Geekzone: technology news, blogs, forums
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 
18765 posts

Uber Geek

  #422809 30-Dec-2010 23:42
Send private message

geek4me: We are in a newly built Golden Home for 2 years now. It has double glazing, a heat pump but no HRV system. We have had condensation issues both winters.

The main problem is the double glazing was done (cheaply) without an insulation layer between the outside and the inside metal frames. The cold outside temperature transfers directly to the inside metal causing bad condensation on the metal and inside glass requiring the windows to be wiped dry each winter morning.

Keeping bedroom doors open at night reduced the problem, if closed water would condense and drip from bedroom light fittings.

An HRV would definitely help reduce this condensation as would (more expensive) insulated double glazing in my opinion. Sub standard bathroom heat-light-fan extractor units which do not extract the required volume of damp bathroom air do not help the situation.


Thats why it is important to spend the money initially on a well designed house with passive solar heating and natural ventiallation, and  with high quality componentry. What you would need is thermally insulated aluminum profiles, as you get condensation on the cold aluminum window frames, and that is a common issue. The alternative is to use timber or PVC frames. The aluminium frames should have a drip tray at the bottom, with a drain to the outside, to drain out the condensation.

Affiliate link

Affiliate link: Norton Secure VPN helps secure private information using bank-grade encryption when using public Wi-Fi on your PC, Mac, or mobile device.
18586 posts

Uber Geek


  #422865 31-Dec-2010 09:09
Send private message

Consumer mentioned double glazed aluminium windows in the current or previous issue, how they need an insulating layer in there.

I had my old wooden windows retrofitted with double glazing by Magnetite in Wellington. They have a good product but shockingly bad service, and incompetent installers who did very shoddy work for me. They had to come back five times to do significant rework, they basically put the windows up three times before they got it right. One panel and mounting system actually fell right off the window onto the ground, and the rest were on the way. They also did $3500 worth of damage to my carpet and curtains, getting silicone sealant onto them.

3685 posts

Uber Geek


  #423602 3-Jan-2011 04:15
Send private message

Our house has a heatpump and HRV system with the outside vent add on.
Problem is the HRV will always circulate air constantly. So you have to turn it off to stop it bringing cold air down from the attic or outside when you are trying to heat with the heatpump. And on a cold night you have to turn it off, but it starts up after 8 hours again so on a cold morning, its freezing inside the house.

Also a heatpump will only dry the air when it is cooling the air. Some heatpumps have a dehumidify mode where they will Heat, then cool, then heat - maintaining the temperature but drying during the cooling stages.

Ray Taylor

There is no place like localhost

18586 posts

Uber Geek


  #423670 3-Jan-2011 10:58
Send private message

Heat pumps have timers, in the winter I always set it to come on an hour before I get out of bed.

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

News and reviews »

Belkin Screenforce Tempered Glass Screen Protector and Bumper - Apple Watch
Posted 15-Aug-2022 17:20

Samsung Introducing Galaxy Z Flip4 and Galaxy Z Fold4
Posted 11-Aug-2022 01:00

Samsung Unveils Health Innovations with Galaxy Watch5 and Galaxy Watch5 Pro
Posted 11-Aug-2022 01:00

Google Bringing First Cloud Region to Aotearoa New Zealand
Posted 10-Aug-2022 08:51

ANZ To Move to FIS Modern Banking Platform
Posted 10-Aug-2022 08:28

GoPro Hero10 Black Review
Posted 8-Aug-2022 17:41

Amazon to Acquire iRobot
Posted 6-Aug-2022 11:41

Samsung x LIFE Picture Collection Brings Iconic Moments in History to The Frame
Posted 4-Aug-2022 17:04

Norton Consumer Cyber Safety Pulse Report: Phishing for New Bait on Social Media
Posted 4-Aug-2022 16:50

Microsoft Announces New Solutions for Threat Intelligence and Attack Surface Management
Posted 3-Aug-2022 21:54

Seagate Addresses Hyperscale Workloads with Enterprise-Class Nytro SSDs
Posted 3-Aug-2022 21:50

Visa Launching Eco-friendly Payment Solutions in New Zealand
Posted 3-Aug-2022 21:48

NCR Delivers Services to Run Bank of New Zealand ATM Network
Posted 30-Jul-2022 11:06

New HP Portfolio Supports New Era of Hybrid Work
Posted 28-Jul-2022 17:14

Harman Kardon Launches Citation MultiBeam 1100 Soundbar
Posted 28-Jul-2022 17:10

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.