Heat Pump hot water warranty and recommendation

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56 posts

Master Geek
+1 received by user: 48

#3400452 6-Aug-2025 19:41

Kickinbac:

I’d stay away from any hot water heat pump with a full warranty less than 5 years. Look for the term ‘sealed system’ in the warranty terms as this refers to the refrigeration system which is the expensive part to fix.

Gree have this unit with full 7 year warranty. My workmate installed one last week.

https://www.greeac.co.nz/products/show/gree-whio-inverter-hot-water-heat-pump

I’ve got a Panasonic CO2 HWHP, split style, running for about 4 months. Has a 7 year warranty. So far I’m impressed and getting better savings than I expected over winter.

I have a CO2 system as well, installed around 4 years ago. The power saving was more than we expected as well.

Saor Alba

johno1234

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Uber Geek
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#3400453 6-Aug-2025 19:56

Kickinbac:

johno1234:

Just got a notice from Mercury informing us of a rather large increase in the fixed line charge for our gas.

Has anyone been through the process of closing a gas account? Any fishhooks or disconnection charges or just a simple close the account, turn off the gas and stop billing me?

This sounds like a new topic. Start a new one.

The OP’s thread is getting off gas onto heat pump hot water. Disconnecting gas is part of the equation.

DjShadow

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#3400455 6-Aug-2025 20:04

I should have added earlier, the plumber that quoted me the Carrier Green 300L said the unit only got released this month hence the lack of reviews. The 10 year warranty looks good however.

Kickinbac

477 posts

Ultimate Geek
+1 received by user: 101

#3400464 6-Aug-2025 20:32

@johno1234

That’s not how I read it. I thought it was about hot water heat pumps. I just thought you’d have better luck with an answer in a new topic. And it would be an interesting topic.

DarrenJ

147 posts

Master Geek
+1 received by user: 28

#3400470 6-Aug-2025 21:14

DjShadow:

I should have added earlier, the plumber that quoted me the Carrier Green 300L said the unit only got released this month hence the lack of reviews. The 10 year warranty looks good however.

Mine was quoted Carrier Blue, not green...and sent through a really low resolution badly scanned PDF flyer, which didn't help with confidence on it :(

DarrenJ

147 posts

Master Geek
+1 received by user: 28

#3400471 6-Aug-2025 21:19

Kickinbac:

I’d stay away from any hot water heat pump with a full warranty less than 5 years. Look for the term ‘sealed system’ in the warranty terms as this refers to the refrigeration system which is the expensive part to fix.

Gree have this unit with full 7 year warranty. My workmate installed one last week.

https://www.greeac.co.nz/products/show/gree-whio-inverter-hot-water-heat-pump

I’ve got a Panasonic CO2 HWHP, split style, running for about 4 months. Has a 7 year warranty. So far I’m impressed and getting better savings than I expected over winter.

Thanks for info on sealed system. I wasn't sure what that was.

Googling local outfits that do Gree, seems it's heat pumps they do not hot water heat pumps :(

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Kickinbac

477 posts

Ultimate Geek
+1 received by user: 101

#3400491 7-Aug-2025 07:05

DarrenJ:

Kickinbac:

I’d stay away from any hot water heat pump with a full warranty less than 5 years. Look for the term ‘sealed system’ in the warranty terms as this refers to the refrigeration system which is the expensive part to fix.

Gree have this unit with full 7 year warranty. My workmate installed one last week.

https://www.greeac.co.nz/products/show/gree-whio-inverter-hot-water-heat-pump

I’ve got a Panasonic CO2 HWHP, split style, running for about 4 months. Has a 7 year warranty. So far I’m impressed and getting better savings than I expected over winter.

Thanks for info on sealed system. I wasn't sure what that was.

Googling local outfits that do Gree, seems it's heat pumps they do not hot water heat pumps :(

They are sold through Real Cold , refrigeration suppliers. I don’t know how they go about selling them to plumbers as not the usual guys that walk in the door.

DjShadow

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#3400812 7-Aug-2025 19:35

Correction to my earlier post, it is the Carrier Blue. I’ve just put in an order for one which will be installed on 11 Sept so happy to put a few pics up once done.

DarrenJ

147 posts

Master Geek
+1 received by user: 28

#3400823 7-Aug-2025 20:30

DjShadow:

Correction to my earlier post, it is the Carrier Blue. I’ve just put in an order for one which will be installed on 11 Sept so happy to put a few pics up once done.

Thanks!

Ive told myself to decide by end of week. Missus getting sick of me over analyzing models..lol

At moment im leading towards Rhinnai. From my limited understanding of the technobabble specs, its slightly quieter and more efficient and cheaper to run than Carrier Blue, however a 10 yr warranty on Carrier is attractive. How this translates to anything tangible real world im not sure.. lol but still thinking it over which one.

Rheem I cant get past the 3yr warranty.

Kickinbac

477 posts

Ultimate Geek
+1 received by user: 101

#3401137 8-Aug-2025 16:57

DarrenJ:

DjShadow:

Correction to my earlier post, it is the Carrier Blue. I’ve just put in an order for one which will be installed on 11 Sept so happy to put a few pics up once done.

Thanks!

Ive told myself to decide by end of week. Missus getting sick of me over analyzing models..lol

At moment im leading towards Rhinnai. From my limited understanding of the technobabble specs, its slightly quieter and more efficient and cheaper to run than Carrier Blue, however a 10 yr warranty on Carrier is attractive. How this translates to anything tangible real world im not sure.. lol but still thinking it over which one.

Rheem I cant get past the 3yr warranty.

I think you are on the right path. Stay away from anything that doesn't have 5 year + warranty.

WWHB

56 posts

Master Geek
+1 received by user: 48

#3401148 8-Aug-2025 18:08

I don’t know where you are seeing the Carrier blue has a 10 year warranty the carrier brochure clearly states it’s only 5 years and the unit still use R134a which is old technology

https://ahi-carrier.co.nz/cdn/shop/files/Carrier_Blue_700a234a-3217-451e-ab9f-4209e55ead45.pdf?v=7278270187193178091?download=1

Editing this response to say it the air con style heat pump that get a 10 year warranty

Saor Alba

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DjShadow

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#3401161 8-Aug-2025 19:38

This is what we were provided about Carrier Blue (hopefully this link works): https://jumpshare.com/s/6TQbtzEo8TVjkgeLPsHw

DarrenJ

147 posts

Master Geek
+1 received by user: 28

#3401163 8-Aug-2025 19:54

WWHB:

I don’t know where you are seeing the Carrier blue has a 10 year warranty the carrier brochure clearly states it’s only 5 years and the unit still use R134a which is old technology

https://ahi-carrier.co.nz/cdn/shop/files/Carrier_Blue_700a234a-3217-451e-ab9f-4209e55ead45.pdf?v=7278270187193178091?download=1

Editing this response to say it the air con style heat pump that get a 10 year warranty

Brochure i got has R290 and 10 year warranty. Model DHW-300N7

DarrenJ

147 posts

Master Geek
+1 received by user: 28

#3401164 8-Aug-2025 19:55

DjShadow:

This is what we were provided about Carrier Blue (hopefully this link works): https://jumpshare.com/s/6TQbtzEo8TVjkgeLPsHw

Copy and pasting link worked. Same brochure i got. Thanks!

WWHB

56 posts

Master Geek
+1 received by user: 48

#3401169 8-Aug-2025 20:23

Yep that brochure posted is completely different to what is on the carrier website in NZ, sorry if I caused any confusion

Saor Alba

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