New Mitsubishi Hyper Heat multi splits have finally arrived
![](https://secure.gravatar.com/avatar/5491353f22afcc5c6e52ad9022b265bb?s=52&d=https%3A%2F%2Fimages.greenbuildingadvisor.com%2Fapp%2Favatars%2F200x200%2Fn.png&r=g)
I was having a discussion with someone on reddit and they mentioned having a MXZ-3C24NAHZ model recommended by a contractor, which I had never seen before. Googled it and, lo and behold, I find documents published just a couple months ago (like this one) describing a whole new line of Hyper Heat multi splits, sized from 20,000 BTU/hr through 48,000, and supporting 2 to 8 indoor units. HSPF rating is generally in the 9 to 11 range.
I’ve seen rumors that such units were coming “soon” and it seems they have finally (almost) arrived. acwholesalers.com lists the 3C24NAHZ for sale with a ship date of “Spring 2015”. This is a pretty big deal because up until now, you could either get Hyper Heat, or multi splits, but not both.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part
![](https://www.greenbuildingadvisor.com/app/themes/greenbuildingadvisor/dist/img/modules/detail-library/thumb1.png)
![](https://www.greenbuildingadvisor.com/app/themes/greenbuildingadvisor/dist/img/modules/detail-library/thumb2.png)
Replies
Nick, thank you for posting this information for the large capacity hyper heat mini splits
Will have to wait and see what the whole packages cost, but over 3 grand for just the compressor, as with all the multi unit systems, it seems only to make sense if you have no place to put multiple compressors
I like the multi-head option and larger capacity, but there's a bit of a hit in performance compared to the single zone FH units. Heating Season Performance Factor (HSPF) tops out at 11 on the new MXZ-C's versus 12-13.5 on the FHs, and SEER is lower too (18 or so) especially against the FH09's 30.5.
Someone said the Fujitsu is the best single head.... I want the best. Someone post such.