Ductless heatpump

[holly...@comcast.net]

Hi all - My son is putting in ductless heat pumps. The contractor is proposing Fujitsu. I have no experience with this brand. Has anyone used these? Are they reliable? Do they have any issues?

 

Holly

[Jonlin, Duane]

https://gotductless.com/blogs/comparisons/fujitsu-vs-mitsubishi-mini-splits

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From: seattle-home-e...@googlegroups.com <seattle-home-e...@googlegroups.com> on behalf of holly...@comcast.net <holly...@comcast.net>
Sent: Tuesday, December 7, 2021 8:13:12 PM
To: seattle-home-e...@googlegroups.com <seattle-home-e...@googlegroups.com>
Subject: Ductless heatpump

 

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Hi all - My son is putting in ductless heat pumps. The contractor is proposing Fujitsu. I have no experience with this brand. Has anyone used these? Are they reliable? Do they have any issues?

 

Holly

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[Brad Liljequist]

Having gone through a conversion myself, and having talked to several installers/people in the know, the Mitsubishi hyperheats are supposed to have better cold temp performance, and to me that counts for a lot.  The are the only HPs to use the efficiently created heat inside to defrost the outdoor unit (ie run in reverse).

[Court Olson]

I can confirm that.  Our Mitsubishi ducted system, which replaced a gas furnace, is working just fine here this morning when it is 16 degrees outside.

 

Court 

 

 
Court Olson

MSCE, CCM, DBIA, LEED AP 
Optimum  Building Consultants, LLC
206-245-7176

www.optimumbldg.com

    

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[hollytownes]

I can also confirm our Mitsubishi hyperheat is working just fine and has no electric strip back up. It re0laced our ducted gas furnace.

Holly

 

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[Ric Cochrane]

Piling on -- our Mitsubishi Hyper Heat (ducted system -- one condensing unit, two air handlers) ran just fine in the teen-temps this morning. I have always thought it was too much machine for our climate but it's nice to have reassurance that it will maintain temp in an old house.

Ric Cochrane

(206) 992-7233

"Find your place on the planet. Dig in, and take responsibility from there." — Gary Snyder

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[Brad Liljequist]

OK, I'm officially jealous.  Two space heaters on, Daikin Fit can't keep temp.  But then I undersized our HP...you can go too far.  So probably in part due to capacity.

Gotta enclose that crawlspace per the decarb retrofit plan!!

[Jonlin, Duane]

Urgently (testifying Thursday AM):

Can anyone give me a rough estimate of the difference in installed cost between a unitary heat pump water heater in your basement vs. a SanCO2 split system heat pump water heater?

DJ

	Duane Jonlin, FAIA Energy Code and Energy Conservation Advisor City of Seattle Department of Construction and Inspections P.O. Box 34019, Seattle, WA 98124-4019 P: 206.233.2781 |  duane.jonlin@seattle.gov
	As stewards and regulators of land and buildings, we preserve and enhance the equity, livability, safety and health in our communities.

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From: seattle-home-e...@googlegroups.com <seattle-home-e...@googlegroups.com> on behalf of hollytownes <holly...@comcast.net>
Sent: Monday, December 27, 2021 5:06 PM
To: Court Olson <col...@optimumbldg.com>; Brad Liljequist <bradlil...@gmail.com>

Cc: Western Washington Home Electrification <seattle-home-e...@googlegroups.com>
Subject: Re: Ductless heatpump

 

CAUTION: External Email

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[Allan Montpellier]

Duane,

Last summer, my SanCO2 unit cost about $10k. It required some extra demo work and had some routing challenges. With a simpler install where the tank was a short distance away from the outdoor unit, I’m guessing the cost could drop to around the $8k range. Like most technology, I anticipate that the costs will drop when there is a competitor and more volume.

 

Cheers

Allan Montpellier, PE, LEED AP PRINCIPAL

he | him PAE d: 206.596.8615 | m: 617.877.9516

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From: seattle-home-e...@googlegroups.com <seattle-home-e...@googlegroups.com> On Behalf Of Jonlin, Duane
Sent: Wednesday, February 16, 2022 9:42 PM
To: hollytownes <holly...@comcast.net>; Court Olson <col...@optimumbldg.com>; Brad Liljequist <bradlil...@gmail.com>
Cc: Western Washington Home Electrification <seattle-home-e...@googlegroups.com>
Subject: Re: Ductless heatpump

 

Urgently (testifying Thursday AM):

Can anyone give me a rough estimate of the difference in installed cost between a unitary heat pump water heater in your basement vs. a SanCO2 split system heat pump water heater?

DJ

 

Duane Jonlin, FAIA Energy Code and Energy Conservation Advisor City of Seattle Department of Construction and Inspections P.O. Box 34019, Seattle, WA 98124-4019 P: 206.233.2781 |  duane.jonlin@seattle.gov

To view this discussion on the web visit https://groups.google.com/d/msgid/seattle-home-electrification/SJ0PR09MB6255699FCCC221C8CA92D4BF81369%40SJ0PR09MB6255.namprd09.prod.outlook.com.

[Brian Gix]

$10K seems like a lot of money for a water heater.

I had my 15yo gas water heater replaced last spring with a heat pump all-in-one, and I couldn't be more pleased with it.  I think all of the electrical, labor, plumbing, and unit came to around $6K. I was able to make a small mod in that it's intake (where it's located) is in my usually warm laundry room that contains my gas furnace and clothes dryer, with a 3' duct the blows the cold air into the adjacent garage (where I keep my beer fridge).  It was very nice during last years heat-wave, and probably dropped my basement temp a few degrees.

That said, around here it seems like you always want to either pump the cold outside, or pump the heat outside. I would love some kind of easy switch on my water heater to set the intake/output air blower to either Summer mode or Winter mode.

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[Jonlin, Duane]

I agree about having that damper to provide cooling when desired but not during the rainy months.

Duane Jonlin, FAIA Energy Code and Energy Conservation Advisor City of Seattle Department of Construction and Inspections P.O. Box 34019, Seattle, WA 98124-4019 P: 206.233.2781 |  duane.jonlin@seattle.gov

As stewards and regulators of land and buildings, we preserve and enhance the equity, livability, safety and health in our communities.

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From: Brian Gix <bria...@gmail.com>
Sent: Thursday, February 17, 2022 9:46 AM
To: Allan Montpellier <Allan.Mo...@pae-engineers.com>
Cc: Jonlin, Duane <Duane....@seattle.gov>; hollytownes <holly...@comcast.net>; Court Olson <col...@optimumbldg.com>; Brad Liljequist <bradlil...@gmail.com>; Western Washington Home Electrification <seattle-home-e...@googlegroups.com>
Subject: Re: Ductless heatpump