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| Thread ID: 107967 | 2010-03-09 04:01:00 | HRV system | Nomad (952) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 865246 | 2010-03-09 19:56:00 | I know so-- not say. They had theirs in a year before ours - so we saw the results. If HRV was not better Please explain this then. With the DVS, they had wet windows - as soon as the HRV was installed, within 5 days the windows had no more condensation, and its been that way ever since. The only thing that changed was the unit was a different brand installed. SO if it wasn't better please explain why the change. or do you think they put invisible little people in that run around drying everything before anyone gets up. The problem with DVS is that it only has one outlet while HRV (the company) and others have more than one outlet. All of those roof ones work on the same principle, some are better than others, also if your roof is space is already damp or you have rising damp under the house, they won't do much good. A better system is a true HRV system from www.cleanaire.co.nz or someone similar. |
wmoore (6009) | ||
| 865247 | 2010-03-09 20:11:00 | We looked at something similar to that but the only problem was the cost - WAY out of our price range. Sure you cant really put your health in $$ (maybe) but we got what we can afford. Only thing about outside air being pulled in, we live next to a main road, it gets rather "heavy" sometimes. The filters would really need so major replacement often I suspect. |
wainuitech (129) | ||
| 865248 | 2010-03-09 20:17:00 | or do you think they put invisible little people in that run around drying everything before anyone gets up. Funny enough that was going to be my next best scenario. Lmfao. |
Metla (12) | ||
| 865249 | 2010-03-09 20:32:00 | Beware the sceptic,when on a roll. | Cicero (40) | ||
| 865250 | 2010-03-09 20:32:00 | The problem with DVS is that it only has one outlet When we had DVS trying to sell us theirs, the sales guy suggested at least 3 outlets (into the rooms) - BUT two rooms he reckoned they couldn't get an outlet to, because of the way the house is - he did say he could put one in a place and aim it towards the room "hopefully" it would get there - errrrrr no. HRV guys said no worries, and did it right. Ever since we got it put in, the Mrs Asthma has gotten a lot less (almost none now), our place used to be damp in winter, not any more though, its a lot drier. As mentioned - Expol is the next thing to go in. You still need the heating though, the systems are not meant to replace heating but they do help. Wouldn't get a heat pump though, heard way to many complaints from people saying they suck power big time, one person I was talking to said their power bill tripled after theirs went in :eek: My sisters power bill went up quite a bit after her heat pump was installed as well.(last year) Met's -- Well I think they must exist anyway - as like most places, its amazing when "things" happen and no one knows anything about it, or who didn't do something. :p |
wainuitech (129) | ||
| 865251 | 2010-03-09 21:22:00 | Wouldn't get a heat pump though, heard way to many complaints from people saying they suck power big time, one person I was talking to said their power bill tripled after theirs went in :eek: My sisters power bill went up quite a bit after her heat pump was installed as well . (last year) Heat pumps are strange beasts in regards to power bills . We got a heat pump a couple of winters back and while our power bill has gone up, we are still paying less per winter in heating using the heatpump alone than what we were paying before installing heat pumps . Before heatpumping our house, we used gas, one heater was off the large outside bottle and 2 portable gas heaters in the house and one in my office . Apart from the fact that we no longer have the dampness from the use of the gas, our energy bill is now less than it was before . It also probably helps that we have a very good layer of pink batts through the roof space . But I would agree that some people have gone down the heatpump route and have paid heaps more in there energy bills per year while others haven't had much or no increase, a lot I think depends on the installation of the heatpump and the construction/age of the house . |
PinoyKiw (9675) | ||
| 865252 | 2010-03-09 21:50:00 | Mate leaves his on permanantly during winter @19c,his electricity bill has gone down. We are of the opinion that the walls etc don't have to be reheated all the time,using on and off system. |
Cicero (40) | ||
| 865253 | 2010-03-10 03:09:00 | or do you think they put invisible little people in that run around drying everything before anyone gets up. Could just be different weather conditions at the time, or the peoplewho installed the original DVS made a stuff up and didn't install it properly. The actual parts to set up a dvs /hrv system (they are essentially advertising the same features), are quite cheap, so an experienced DIYer could setup such a system. I know a DIYer who setup their own heat exchange system successfully. Has there been any testing on DVS and HRV systems, and how well they actually work. I would have though consumer would have done some reallly good testing, say over a year. |
robbyp (2751) | ||
| 865254 | 2010-03-10 04:18:00 | Regardless, folks are a bit skeptic. They are still interested in a heat pump :D They want to compare prices for say lounge alone or incl the bedrooms. One of the things they want is heat, they want to get rid of any other heating appliance. They also want a cold temperature in summer. We are just getting some quotes from diff suppliers. |
Nomad (952) | ||
| 865255 | 2010-03-10 04:23:00 | Extract from Consumer. Our advice. -------------------------------------------------------------------------------- An automatic ventilation system is much more effective and convenient than using a dehumidifier. And it's much more convenient than having to open and shut windows. Any of the three types - forced-air, solar-powered or heat-exchanger - can be very effective. Your choice will depend on the type of house you live in, your location, and your budget. Heat-exchanger systems are the best option, if you can afford it. They'll work in any situation, provided they're properly designed and installed. But there's a limited choice of heat-exchangers - all the models we found came from the same supplier. Make sure you're getting the genuine product. The HRV system implies it's a heat-exchanger. But it's only able to recover what heat is in the roof space. Heat-exchanger systems come in many sizes - and they have many options, including extra outlets. They should be designed to suit the size and style of your house. Solar-powered systems will be effective anywhere that has enough sunshine - which means most parts of New Zealand. And they will always have the lowest running costs. Forced-air systems will work in any house that has a warm dry roof space. But if your roof is heavily shaded or you live in a colder part of the country, a heater will be essential for ensuring adequate airflow without cold draughts. You may also have to fit small vents or leave windows slightly ajar on security stays to achieve sufficient air movement to fully control condensation. You don't have a roof space? Two forced-air systems - Moisture Master and DVS - offer units with a heater that work on outside air. Also consider a Vent Axia through-the-wall style heat exchanger system. Consider whether you want a unit with simple controls or a more sophisticated model that allows you to set the cut-out and cut-in temperatures, and so on. You'll pay a lot more for a fancy system, but won't necessarily get any better ventilation. Always choose suppliers who are familiar with your local climate, and get at least two competitive quotes. :) |
Trev (427) | ||
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