I've got a 20-unit 3-story apartment project in Seattle that's evaluating using DHPs vs. tankless hydronic in each unit. I'm a big fan of DHPs but haven't seen them in a MF setting - can they all use a common condenser on the roof? Anybody done this?

Tags: DHPs, multi-family

Views: 254

Reply to This

Replies to This Discussion

Not an answer to your question, but if you had a common compressor, wouldn't the building owner have to foot the heating bill?

I've seen a photo or two showing outside units for individual mini-splits mounted on the exterior wall of a multi-story building, accessible from the balcony for each apartment. Not pretty, but probably more efficient and individually metered.

Thanks for the reply, David. You're right - it does boil down to whether they need individual metering or not. Mounting the compressors on the exterior probably won't fly, although I've seen photos of those too...in Europe, where they seem to be willing to let form follow function. :)

 

I'd still love to hear from anyone who's actually put them in a multi-family project - anybody?

Yes, this can be done and is done.

 

Many of the ductless heat pump manufacturers have these types of units available. The most well-known is 'City-Multi" from Mitsubishi. The ratio of indoor units to outdoor units depends on the design heating/cooling load and equipment capacity, but, yes, there are probably options where you could have 20 indoor units running off of just 1 outdoor unit.

Hi Pam

King County Housing Authority has installed mini splits on a multifamily in Boulevard Park.  It is called Boulevard Manor.  It is a 72 unit complex.  All the outdoor units are on the roof. It is not a 'city multi, I think they used Daikon. Each individual tenant pays their own bill. 

If you want to use one outdoor unit I think city multi with mitsubishi is your best bet.  I would consult with Ecotope for alternates.  They are in the city, call and ask for John Heller.

I have had good luck with Advanced energy management, they are a ductless heat pump installer and a mitsubishi approved contractor.  call them for a bid, analysis.  253-250-8170,

Dan Auer

Great info, Dan - thank you!

 

RSS

Featured Forum Discussions

Glass Block Windows

Started by Ken Kalke in Best Practices. Last reply by Sean Lintow Sr on Saturday. 1 Reply

What's the Most Profitable HVAC Job for Your Company?

Started by Wayne Melancon in HVAC. Last reply by Ken Kalke on Friday. 1 Reply

Lighting replacement - 300 watt LED flood light

Started by Mary Sinkler in General Forum. Last reply by Eric Kjelshus on Friday. 1 Reply

EZ Green Home is Hiring!

Started by Chloe Chapman in General Forum Jan 5. 0 Replies

Videos

  • Add Videos
  • View All

Latest Activity

Ira Eisenstein replied to tedkidd's discussion Home Performance is Failing - let's turn that around?
"I have been a home inspector since 2003 and evolved into energy related issues and became a home…"
1 hour ago
Ira Eisenstein liked tedkidd's discussion Home Performance is Failing - let's turn that around?
1 hour ago
Bruce Fillmore joined Diane Chojnowski's group
Thumbnail

Home Energy Pros on Twitter

We've created a twitter list of members of Home Energy Pros who tweet about home performance and…See More
3 hours ago
Bruce Fillmore posted photos
3 hours ago
Profile IconMark Freeman and Bruce Fillmore joined Home Energy Pros
21 hours ago
Sean Lintow Sr replied to Ken Kalke's discussion Glass Block Windows
"Well as most I know (if not all) wont meet the energy code - none and for those that do opt…"
Saturday
Steve Gadsby posted a photo
Friday
Steve Gadsby commented on Perry Ning's blog post Warnings About Portable Air Conditioners
"We couldn't agree more about the problems caused by portable air conditioners. Here at Canada…"
Friday

Home Energy Pros

Welcome to Home Energy Pros – the unique digital community by and for those who work in the home energy performance arena.

Home Energy Pros was founded by the developers of Home Energy Saver Pro (supported by the U.S. Department of Energy) and brought to you in partnership with Home Energy magazine.  Home Energy Pros is sponsored by the Better Buildings Residential Network. Please honor our Guidelines

© 2017   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service