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: 200

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

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Tom White posted videos
4 hours ago
Maria Lacey replied to Linda Wigington's discussion Low-cost electricity monitoring: Accuracy & Applications in the group 1000 Home Challenge
"I attempted to use an AZTech device. I have used the Watt Stopper, Watts Up Pro, Kill-A-Watt…"
9 hours ago
Maria Lacey joined David Eggleton's group
Thumbnail

1000 Home Challenge

Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding…See More
9 hours ago
Profile IconCynthia Sandherr, James Skeldon, Mathew Castel and 3 more joined Home Energy Pros
11 hours ago
Andy Li replied to David Parker's discussion Energy auditor equipment for sale- blower door, duct tester,combustion analyzer in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Is Minneapolis Duct Blaster still available? send some photos and how much do you ask for? my…"
14 hours ago
Andy Li joined allen p tanner's group
Thumbnail

Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
14 hours ago
Hal Skinner replied to Richard Beyer's discussion What's your opinion on the best insulation option for your GREEN attic space?
"Mornin Richard, Maybe 'Options' might be more appropriate here?  We take the path…"
16 hours ago
Richard Beyer posted a discussion
17 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service