jude Posted June 3, 2006 Report Share Posted June 3, 2006 I don't know about hrv but with dvs you would still need heating - so that would have to be added to the running costs. We have a heater in the dvs which bumps the costs up a lot, but also means we don't have to have other heating on as often although it is still needed. I'd like a heat pump and would then run the dvs without the heater switched on. Cheers Jude Quote Link to comment Share on other sites More sharing options...
beachy Posted June 3, 2006 Report Share Posted June 3, 2006 Yea hrv doesnt come with a heat pump, but it is an optional extra. I find the air is easier to heat, because it is alot dryer, we used to use a gas heater, now all we need is a colum heater. Quote Link to comment Share on other sites More sharing options...
Ira Posted June 3, 2006 Report Share Posted June 3, 2006 Double glazed windows do pay for themselves, but it'll be a while. Still, I wouldn't build a house without them. Be nice to have a really good heat exchanger with all the air going through that too, so you can ventilate the house without losing any of that expensive heat in the air. Quote Link to comment Share on other sites More sharing options...
tel Posted June 3, 2006 Report Share Posted June 3, 2006 both DVS and HRV operate on exactly the same principle. HRV can be more expensive as they subscribe to a vent per room. can make a huge difference if you sleep with the bedroom doors closed. if you keep the doors ajar overnight save your self some money and go less vents. i see @ 5 of these systems in operation each week and both work. if yours doesnt try turning the fan up or contact the co. Quote Link to comment Share on other sites More sharing options...
chimera Posted June 6, 2006 Report Share Posted June 6, 2006 Well I bought an HRV system tonight. Had to get a unit to cover vents for 6 rooms (4 bedrooms, office and living area). I could have waited, got quotes on similar systems, looked at kitset or DIY or get a dehumidifier for every room :-? but in the end, took one more look at my windows and thought better now than never It was priced a little higher than I expected so they sold it on the "buy it now we'll take the GST off" deal. So it set me back $3.2k, a tad more than I expected but for the "heating" and condensation benefits I think its worth it (the outlaws have an HRV - based on their one I term the word "heating" more as "taking the chill out of the air" but thats enough for me) Installation is in about 2 weeks time. I opted against getting one installed in the fish room, just extra cost plus I have different plans for venting that room. Strangely enough I dont get any condensation on the window in the fish room either. Well, proof is in the pudding I guess so we'll see how well it works in a couple weeks time! Quote Link to comment Share on other sites More sharing options...
slappers Posted June 6, 2006 Report Share Posted June 6, 2006 well i should have done that i think. got the air con man around today will do the hold house for 7k goes up in the loft vents in everyroom, so got to get the misses back to work again Quote Link to comment Share on other sites More sharing options...
beachy Posted June 6, 2006 Report Share Posted June 6, 2006 Nice work chim, so they got you with the buy now gig aye Same :lol: Quote Link to comment Share on other sites More sharing options...
chimera Posted June 6, 2006 Report Share Posted June 6, 2006 yeah well, I'd budgeted on $3k so that made my decision all the more easier Quote Link to comment Share on other sites More sharing options...
beachy Posted June 6, 2006 Report Share Posted June 6, 2006 Sweet, let us know what ya think, once its up and running Quote Link to comment Share on other sites More sharing options...
cookie extreme Posted June 6, 2006 Report Share Posted June 6, 2006 interresting that so many have moisture problems, shows the way most houses are build is crap. since having my heat pump installed i bring the laundry in to dry overnight and it chills the tank in the summer (no chiller) :bounce: Quote Link to comment Share on other sites More sharing options...
Ira Posted June 7, 2006 Report Share Posted June 7, 2006 Or it shows that most houses in NZ are in a country where "Most winters are humid is crap" Quote Link to comment Share on other sites More sharing options...
JDM Posted June 21, 2006 Author Report Share Posted June 21, 2006 any news on you hrv system chimera? has it been installed? Quote Link to comment Share on other sites More sharing options...
chimera Posted June 21, 2006 Report Share Posted June 21, 2006 nah bro, not yet, installed on the 27th (and counting!!!) will let you all know what i think of it's 'effectiveness' the follwing day its installed (need to give it a day to cycle the air a few times!) Quote Link to comment Share on other sites More sharing options...
beachy Posted June 21, 2006 Report Share Posted June 21, 2006 It will take a while for things to dry out in your house, but we noticed a difference straight away. Quote Link to comment Share on other sites More sharing options...
chimera Posted June 27, 2006 Report Share Posted June 27, 2006 HRV installed this morning. Got home tonight, very impressed - dont even need the fireplace on. Currently house is 22 degrees, ceiling is 15 degrees (was the other way around several hours ago) Whole house feels more comfortable already and outside is just as cold as it was last night. Will be interesting to see what its like in a weeks time once all areas of condensation are removed. My rating of it after half a day Does what it says on the box: 9/10 Web site information: 8/10 Presales in-home demo: 5/10 Presales service: 5/10 Installation service: 7/10 Price for what you get: 6/10 After sales service: unknown yet Now i'm just going to wait to see if and when I get my bottle of wine... Quote Link to comment Share on other sites More sharing options...
Feelers Posted June 27, 2006 Report Share Posted June 27, 2006 And my room was 5C last night, sitting on 80% humidity. :lol: Do these hrv things pump heat from the ceiling down into the house? Quote Link to comment Share on other sites More sharing options...
slappers Posted June 27, 2006 Report Share Posted June 27, 2006 keep a eye on your power to Quote Link to comment Share on other sites More sharing options...
skippy Posted June 27, 2006 Report Share Posted June 27, 2006 Hey Chim, have you worked out your overall average rating yet? :lol: What did it say on the box to score so highly? Quote Link to comment Share on other sites More sharing options...
lduncan Posted June 27, 2006 Report Share Posted June 27, 2006 Does the HRV system incorporate a heat pump into the ceiling unit, or is it like a fan heater, or is it just plain moving air around? Quote Link to comment Share on other sites More sharing options...
puttputt Posted June 27, 2006 Report Share Posted June 27, 2006 Does what it says on the box: 9/10 Web site information: 8/10 Presales in-home demo: 5/10 Presales service: 5/10 Installation service: 7/10 Price for what you get: 6/10 After sales service: unknown yet your not in IT by any chance are you Chimera Quote Link to comment Share on other sites More sharing options...
beachy Posted June 27, 2006 Report Share Posted June 27, 2006 It just blows air into the house, so if the roof cavity gets really cold it slows down, but its always going. As for power, we have had ours for about 8 months and havnt noticed very much on our bill. Quote Link to comment Share on other sites More sharing options...
Ira Posted June 27, 2006 Report Share Posted June 27, 2006 I wouldn't imagine, judging from the thing we have in our roof, that it uses more than 30-40 watts of power max. That would be something like $5/month on your power bill. Quote Link to comment Share on other sites More sharing options...
suphew Posted June 27, 2006 Report Share Posted June 27, 2006 Was just reading about DVSxin the paper today, the reckon for a house under 150m2 about 5c a day. Quote Link to comment Share on other sites More sharing options...
chimera Posted June 27, 2006 Report Share Posted June 27, 2006 Do these hrv things pump heat from the ceiling down into the house? yup. thermo in house, thermo in ceiling. set temp on controller. pumps air from ceiling cavity into house if its warmer than the house. on really low otherwise. Hey Chim, have you worked out your overall average rating yet? in terms of what its designed for, its really good and its only be half a day! in terms of cost and sales, not that good. What did it say on the box to score so highly? Does the HRV system incorporate a heat pump into the ceiling unit, or is it like a fan heater, or is it just plain moving air around? heat, recirculation, ventilation - so in that regard it does what it says on the box! the heating not so much, but wouldnt be that difficult to put a heat pump in the ceiling which the HRV would then deliver to the house. more taking the chill off by reducing humidity. says 12 degrees in ceiling and 21 in house at the moment. your not in IT by any chance are you Chimera? but of course Quote Link to comment Share on other sites More sharing options...
chimera Posted June 27, 2006 Report Share Posted June 27, 2006 i have a good write up on comparison between different ventilation systems if anyones interested pm me Quote Link to comment Share on other sites More sharing options...
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