https://www.ohbaby.co.nz/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 30 Apr 2026 11:42:20 +0000 Thu, 06 Aug 2015 13:58:13 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.05 360 https://www.ohbaby.co.nz/forum/RSS_post_feed.asp?TID=18605 https://www.ohbaby.co.nz/forum/forum_images/web_wiz_forums.png https://www.ohbaby.co.nz/forum/ https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=5887442&title=dvs-hrv-smartvent-air-systems#5887442 Author: Guest_91400
Subject: 18605
Posted: 06 August 2015 at 1:58pm

People do free in home assessments, I've recently had HRV do a quote for me and last night had Energy solutions come and do a quote and we are getting one of their systems, alot cheaper. We are also getting a heat transfer system put in also to move the warm air from our fire through the vents also. Great investment for health reasons and a drier and warmer home:) Good luck]]> Thu, 06 Aug 2015 13:58:13 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=5887442&title=dvs-hrv-smartvent-air-systems#5887442 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=426710&title=dvs-hrv-smartvent-air-systems#426710 Author: Candkids
Subject: 18605
Posted: 28 June 2008 at 10:04pm

we have a dvs
it was installed about 4-5 yrs ago so doesnt have the flash remote pad thing lol
it works fantastic
but . . .
in winter it also pulls the cold air out of the roof and all thru the house! so i have it off at the moment and our windows are dripping! its gross.

i also found that if we used the gas heater the dvs didnt work ,]]> Sat, 28 Jun 2008 22:04:29 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=426710&title=dvs-hrv-smartvent-air-systems#426710 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=426638&title=dvs-hrv-smartvent-air-systems#426638 Author: Kelpa
Subject: 18605
Posted: 28 June 2008 at 8:07pm

Ah yes ...ours is one you go get the bottle filled and can move it around.....................

Hmmm might look into the Moisture master then and cross the other two off the list!]]> Sat, 28 Jun 2008 20:07:57 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=426638&title=dvs-hrv-smartvent-air-systems#426638 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=425362&title=dvs-hrv-smartvent-air-systems#425362 Author: Bumble
Subject: 18605
Posted: 27 June 2008 at 9:18am

The DVS and HRV do not have the optional heat transfer kit to be added to them (As far as I am aware)

The moisture master does.

What happens is the moisture master will bring down warm air from the roof cavity until the roof cavity lowers to a certain temp (generally 18 deg)

Then the heat transfer kicks in (provided the lounge gets to a certain temp, which you decide) Using the same exit vents that the roof air goes out, the unit gently sucks out the warm air in the lounge and puts it out the other vents.

Is your Gas heater in the lounge flued?? (As in it is not one of those box gas heaters that you can move around, it is an installed one) The reason I ask is a non-flued Gas heater is introducing moisture (as a by product of heating) into the air.]]> Fri, 27 Jun 2008 09:18:32 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=425362&title=dvs-hrv-smartvent-air-systems#425362 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=425138&title=dvs-hrv-smartvent-air-systems#425138 Author: Kelpa
Subject: 18605
Posted: 26 June 2008 at 9:01pm

So would the heat transfer thing stop the condensation too?? Sorry for some reason having trouble getting head around it!!! LOl (hmm maybe pregnancy)]]> Thu, 26 Jun 2008 21:01:37 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=425138&title=dvs-hrv-smartvent-air-systems#425138 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=425124&title=dvs-hrv-smartvent-air-systems#425124 Author: caliandjack
Subject: 18605
Posted: 26 June 2008 at 8:57pm

Then you want two different things.
DVS and HRV are home ventilation systems which draw warm dry air from your roof and by pushing it out into your living space, this forces the colder air out of your home.

a Heat transfer kit is what takes the warm air from the heat source ie: heater/fire/heat pump etc and transfers it to another room by way of a vent.

We got DVS and two panel heaters came with it, they keep the chill off the air, our house temp is around 16 degrees in the evenings, it does drop over night.

We've found DVS fantastic during the Autumn and Spring months, when the weather is cooler but still sunny as you get the benefits from the temp in the roof.

DVS struggles a bit in winter, cause it never gets hot enough. DVS will automatically turn off if the house gets below 18 degrees.]]> Thu, 26 Jun 2008 20:57:26 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=425124&title=dvs-hrv-smartvent-air-systems#425124 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=425104&title=dvs-hrv-smartvent-air-systems#425104 Author: Kelpa
Subject: 18605
Posted: 26 June 2008 at 8:46pm

Im so confused with what they all do....

I basically want something to stop the condensation and to "move" warm air from the hotter areas of the house which mostly occurs naturally as all living areas are pretty warm throughout summer and winter...just our rooms are all cold......... Plus I dont get how it would work if it was a freezing cold day and there was no sun would it then take the GAS heater heated air from the Living areas and pump it through to the other rooms?????]]> Thu, 26 Jun 2008 20:46:15 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=425104&title=dvs-hrv-smartvent-air-systems#425104 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424999&title=dvs-hrv-smartvent-air-systems#424999 Author: Red
Subject: 18605
Posted: 26 June 2008 at 7:52pm

We have an HRV and it is great the and we don't get any condensation. I think for those who have not found it effective - you might want to get it serviced or something cos we have no complaints here. It is not a heating system though which people don't always realise.

We got it installed last may and it cost approx $2,800 for a small 3 bedroom house.]]> Thu, 26 Jun 2008 19:52:06 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424999&title=dvs-hrv-smartvent-air-systems#424999 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424906&title=dvs-hrv-smartvent-air-systems#424906 Author: peachy
Subject: 18605
Posted: 26 June 2008 at 6:49pm

We have a DVS system in our home and our house is over 50 years old so it can be freezing! The DVS does keep it very dry and takes the chill off the air. We have very little, if any condensation when the DVS is on.

We switched the DVS off accidentally last winter for a few weeks and our windows were dripping with condensation and water was running down the walls under the window sills. So that prooved to us that it is doing something when it is on!]]> Thu, 26 Jun 2008 18:49:30 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424906&title=dvs-hrv-smartvent-air-systems#424906 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424858&title=dvs-hrv-smartvent-air-systems#424858 Author: Daizy
Subject: 18605
Posted: 26 June 2008 at 5:17pm

Our house is always wet. The walls are colour steel so they dont breath. We cant open window in wet weather cos they slide and are huge so the rain just comes straight in. Having a lot of people in a small space doesnt help either.
We have had to change the curtains in our house soo many times because the mould on them gets so bad. Im sure it cant be good for our health.
It gets extreemly cold as well having steel walls, although when we heat it up it doesnt take long and usually holds the heat pretty well.

We have been searching for things to help for a while now but having no ceiling space has been a real problem. We have dehumidifyers running all the time, which helps a bit but our power bills are shocking!]]> Thu, 26 Jun 2008 17:17:11 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424858&title=dvs-hrv-smartvent-air-systems#424858 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424855&title=dvs-hrv-smartvent-air-systems#424855 Author: mum2emj
Subject: 18605
Posted: 26 June 2008 at 5:07pm

sounds great ann, our house has very wet windows and kayla's room is quite damp- she is often sick... thanks to the house sick programme for opening my eyes a bit and making me realise that it could be the house!!!

not so good with the eczema issue though serenity, we have eczema in our family! argh! gotta weigh it all up now, i hadnt thought about it drying out the air tool much!

guess you cant win!]]> Thu, 26 Jun 2008 17:07:53 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424855&title=dvs-hrv-smartvent-air-systems#424855 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424801&title=dvs-hrv-smartvent-air-systems#424801 Author: AnnC
Subject: 18605
Posted: 26 June 2008 at 4:17pm

Got an HRV here .... well worth the cost to get it in as our walls use to be wet from the cold and condensation in our bedrooms and now NONE AT ALL. I use to wash the walls down twice in winter due to the condesation mould that got on there and NONE AT ALL... Have't had to washa t all as no condensation mould! And that means the house doesm't smell old and damp either... It doesn't heat the house though - although now the house takes less to heat due to being dry]]> Thu, 26 Jun 2008 16:17:06 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424801&title=dvs-hrv-smartvent-air-systems#424801 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424742&title=dvs-hrv-smartvent-air-systems#424742 Author: MumsyMoo
Subject: 18605
Posted: 26 June 2008 at 3:30pm

We have an HRV and do find it quite good...

The only thing that we're not enjoying is the fact that the air is now SO dry that our eczema is being affected, as eczema is not actually an allergy related issue, but has to do with the fact that the skin lacks the moisture necessary to function correctly. So the dry air is really rather irritating for us!

No condensation is good though, and as Tishy said, the air flow is another positive thing.

Others have mentioned it, but I'd recommend spending a bit more and getting something with a heat transfer kit. They're not really a means of keeping a room warm, but it definately takes the chill off and warming the air up a bit more, therefore reducing the need for a heater... So whereas it may cost a bit more up front, in the long run they're a great investment and save you a few $$ on heating.]]> Thu, 26 Jun 2008 15:30:08 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424742&title=dvs-hrv-smartvent-air-systems#424742 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424734&title=dvs-hrv-smartvent-air-systems#424734 Author: mum2emj
Subject: 18605
Posted: 26 June 2008 at 3:24pm

we are looking into this at the mo had hrv around last night for a quote ad will call on the others, although i have heard lots of good about hrv]]> Thu, 26 Jun 2008 15:24:32 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424734&title=dvs-hrv-smartvent-air-systems#424734 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424712&title=dvs-hrv-smartvent-air-systems#424712 Author: Bumble
Subject: 18605
Posted: 26 June 2008 at 3:15pm

We are looking at getting a Moisture master.

These have an optional heating unit that can take the chill off the air once the temp in the ceiling space drops (No it does not "heat" as such) It has 4 levels of heat options. You can also get the Heat transfer option as well, and they have another option that enables you to bring in cool external air during summer.

I think that running cost is comparitable with the DVS and HRV, except for when you add in the heat option. That bumps it up to about $1.00 per hour, but you wouldn't run that full time anyways..


The main seller for me on the Moisture Master was the Heat Transfer option. We have a Kent fireplace n our lounge and the lounge gets REALLY hot, whereas the back bedrooms are REALLY cold...

]]> Thu, 26 Jun 2008 15:15:50 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424712&title=dvs-hrv-smartvent-air-systems#424712 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424703&title=dvs-hrv-smartvent-air-systems#424703 Author: mandz
Subject: 18605
Posted: 26 June 2008 at 3:11pm

Can someone easily explain the difference between HRV and DVS or are they the same?

Thanks
Amanda]]> Thu, 26 Jun 2008 15:11:34 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424703&title=dvs-hrv-smartvent-air-systems#424703 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424662&title=dvs-hrv-smartvent-air-systems#424662 Author: IVFGirl1111
Subject: 18605
Posted: 26 June 2008 at 2:46pm

We have just got DVS and LOVE LOVE LOVE it.

It cost $2800 I think for 2 vents and a heater in the hallway.]]> Thu, 26 Jun 2008 14:46:01 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424662&title=dvs-hrv-smartvent-air-systems#424662 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424660&title=dvs-hrv-smartvent-air-systems#424660 Author: Daizy
Subject: 18605
Posted: 26 June 2008 at 2:45pm

We need an HRV as we have major condensation problems. Or some sort of System that does the same thing.
A lot of them work for us as we have no ceiling space.

Edited by Daizy]]> Thu, 26 Jun 2008 14:45:24 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424660&title=dvs-hrv-smartvent-air-systems#424660 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424631&title=dvs-hrv-smartvent-air-systems#424631 Author: tishy
Subject: 18605
Posted: 26 June 2008 at 2:28pm

We have HRV. We find it's great for the condensation and also we no longer have a stuffy bedroom with 2 adults and 2 babies sleeping in there.
I no longer feel the need to open windows during the day either as the house is getting ventilated.

However having recently gotten a smartvent pamphlet in the letterbox we would have gone for that one with the additional 'Heat Transfer' Kit which would take the heat out of our warm sitting room and transferred it around the rest of the house. ]]> Thu, 26 Jun 2008 14:28:53 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424631&title=dvs-hrv-smartvent-air-systems#424631 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424549&title=dvs-hrv-smartvent-air-systems#424549 Author: sadie
Subject: 18605
Posted: 26 June 2008 at 1:41pm

Hiya,
We had HRV put in before last winter and I think it's been great. Since then we've had no condensation, and as the air in the house is much drier, it makes it a lot more efficient to heat.
We have a 3 bed bungalow, and got the basic system with 4 vents. From memory, I think it was around $2,400 or something.
Definitely worth it (IMO), especially as it is always listed as a selling point in property listings.
Hope that helps x]]> Thu, 26 Jun 2008 13:41:22 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424549&title=dvs-hrv-smartvent-air-systems#424549 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424543&title=dvs-hrv-smartvent-air-systems#424543 Author: james
Subject: 18605
Posted: 26 June 2008 at 1:39pm

we have hrv dont get one they are crap my best riends mum has a dikin heat pump and its great ]]> Thu, 26 Jun 2008 13:39:15 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424543&title=dvs-hrv-smartvent-air-systems#424543 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424536&title=dvs-hrv-smartvent-air-systems#424536 Author: Bizzy
Subject: 18605
Posted: 26 June 2008 at 1:35pm

my sister has an HRV but doesnt think much of it - she did say tho it is probably her house not the product.]]> Thu, 26 Jun 2008 13:35:12 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424536&title=dvs-hrv-smartvent-air-systems#424536 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424521&title=dvs-hrv-smartvent-air-systems#424521 Author: mandz
Subject: 18605
Posted: 26 June 2008 at 1:24pm

I would be interested in costs etc too - cause our power bill was $350 last month - first month since Oliver came into our lives!

Cheers
Amanda]]> Thu, 26 Jun 2008 13:24:10 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424521&title=dvs-hrv-smartvent-air-systems#424521 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424487&title=dvs-hrv-smartvent-air-systems#424487 Author: Kelpa
Subject: 18605
Posted: 26 June 2008 at 12:56pm

Does anyone have one of these.......or looking at getting one? I am sort of umming and ahhing but interested in any thoughts people have?]]> Thu, 26 Jun 2008 12:56:17 +0000 https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=18605&PID=424487&title=dvs-hrv-smartvent-air-systems#424487