Forum Home
PC World Chat
Thread ID: 135343	2013-10-22 22:35:00	HRV warranty?	wallarro (11242)	PC World Chat

Post ID	Timestamp	Content	User
1356869	2013-10-23 08:23:00	Yeah don't bother with DVS either.	zqwerty (97)
1356870	2013-10-23 17:08:00	I can't say enough BAD stuff about HRV. Tell them to get stuffed and keep your money. There was one here when we bought the place. I couldn't see that it accomplished anything other than putting filth round the outlets on the ceiling. The control box, I'd turn it off, come back and it would be running again. Eventually we disconnected the wires. It made no difference to temperature, airflow or humidity so what is the point supposed to be?	pctek (84)
1356871	2013-10-23 18:49:00	In common with most products which are extensivly pushed by telemarketers and TV infomercials HRV + DVS et al are designed to remove cash from naive consumers. They do this extremely well. I agree with Paul keep your cash and avoid them at all costs.	CliveM (6007)
1356872	2013-10-23 19:48:00	There was one here when we bought the place. I couldn't see that it accomplished anything other than putting filth round the outlets on the ceiling. The control box, I'd turn it off, come back and it would be running again. Eventually we disconnected the wires. It made no difference to temperature, airflow or humidity so what is the point supposed to be? The missing factor here is that you lack faith. With faith, miracles occur often (Using the geological time scale). Like invisible friends, these wondrous entities on high reward only the faithful. These machines actually achieve their design goals surprisingly often, that being to transfer money from the householder to the distant advertiser. Extended warranties and service contracts continue the transfer for indefinite periods while continuing to do nothing for you. I'm surprised they don't offer an option to run the machine on water :devil	R2x1 (4628)
1356873	2013-10-23 21:12:00	These systems do actually perform as the hype says, more or less. They are good at bringing in outside air via the roof space or directly, ie ventilation, until the inside temperature equals the outside air temperature, especially on a cold damp winter morning. Then two marvellous things happen, firstly there is now no warm air to cool on the windows...ergo no condensation, no mould and your house is as dry as the outside air. Secondly since the inside temperature equals the outside temperature there can be no heat flow (as mentioned earlier for the ceilings) either in or out...ergo, there is no need for wall, ceiling or underfloor insulation. Of course when someone has spent $3k-$5k having it installed then it is a human characteristic not to admit to having bought a lemon, indeed it becomes almost an act of religious faith to keep re-affirming how well the system works. (despite the laws of physics being turned upside down :) edit again: well they are not of course, these systems do conform to the laws of physics, that's why they don't work ))	Terry Porritt (14)
1356874	2013-10-23 21:19:00	Then two marvellous things happen, firstly there is now no warm air to cool on the windows...ergo no condensation, no mould and your house is as dry as the outside air. This is really what they're for. They're not a heating/cooling system in the way aircon or a heat pump is, they're simply to help reduce the issues with things as Terry points out. And if that's what you're after, they really do work. If you're after some sort of climate control, that's not these products.	inphinity (7274)
1356875	2013-10-23 21:32:00	As a stop-gap measure to equal the effects until your new singing, dancing, expensive system can be installed, you could leave a door or window, maybe several, open for most of the time. This also works in power cuts as a backup to ensure you continue to receive the benefits. Keep the Faith! People who insulate their homes are suckers. LOL. ;)	R2x1 (4628)
1356876	2013-10-23 21:59:00	These systems do actually perform as the hype says, more or less. They are good at bringing in outside air via the roof space or directly, ie ventilation, until the inside temperature equals the outside air temperature, especially on a cold damp winter morning. Then two marvellous things happen, firstly there is now no warm air to cool on the windows...ergo no condensation, no mould and your house is as dry as the outside air. Secondly since the inside temperature equals the outside temperature there can be no heat flow (as mentioned earlier for the ceilings) either in or out...ergo, there is no need for wall, ceiling or underfloor insulation. Of course when someone has spent $3k-$5k having it installed then it is a human characteristic not to admit to having bought a lemon, indeed it becomes almost an act of religious faith to keep re-affirming how well the system works. (despite the laws of physics being turned upside down :) edit again: well they are not of course, these systems do conform to the laws of physics, that's why they don't work )) open all the windows? caveat emptor	Mirddes (10)
1356877	2013-10-23 23:29:00	This is really what they're for. They're not a heating/cooling system in the way aircon or a heat pump is, they're simply to help reduce the issues with things as Terry points out. And if that's what you're after, they really do work. If you're after some sort of climate control, that's not these products. Agreed. They show Marc Ellis on the roof cooking a BBQ saying "Yeah lets harness the Sun to heat your home" ... Errm on a warm day your home will be heated anyways, it's on a cold day, or at night, when you want it heated, and by then the suns gone and the roof temperature drops rapidly. No if you use it instead to keep your home dry, we have no mould or condensation etc, then yeah it's great, but it'll never be a "heater" like a Heat Pump is.	Chilling_Silence (9)
1356878	2013-10-24 02:26:00	firstly there is now no warm air to cool on the windows...ergo no condensation, no mould and your house is as dry as the outside air. Secondly since the inside temperature equals the outside temperature there can be no heat flow (as mentioned earlier for the ceilings) either in or out...ergo, there is no need for wall, ceiling or underfloor insulation. Hmmm. I thought it was because you had stuffed every crevice up tight, sealed the floor, ceiling, shut all the windows and therefore condensation filled the entire house so you then needed a machine to move air around. I find we don't have condensation anyway....we do have a fair amount of insulation although not the underfloor stuff, and we open windows often. Actually you could say, now and then we close one or two. Works well. But as R2x1 says, I lack faith. :-)	pctek (84)
1 2