Daiken Heat Pumps

[RWebb]

I am thinking of getting a ductless heat pump put in - not many companies do this locally. The one I know of that does says the Daiken is the best, etc. etc.

For a 2 head unit (upstairs & downstairs) the cost from them is about $6,500.

any thoughts?

[billybek]

I know that they have some pretty slick technology in some of product.

Go to YouTube and do a quick search there. Not sure on reliability and longevity of that type of unit.

Daikin AC: VRVIII-S Heat Pump (RXYMQ)

[911dean]

Mitstubishi units are very reliable in my expierience. I do not repair them often. I can not speak of Daiken.

When we do see problems with ductless systems, they can become very time consuming to repair.

Dean

[Scott R]

Do you have a very small house? It takes three cassettes to cover my cabin, not exactly cheap either. I've also lost the defroster unit twice now in five years, these are Fujitsu.

I'll probably ditch the entire system when we get a public gas line next summer. I can't find a reason for keeping them after that, power consumption is just to high. The best I can get is about 89 deg out of the system on optimal days, but a gas furnace does 130+, so we will as I said likely be ripping it out. ymmv.

[911dean]

Originally Posted by Scott R

Do you have a very small house? It takes three cassettes to cover my cabin, not exactly cheap either. I've also lost the defroster unit twice now in five years, these are Fujitsu.

I'll probably ditch the entire system when we get a public gas line next summer. I can't find a reason for keeping them after that, power consumption is just to high. The best I can get is about 89 deg out of the system on optimal days, but a gas furnace does 130+, so we will as I said likely be ripping it out. ymmv.

I agree, I would not use them if a conventional system is feasible(ducted).

Dean

[RWebb]

huh - they are supposed to be this super energy saver & more comfy - the claim is 30% savings in heating costs

the house is~ 2,100 sq. ft. - half upstair & half downstairs


the proposal says it is "2/3-Zone, Daikin 7,000 – 31,200 Btu Variable Speed Ductless Heat Pump System"

[ShakinJoe]

I actually do this for a living; size, select, and sell them. I represent Fujitsu which competes with the Daikin product. Both good equipment. The Fujitsu might offer lower ambient operating temps, higher efficiencies, and better service. The biggest advantage is availability of parts.

$2500 per ton is a good place to start. I can give you tips on what to look for and expect regardless of brand if needed.

[ShakinJoe]

Originally Posted by 911dean

I agree, I would not use them if a conventional system is feasible(ducted).

Dean

Nonsense. Ductwork is often a big source of energy loss! The new trend in these systems provide ducted units, but they are typically shorter duct runs.

These systems offer SEER ratings in the mid 20's.....

[Scott R]

Originally Posted by RWebb

huh - they are supposed to be this super energy saver & more comfy

the house is~ 2,100 sq. ft. - half upstair & half downstairs

Maybe they function better in the Pacwest? Mine are at 11k feet.

[ShakinJoe]

Originally Posted by Scott R

Do you have a very small house? It takes three cassettes to cover my cabin, not exactly cheap either. I've also lost the defroster unit twice now in five years, these are Fujitsu.

I'll probably ditch the entire system when we get a public gas line next summer. I can't find a reason for keeping them after that, power consumption is just to high. The best I can get is about 89 deg out of the system on optimal days, but a gas furnace does 130+, so we will as I said likely be ripping it out. ymmv.

You have a refrigerant charge problem. I have seen outlet temps well over 100 in Michigan at 17 outside!

I would agree that gas heat rocks...but have a qualified tech look at your refrigerant charge.

[Scott R]

Originally Posted by ShakinJoe

You have a refrigerant charge problem. I have seen outlet temps well over 100 in Michigan at 17 outside!

I would agree that gas heat rocks...but have a qualified tech look at your refrigerant charge.

They keep telling me it the defrost unit, and when they replace it get's a bit closer to 90 for a while then creeps down after a few months.

[ShakinJoe]

Originally Posted by Scott R

They keep telling me it the defrost unit, and when they replace it get's a bit closer to 90 for a while then creeps down after a few months.

Does not make sense. Try a different tech. Thousands of sold here each year and can only count problems on one hand.

I'll bet you a case of warsteiner it is low on refrigerant charge.

[Scott R]

Originally Posted by ShakinJoe

Does not make sense. Try a different tech. Thousands of sold here each year and can only count problems on one hand.

I'll bet you a case of warsteiner it is low on refrigerant charge.

I'll do that, I was going to set an appointment up with him in March anyway to get a dead battery replaced for the solar. Thanks for the tip!

[RWebb]

Originally Posted by ShakinJoe

I actually do this for a living; size, select, and sell them. I represent Fujitsu which competes with the Daikin product. Both good equipment. The Fujitsu might offer lower ambient operating temps, higher efficiencies, and better service. The biggest advantage is availability of parts.

$2500 per ton is a good place to start. I can give you tips on what to look for and expect regardless of brand if needed.

Thanks Joe!


I would love to get those tips.

[911dean]

Ductless systems absolutely energy efficient. I just wouldn't heat or cool entire home with them. If it's the best option to use one absolutely. I'll be installing one at a friends house this spring. It's the best option for him.

Average 1800 suare foot home 1 furnace/1 air conditioner. Ductless 5-7 cassettes 1-2 condensing units. That's alot of units to maintain or increase your odds of repair bills over 10+ years. I don't find the cassettes to be ascetically pleasing either. A properly designed and sized ducted system will work very well and be energy efficient. Better yet for comfortable heat, radiant.

I can promise you 100 degree air blowing at you, as it's heating your home, with 17 degree outside air temp is not comfortable. I would also think , Michigan's design temp for heat is a lot lower than 17 degrees.

Dean

[Scott R]

Originally Posted by buladscot

I represent Fujitsu which competes with the Daikin product.

Your company was the first to offer high-altitude setups for those of us above 8k feet. I haven't been back to check if anyone even does to this day.