Upgrading to a Hyper-Heat Mitsubishi Heat Pump
Aston01
| Posted in Mechanicals on
Is there any benefit in upgrading to a hyper-heat unit in the Dallas area?I like the idea of more consistent efficiency across the temperature range over a standard Mitsubishi heat pump system, but I am unsure if the additional equipment cost would be wasted in the Dallas area.
Any thoughts?
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Replies
Most likely not. There is a premium you pay for hyper heat units, so if you can heat and cool your place with a standard split system, there is not much gained.
If you compare the units, except for the low temperature heating capacity there is not much efficiency difference between the two, so I would get the unit that best matches both your cooling and heating loads.
For example central ducted unit:
https://ashp.neep.org/#!/product/29010
VS
https://ashp.neep.org/#!/product/34523
I'm in much colder climate here and when I was looking for budget heating for a studio, even having to oversize to make up for cold temperature output loss, a standard mini split was significantly cheaper than a hyper heat unit.
Maybe I am not reading right, but it appears your numbers don't support your point. The H2i is significantly more efficient cooling at 95 degrees than the other, COP 3.82 vs 2.93, 30 percent more efficient at what a heat pump is going to do in Texas.
I found when looking that the most efficient ac units were hyperheat, whether you use the heat or not, but again, am I not seeing something
I was looking at the heating specs, usually there is not much difference there.
The cooling does look much better for the hyper heat. Strangely enough the SEER rating is worse for the hyper heat, so it might only be better when running full tilt. The modulation range is much better for the non-hyper heat, so that might be the issue.
Not even Mitsubishi seems to really have a straightforward answer, but I just looked up my degree days and compared them to the efficiency drop-off curve and that made it a little easier to decide.
I like the idea of having a very consistent energy usage curve, but the cost-benefit for my particular location didn't seem to be there.
https://www.degreedays.net/