Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

2 posts

Wannabe Geek

Topic # 236042 14-May-2018 22:16
Send private message

Hi - I really like the Rinnai temperature controller - where you can set the temperature digitally & have the shower/bath water come out at that exact temperature.




However it seems like it only works with gas infinity heaters. Is there a similar system available for use with electric hot water cylinders?




I have searched for 'electronic water temperature control valve' but all seem either foreign, or for large-scale systems (or both). The thermostatic ones seem to have both quite large fluctuations, and no way to change the temperature (eg. to lower for baby bath)


Is there something similar the the Rinnai Compact COntroller (which is only $164-ish..) that anyone has used / recommends / knows of?? 

Create new topic
416 posts

Ultimate Geek
+1 received by user: 185

  Reply # 2016085 14-May-2018 23:06
Send private message

Do you want to dial in an exact temperature? Or are you just looking to avoid surges in temperature, and risk of scalding when somebody else uses a tap in the house.

There are a large number of thermostatic mixers available. These are widespread in hospitals etc, and generally ensure that the outlet temperature cannot exceed 38 degrees. (some people can't feel temperature, so using a normal mixer can be very dangerous).

The one below retails at $1269

2491 posts

Uber Geek
+1 received by user: 310

  Reply # 2016090 14-May-2018 23:54
Send private message

The Rinnai controller is relatively cheap because all it has to do is control the temperature of the hot water coming out of the heater. With an electric hwc you've got water at a fixed temp that you're having to mix with cold.

2896 posts

Uber Geek
+1 received by user: 1096


  Reply # 2016098 15-May-2018 02:07
Send private message

If it has to be an eletronic type temperature controller. Easiest just to replace your electric cylinder with Rinnai Gas hot water.

Otherwise get a Grohe or similar thermostatic shower mixer, and install it so it supplies hot water to the whole house, or just the bathroom. Then you can easily adjust the temperature. You have to have mains pressure hot water for a thermostatic mixer to work properly.

2 posts

Wannabe Geek

  Reply # 2017134 16-May-2018 19:46
Send private message

Great, thanks for the advice - looks like it will be a bit more money than I expected - will look at again at the Rinnai infinty system. Thanks for the help. Nick

Baby Get Shaky!
1555 posts

Uber Geek
+1 received by user: 385


  Reply # 2017255 17-May-2018 00:20
Send private message



Great, thanks for the advice - looks like it will be a bit more money than I expected - will look at again at the Rinnai infinty system. Thanks for the help. Nick



Would be money well spent going with a Rinnai IMHO. The temperature control and bath fill features are totally worth the extra investment and for us have taken the stress out of trying to get the bath temperature just right for the wee one. Nothing worse then a wriggly toddler while you're trying to chuck some extra cold water in the bath.

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

Intel introduces new NUC kits and NUC mini PCs
Posted 16-Aug-2018 11:03

The Warehouse leaps into the AI future with Google
Posted 15-Aug-2018 17:56

Targus set sights on enterprise and consumer growth in New Zealand
Posted 13-Aug-2018 13:47

Huawei to distribute nova 3i in New Zealand
Posted 9-Aug-2018 16:23

Home robot Vector to be available in New Zealand stores
Posted 9-Aug-2018 14:47

Panasonic announces new 2018 OLED TV line up
Posted 7-Aug-2018 16:38

Kordia completes first live 4K TV broadcast
Posted 1-Aug-2018 13:00

Schools get safer and smarter internet with Managed Network Upgrade
Posted 30-Jul-2018 20:01

DNC wants a safer .nz in the coming year
Posted 26-Jul-2018 16:08

Auldhouse becomes an AWS Authorised Training Delivery Partner in New Zealand
Posted 26-Jul-2018 15:55

Rakuten Kobo launches Kobo Clara HD entry level reader
Posted 26-Jul-2018 15:44

Kiwi team reaches semi-finals at the Microsoft Imagine Cup
Posted 26-Jul-2018 15:38

KidsCan App to Help Kiwi Children in Need
Posted 26-Jul-2018 15:32

FUJIFILM announces new high-performance lenses
Posted 24-Jul-2018 14:57

New FUJIFILM XF10 introduces square mode for Instagram sharing
Posted 24-Jul-2018 14:44

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.