Is anybody aware of an hybrid air-source heat pump and gas boiler available in U.S. market?

decumanusgreen | Posted in Mechanicals on March 21, 2015 12:55pm

I know Daikin makes one for the the European market, but I can’t find a similar product that is available here.

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user-2890856 | Mar 21, 2015 02:41pm | #1
What exactly would you be looking to do with such a unit Joseph ?
decumanusgreen | Mar 21, 2015 03:14pm | #2
Both dhw and radiant floor heat.
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Martin Holladay | Mar 22, 2015 07:02am | #3
Joseph,
The equipment you are talking about appears to be a Daikin Altherma that is programmed to coordinate performance with a tankless gas boiler; more information is here:
http://www.daikin.co.uk/minisite/hybridheatpump/index.jsp

In the warmer sections of the U.S., it is common for HVAC contractors to install an air-source heat pump for space heating, for use when outdoor air temperatures are mild, and to also install a gas furnace that comes on when the outdoor temperature drops to about 25 degrees F.

These days, now that cold-climate heat pumps have been invented, there are fewer reasons to install these two types of heating systems.
charlie_sullivan | Mar 22, 2015 05:03pm | #4
Daikin does sell an air-source hydronic heat pump here. Someone good with controls could wire up controls for that with any boiler to do what you want. But you might be fine with just the air-source heat pump.