Air-To-Water Heat Pumps...

AC_Hacker · 01-26-11, 10:12 AM

It looks like Air-To-Water heat pumps are begining to seep into the American market.

I found one called Daikin Altherma that extracts heat from air and delivers that heat to the home by way of water, suitable for circulating in a radiant floor. Of course, the lower the feed temperature of the water, the higher the overall COP... So if the radiant floor is optimized for low-temperature feed water, COP will be highest.

The smallest unit is 3 Ton. It has a maximum COP of 4.34. This could be a real game changer.

They even have an optional solar assist kit to go with.

Now, if we can just figure out how to hack those nice, cheap little mini-splits to work with water...

Regards,

-AC_Hacker

01-26-11, 10:12 AM	#1
AC_Hacker Supreme EcoRenovator Join Date: Mar 2009 Location: Portland, OR Posts: 4,004 Thanks: 303 Thanked 723 Times in 534 Posts	Air-To-Water Heat Pumps... It looks like Air-To-Water heat pumps are begining to seep into the American market. I found one called Daikin Altherma that extracts heat from air and delivers that heat to the home by way of water, suitable for circulating in a radiant floor. Of course, the lower the feed temperature of the water, the higher the overall COP... So if the radiant floor is optimized for low-temperature feed water, COP will be highest. The smallest unit is 3 Ton. It has a maximum COP of 4.34. This could be a real game changer. They even have an optional solar assist kit to go with. Now, if we can just figure out how to hack those nice, cheap little mini-splits to work with water... Regards, -AC_Hacker Attached Thumbnails __________________ I'm not an HVAC technician. In fact, I'm barely even a hacker... Last edited by AC_Hacker; 01-26-11 at 10:16 AM..

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