Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 | 3 
2819 posts

Uber Geek
+1 received by user: 1064

Subscriber

  Reply # 1995081 12-Apr-2018 22:10
Send private message quote this post

raytaylor:

==============================


A standard resistive heater is approx 99.9% efficient


That means for every 1kw of power you put in, about 999 watts of heat comes out. 




@raytaylor Where does the last 1 watt of electrical energy go to if it doesn't get converted into heat? Keeping in mind the laws of physics, in that energy cannot be created or destroyed.

Sure, it doesn't sound like much. But multiply that 0.001% by every single electric stove, heater, hot water cylinder, kettle etc in NZ. Suddenly that 0.001% equals a lot of energy supposedly going somewhere other than heat.





3209 posts

Uber Geek
+1 received by user: 616

Trusted

  Reply # 1995099 12-Apr-2018 23:11
Send private message quote this post



@raytaylor Where does the last 1 watt of electrical energy go to if it doesn't get converted into heat? Keeping in mind the laws of physics, in that energy cannot be created or destroyed.

 

The 'On' light and/or fan. 

 

:-)





Ray Taylor
Taylor Broadband (rural hawkes bay)
www.ruralkiwi.com

There is no place like localhost
For my general guide to extending your wireless network Click Here




3209 posts

Uber Geek
+1 received by user: 616

Trusted

  Reply # 1995100 12-Apr-2018 23:22
Send private message quote this post

razor2000nz:

 

Ive been looking into IR panel heaters as well, but for use in the bedrooms, wondering if they would be good for those kind of rooms, the info on the website says the surface of the panel can reach 100 degrees, so maybe not so good for kids etc

 

 

A resistive panel heater would be slightly more efficient and not as hot to touch. 

 

The 'eco' part is the fact its 425 watts and will therefore take 4x longer to heat a room vs a 2000 watt fan heater.

 

But they work very well if they only need to heat one room. 

 

https://www.mitre10.co.nz/shop/goldair-eco-panel-heater-with-digital-thermostat/p/317690 

 

 

 

 





Ray Taylor
Taylor Broadband (rural hawkes bay)
www.ruralkiwi.com

There is no place like localhost
For my general guide to extending your wireless network Click Here




93 posts

Master Geek
+1 received by user: 9


Reply # 1995238 13-Apr-2018 10:03
One person supports this post
Send private message quote this post

wow 370 watts can heat a room 23 square meters and is as small as a paperback book... i found this on the internet so it must be true. hyperlink: https://handyheater.co.nz

1543 posts

Uber Geek
+1 received by user: 381


  Reply # 1996456 15-Apr-2018 14:14
Send private message quote this post

IR heating is great if you're naked and wet in an otherwise freezing bathroom where you get heat on your skin at the flick of a switch ie - heat lamps commonly found in craptastic airvent-combo light kits.

 

Also works well for heating fingers in a freezing workshop/shed if mounted from a high ceiling.  Also has the side effect of heating up your work bench.  Some may not like this.

 

 

 

For anything else they would just seem weird.  I'd hate to be either constantly blasted by IR heat or sitting in the cold depending on which part of the room I was sitting in.  Money better spent on a heatpump that makes the air warm and not just your skin and random surfaces around the room.

 

We have an ecopanel in the boy's room to complement the heatpump and this works well.


20 posts

Geek


  Reply # 2045353 28-Jun-2018 11:55
Send private message quote this post

I don't know about the cost but our local RSA has had the same infrared ones for at least 45 years - never had to be replaced. As soon as they are turned on (they are high on the walls) you instantly feel the warmth. If they were expensive to run you would think they would have thrown them out years ago.


3209 posts

Uber Geek
+1 received by user: 616

Trusted

  Reply # 2045803 29-Jun-2018 00:45
Send private message quote this post

Yep they are expensive to run but they provide instant heat and are usually suitable for large halls / churches etc where there is a large amount of air to heat in a short amount of time - infrared heats the skin first before the air around the person. 





Ray Taylor
Taylor Broadband (rural hawkes bay)
www.ruralkiwi.com

There is no place like localhost
For my general guide to extending your wireless network Click Here




706 posts

Ultimate Geek
+1 received by user: 10


  Reply # 2054698 12-Jul-2018 06:37
Send private message quote this post

I had ir flat panels mounted on my ceilings about 5 years ago. I like that they're noiseless, and I like the heat shining down on me rather than blowing in my face. However, they must have undersized them as I still need a small convective heater to supplement them as my house is old and poorly insulated.

If I did it again I would buy directly from China bypassing local sellers, and have them with images on them! Our get some that were mirrors as well.

The controllers are finicky since there are 6 time changes I need to program in each day.

20 posts

Geek


  Reply # 2054889 12-Jul-2018 11:18
Send private message quote this post

 

 

Do you find they use more power than the cheap electric heaters?


706 posts

Ultimate Geek
+1 received by user: 10


  Reply # 2054921 12-Jul-2018 11:55
Send private message quote this post

They use as much power as they are rated for, and there's a variety of sizes.

 

I got mine from Infracomfort http://infracomfort.co.nz/ 4 and 5 years ago.

 

Did my heating costs drop?  I don't know as I wasn't living there before I installed them, but my father was, and he was getting power bills of over $400/month, and mine are not that high even though there's now 3 people living here.  But I also installed some insulation in the 30 cm ceiling space ( blown wool ).

 

 


20 posts

Geek


  Reply # 2054955 12-Jul-2018 12:33
Send private message quote this post

Thanks, That does help. According to that site I only need 850 watt heater which is lots smaller than the usual electric heater. That would save on power.

 

 


706 posts

Ultimate Geek
+1 received by user: 10


  Reply # 2054998 12-Jul-2018 13:34
Send private message quote this post

These days I would err on oversizing as you can always turn them down a notch.  But you can't increase once they're installed.


1 | 2 | 3 
View this topic in a long page with up to 500 replies per page 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 »

Hawaiki Transpacific cable ready-for-service
Posted 20-Jul-2018 11:29


Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34



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.