Forum Home
PC World Chat
Thread ID: 59349	2005-06-29 07:50:00	Home Ventilation systems	wmoore (6009)	PC World Chat

Post ID	Timestamp	Content	User
368004	2005-06-29 07:50:00	Hi Does anyone have a Home ventilation system (eg DVS etc) installed in their home. How Good is it and does it get rid of all condensation ? Also why did you go with that company ? Thanks Warrick	wmoore (6009)
368005	2005-06-29 08:48:00	Does anyone have a Home ventilation system (eg DVS etc) installed in their home . Yes . Have had a MoistureMaster unit for three years . How Good is it and does it get rid of all condensation ?It is very good . It does not prevent 100% of the condensation all of the time but it would be better than 75% and what does occur disappears much quicker than without it . If you have a condensation problem I would definitely recommend DVS .	FoxyMX (5)
368006	2005-06-29 09:02:00	If you have a tile roof don't bother, the roof space needs to be enclosed. Very expensive for what it is, a speed controlled fan with filter, bringing warm air, except in winter, from the roof space and feeding it through the ceiling and into your house. You get all the pollution, smoke, smells etc when the wind is right. Kind of works, but not that good.	zqwerty (97)
368007	2005-06-29 09:59:00	I disagree zqwerty. The ventilation systems require a constant circulation of air from outside the house, and the kits generally come with 2 vents to put in the eaves of the house (well mine did anyway) We have a Weiss HVS system (basically the same as the DVS), and it works brilliantly. We have a tile roof which is very well ventilated, and it provides dry air into the house 24/hrs a day. The only downside is that the air coming in is quite cool. To counter this, we have installed an "Air Tempering Unit" which is basically an inline heater, and while it doesn't heat the house as such, the air coming in isn't cold - so recently when it's been 2degrees outside int he morning, inside it's about 13degrees or so, without heating on. In terms of running costs, you'll find that even though you spend money on the power bill with the unit, you save money in heating. It's well worth it - my system only cost just over $1400 all up (I installed it myself), and it makes a huge difference. Windows still get a little bit of condenstation in rooms where people are sleeping in, but otherwise it works a treat. My reason was price - basically the same system, (this is a NZ made unit) for about half the price - a quote from Moisturemaster was around the $2800 mark. Installation is simple, except you should get an electrician to do the wiring part. I got mine from Mitre10 Mega in Hastings.	somebody (208)
368008	2005-06-29 10:05:00	We have had one installed in our house for about 7 years now. We went for the DVS and two outlets due to the size of the house. I have a tile roof and have never found that a problem at all in regards to its operation. The unit is set to run at full speed when the roof space is between 18 and 24 degrees c and slows to 10% when under 18c or completely shuts off over 25c so as not to overheat the house. Powerbill wise you don't even notice it probably 10-20 cents a day, way less than running a dehumidifier for even a hour or two. Effectiveness My wife used to grab a towel and bucket and squeegee most mornings and go from room to room and wipe down the windows and sills. The house was 2-3 years old at that time so it wasn't moisture coming out of the timber. The house construction is concrete floor, brick and tile, aluminium joinery. Since we had the DVS installed the problem was cured after a few months and I haven't seen the sqeegee, bucket and towel used for that purpose since. Even during the winter it will still kick into full speed at times and that will change the entire volume of air in the house in around 3 hours. why she still insists on wanting to leave windows and doors open for fresh air I can't figure or is just to make it easier for the mice to come in and find a nice, warm cosy place for the winter....... In regards to the comment above of installing a air tempering unit and heating the incoming air, I wouldn't bother. Hot air rises and that in no way with the flow coming thru it ever heat the incoming air sufficiently or noticeably raise the temperature of the house. All it will most probably do it raise the power bills heaps. My house has insulation (batts or similar in the walls) and rock wall in the ceiling. I live in south auckland and we use no other heating in the house usually, and no I'm not rugged up ike a mummy either. If you wish to heat the house, a heat pump is the way to go and i have looked at them as well, but I think 3k buys a sh*t load of power for the 2kw fan heater we run a few times a year.....	EX-WESTY (221)
368009	2005-06-29 10:07:00	if your having a condensation problem, why not leave a window slighty open?	Prescott (11)
368010	2005-06-29 10:38:00	I do have to say, the air tempering unit did make a hell of a difference. When we first installed the system about 3 months ago, we didn't have the air tempering unit connected to the power. Even though it was only autumn, you would wake up in the morning and the air would be so cold that you could see your breath. Now, even on 2-degree mornings, the air in the house isn't too bad - at least it isn't cold. This might just be because of my tile roof - it's about 40 years old, and is very well ventilated - eg. you can stand in the roof space and feel the wind. During summer, the roof space is still relatively cool, and in winter, it's absolutely freezing in the mornings.	somebody (208)
368011	2005-06-29 22:52:00	If you have a tile roof don't bother, the roof space needs to be enclosed . Don't talk utter rubbish . The roof on this house is an unlined concrete tile job and the DVS system works very well . It could possibly work better if the roof was steel but to say it is a waste of time because it is a tile roof is just untrue . Very expensive for what it is, a speed controlled fan with filter, bringing warm air, except in winter, from the roof space and feeding it through the ceiling and into your house . Expensive is a relative term . Sure it isn't "cheap" for what it is but it is a lot cheaper than replacing mouldy carpet, curtains and clothing every few years in a damp house, not to mention the nuisance and expense of cleaning mould off ceilings and walls and having to repaint them . Don't forget your health either - a family member's asthma cleared up after the DVS was installed . Remember, too, that it may be more expensive to purchase than a dehumidifier but is much cheaper to run than the latter . It also deals with the whole house, not just a couple of rooms near where a dehumidifier would be placed . No one has to remember to empty buckets of water every few hours, either . You get all the pollution, smoke, smells etc when the wind is right . Kind of works, but not that good . This area can get pretty bad with smoke pollution on still nights and there have been nights when the smoke from the neighbour across the road's very stinky chimney has been smelt but it is not very often . I believe that the latest systems have better filters in them that address this issue if you live in an area of high pollution but ordinary "smells" are not normally detected . I have an extremely acute sense of smell so I would be the first one complaining if it was bad . Out of interest, do you have a DVS yourself, zqwerty?	FoxyMX (5)
368012	2005-06-30 01:51:00	The best ventilated houses are old villas.	pctek (84)
368013	2005-06-30 05:41:00	Yes we do have a DVS. The idea is that the roof space will act as a reservoir of warmth from the heat rising from the house below. This air will not be saturated with moisture because it is essentially air from the outside heated by the upward losses from the house. However the tile roof leaks like a sieve and the end result is a lot of cold, sometimes freezing air being introduced to the house at the ceiling level. When it is raining the air is saturated with moisture. There is an improvement as far as condensation goes with regards to the windows but some of that is due to the house just being colder. I use a Scoopy in my part of the house to clean the windows in the morning but I am in a small flat adjoining the main DVS serviced house with "only" 8 large windows to clean every day. Do you know what a Scoopy is? www.cleanware.co.nz They work well, we have 3 of them for the days that the DVS is not quite up to the task.	zqwerty (97)
1 2 3 4 5 6