No different from other refrigerants except it is obviously flammable but the service procedures are not much different. Evacuating and charging are basically the same. The whole charge needs to be removed and purged with nitrogen to do and refrigerant repairs or brazing could be exiting if the procedures are not followed
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