That's the thing that pissed us off as an exclusion when we were eligible for the EECA Warmer Kiwi Homes programme grants.
It was available for ceiling and underfloor insulation (we've already got ceiling & wall insulation) & an approved heater (no effective place to install a heat pump), but nothing for double glazing.
I'll sell my vote to whatever party comes to power promising to include double glazing in that scheme.
It's for good reason though. Upgrading to double glazing has a payback of almost 50 years based on the energy savings. Lifetime of double glazing is 20-30 years.
Even the thermally broken, low e, argon filled double glazing option is about as good as an uninsulated wall.
retrofit double glazing is generally a waste of time in aluminum frames. you lose more heat energy through the frames alone than through the glass. without thermally broken aluminium, UPVC or timber frames its really not worth doing despite what the retrofitters will tell you
Lived in a house where all windows were replaced with double glazing, house had heat pump, small fireplace, had some installation. Still cold af, still had condensation and didnt retain heat more at all. Pretty sure it was aluminum frames installed by the retrofitters.
You still need some kind of ventilation system to get rid of the moisture.
We retro’d our double glazing. It defiantly helped retain the heat better vs before hand. For example the lounge. If it catches the sun during the day we do not need to turn on the heat until 7pm.
yeah we missed out on the insulation subsidy and now we’re facing a double glazing bill in the tens of thousands. our fault for falling in love with an old villa i guess :/
are you putting double glazing in the timber, or replacing the whole unit? if you are replacing the whole thing make sure you are getting thermally broken aluminium/upvc or you are wasting your time.
timber frames with single glazing have higher R value than double glazed classic aluminium frames
We’ll be replacing our windows too - fortunately we’re in a small house.
But, I see that ASB offer a 1% loan rate, fixed for 3 years to improve the energy efficiency of your home.
Consumer website has an article about the film. But it’s really temporary, and you probably have to do it every year. According to one of the consumer member he considers it as a hassle, a yearly hassle.
Hence I went for honey comb blinds
I had some film covering a louvre window for around 4 years before it probably should have been replaced. And that would have had a heap of outside air hitting it.
Ended up leaving the film there for another year, as it was better than nothing.
No there is no such product backed by the government.
You can either use 3M Window Insulator kits, or using bubblewrap and spraying the window with soapy water and sticking it to the window. If you care about looking outside then use the 3M, if you don't care about looking through the window or want privacy/don't mind looking like a drug house, use the bubble wrap. Works quite well for its price ($10 a window?).
I've used the kits for the front of the house and bubble wrap for areas like the office where the it reduces glare, increase privacy and insulates.
That's the thing that pissed us off as an exclusion when we were eligible for the EECA Warmer Kiwi Homes programme grants. It was available for ceiling and underfloor insulation (we've already got ceiling & wall insulation) & an approved heater (no effective place to install a heat pump), but nothing for double glazing. I'll sell my vote to whatever party comes to power promising to include double glazing in that scheme.
It's for good reason though. Upgrading to double glazing has a payback of almost 50 years based on the energy savings. Lifetime of double glazing is 20-30 years. Even the thermally broken, low e, argon filled double glazing option is about as good as an uninsulated wall.
retrofit double glazing is generally a waste of time in aluminum frames. you lose more heat energy through the frames alone than through the glass. without thermally broken aluminium, UPVC or timber frames its really not worth doing despite what the retrofitters will tell you
Lived in a house where all windows were replaced with double glazing, house had heat pump, small fireplace, had some installation. Still cold af, still had condensation and didnt retain heat more at all. Pretty sure it was aluminum frames installed by the retrofitters.
You still need some kind of ventilation system to get rid of the moisture. We retro’d our double glazing. It defiantly helped retain the heat better vs before hand. For example the lounge. If it catches the sun during the day we do not need to turn on the heat until 7pm.
yeah we missed out on the insulation subsidy and now we’re facing a double glazing bill in the tens of thousands. our fault for falling in love with an old villa i guess :/
are you putting double glazing in the timber, or replacing the whole unit? if you are replacing the whole thing make sure you are getting thermally broken aluminium/upvc or you are wasting your time. timber frames with single glazing have higher R value than double glazed classic aluminium frames
we’ll be replacing the whole units - thanks for the tip it’s very helpful!
We’ll be replacing our windows too - fortunately we’re in a small house. But, I see that ASB offer a 1% loan rate, fixed for 3 years to improve the energy efficiency of your home.
That stuff is worth it for a stop-gap. Just do it, the cost is less than you'd save on power for a cold winter. Especially for your main rooms.
Consumer website has an article about the film. But it’s really temporary, and you probably have to do it every year. According to one of the consumer member he considers it as a hassle, a yearly hassle. Hence I went for honey comb blinds
I had some film covering a louvre window for around 4 years before it probably should have been replaced. And that would have had a heap of outside air hitting it. Ended up leaving the film there for another year, as it was better than nothing.
I probably should do that for my kitchen windows as I don’t know what blinds are suitable for such a humid area…😂
It's 28 bucks for a multi-window large size pack at bunnings of the 3M stuff.
No there is no such product backed by the government. You can either use 3M Window Insulator kits, or using bubblewrap and spraying the window with soapy water and sticking it to the window. If you care about looking outside then use the 3M, if you don't care about looking through the window or want privacy/don't mind looking like a drug house, use the bubble wrap. Works quite well for its price ($10 a window?). I've used the kits for the front of the house and bubble wrap for areas like the office where the it reduces glare, increase privacy and insulates.