Vapor injection heat pump

[Jake24]

-$9k BEV rebates
-$5k delivery allowance
-$49k for my '23 Grand Cherokee
Paddleboard - dealer gift
BC Hydro pays half for the Mobile Charger
Sweet deal on an incredible truck...walked out with a no compromise smile.

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[Jake24]

Then tell me why we have a heat pump installed that cost over $5,000.00 just for the heat pump and last winter during several cold spells where we were -21F or so and the gas furnace ran most of the time because the heat pump would not heat the house. Called the heat pump manufacture and they said they lose efficiency at these temps. We can quote all the stats we want, but real life shows the opposite. The tesla heat pumps could not keep up in the cold last winter. Just go to the Tesla forums and read all the complaints regarding the Tesla's with heat pumps and how cold the drivers were in the the cold weather. I had one of these and sold it because of this and bought the Ford without the heat pump.

Heat pump w/electric back-up & tankless hot water. 3 cold months @$200 per...no complaints.
F**k Tesla...overpriced & ugly.

 

[Jake24]

I'm satisfied...forget a leftover '23.
Silverado 3WT woulda been a compromi$e.

 

[Amps]

Then tell me why we have a heat pump installed that cost over $5,000.00 just for the heat pump and last winter during several cold spells where we were -21F or so and the gas furnace ran most of the time because the heat pump would not heat the house.

To answer those questions, somebody would need to know things like:

• How old is the heat pump?
• What size did you get for $5k?
• Is it properly sized for your home?
• Who manufactured it?
• What technology does it use?
• What is the manufacturer's HSPF rating?
• How long did the climate stay below 0ºF?

No doubt at -21º you're going to be using backup heat, but a properly sized current technology heat pump rated 10+ HSPF should be able to efficiently meet your needs at least down to 5ºF. With cheap natural gas availability, your heating contractor may have made a cost/benefit compromise on the heat pump.

 

[Formerly]

Take a look at model 3 data with and without heat pump. That’s about as much info you'll get for the lightning until winter.

Not a fair comparison because it uses an octovalve which is a beautifully engineered stroke of genius that salvages heat from the battery and other equipment among doing other things in an optimal fashion.

 

[husky10101]

To answer those questions, somebody would need to know things like:

• How old is the heat pump?
• What size did you get for $5k?
• Is it properly sized for your home?
• Who manufactured it?
• What technology does it use?
• What is the manufacturer's HSPF rating?
• How long did the climate stay below 0ºF?

No doubt at -21º you're going to be using backup heat, but a properly sized current technology heat pump rated 10+ HSPF should be able to efficiently meet your needs at least down to 5ºF. With cheap natural gas availability, your heating contractor may have made a cost/benefit compromise on the heat pump.

My heating contractor did not pick out the heat pump. My son and I built multimillion homes on the coast until I retired so I do my homework and know what I am doing. It is brand new before last winter. I am not the only one with these issues, no matter what brand of HP and size.

 

[husky10101]

Also when I just had my nat gas furnace, I didn't need backup heat. In a new build having to install a HP plus a backup furnace just increases the cost and increases the time that the owner sees the payback and most folks just assume that all they need is the HP. This is the only point I was trying to make, maybe not in a very good way. My bad.

 

[Kev12345]

If only a natural gas furnace was an option on the lightning

 

[Amps]

If only a natural gas furnace was an option on the lightning

No natural gas option. Perhaps there's an Eberspächer gasoline-ethanol-diesel model for you!

 

[marc_hanna]

We had a cold snap a couple winters ago and heat pumps failed all across town. Burst pipes everywhere. An air to air unit is really only hitting 150% efficiency. Once you get below -20C they really struggle and the backup heat will have to kick in. I assume the 24’s unit will have a resistance wire heater backup built in. Expect about 30-40% energy savings on the heat pump down to -15C

 

[TaxmanHog]

I assume the 24’s unit will have a resistance wire heater backup built in.

I'd like to see a schematic of the new system for 24's, it seems logical that the PTC's is kept if only for the battery conditioning needs, but the heat pump system could also warm the glycol loop heading into the battery.

 

[tls]

My heating contractor did not pick out the heat pump. My son and I built multimillion homes on the coast until I retired so I do my homework and know what I am doing. It is brand new before last winter. I am not the only one with these issues, no matter what brand of HP and size.

If you installed a cold-climate whole house heat pump for $5000, you're either a genius, or it is possible you may know somewhat less about heat pumps than you think.

We live on the shaded side of a ski mountain, well up the hill. When we put the heat pump in our house we kept the old electric baseboard - but we've never needed it. Our coldest night last year was -16F - two degrees colder than the Mitsubishi h2i is rated for - but it worked fine. Both the Tesla Model Y (2020, with heat pump) and the Lightning started up fine that morning and were comfortable and warm to drive.

 

[marc_hanna]

I'd like to see a schematic of the new system for 24's, it seems logical that the PTC's is kept if only for the battery conditioning needs, but the heat pump system could also warm the glycol loop heading into the battery.

It makes sense that it would.

That’s going to be a pretty big unit. It’ll need to be 4x the capacity of just an air conditioner.

 

[safridi22]

-$9k BEV rebates
-$5k delivery allowance
-$49k for my '23 Grand Cherokee
Paddleboard - dealer gift
BC Hydro pays half for the Mobile Charger
Sweet deal on an incredible truck...walked out with a no compromise smile.

Just yesterday dealer called and convinced me to swap my MY24LAR for a MY23PLAT
The bev for 23plat is 13.8k!!…..i was like…screw the pump lol

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