Forum Home
PC World Chat
Thread ID: 107967	2010-03-09 04:01:00	HRV system	Nomad (952)	PC World Chat

Post ID	Timestamp	Content	User
865256	2010-03-10 04:34:00	Neighbour has HRV that her landlord had installed in the house. She only uses a gas heater in the Winter normally. Her power bills went up and she still has to use the gas heater. She is on a benefit and can't always afford to pay the bills, so the landlord did her no favors by putting it in. He would have been better to install a heat pump I think. The HRV was a slightly cheaper option in his case but he is all for saving a dollar that one. So my neighbour has to put up with higher bills and no heating and the place still gets damp because of her gas heater! I must add also, that in the Summer, the HRV pumps warm air down from the ceiling and it becomes like an oven in there if she doesn't open all the doors and windows. LL :illogical	lakewoodlady (103)
865257	2010-03-10 04:39:00	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 . An HRV isn't a heating system, nor is it an air conditioner . It's main purpose is to reduce condensation, and reduce the amount of moisture in the air . ALso I beleive an HRV type of system only works properly if the whole house is done, as it relies on supposed pressure differences between indside and out, and the roof space . Otherwise havind a door open in the house could disrupt it . I do recall that one of these companies got in trouble a few years ago regarding how they were marketing the systems . From your folks requirements, a heat pump could be the best solution, as they are more energy efficient than a conventional heater . You may also be able to get a grant towards one .	robbyp (2751)
865258	2010-03-10 04:41:00	Neighbour has HRV that her landlord had installed in the house. She only uses a gas heater in the Winter normally. Her power bills went up and she still has to use the gas heater. She is on a benefit and can't always afford to pay the bills, so the landlord did her no favors by putting it in. He would have been better to install a heat pump I think. The HRV was a slightly cheaper option in his case but he is all for saving a dollar that one. So my neighbour has to put up with higher bills and no heating and the place still gets damp because of her gas heater! I must add also, that in the Summer, the HRV pumps warm air down from the ceiling and it becomes like an oven in there if she doesn't open all the doors and windows. LL :illogical SOunds like they have got a metal roof. Supposedly it works better for cooling at night, with a title roof.	robbyp (2751)
865259	2010-03-10 04:42:00	Ok my rant . The guy said our house is like a wet cardboard box and needs the HRV to suck that out . He said a heat pump was just a large fan heater, haha . He did say how does it feel to pay 60% less power bills? Do you want that or a $4,000 heat pump in the main lounge and one in each of the other rooms . He said that heat pumps doesn't dehumidify or clean the air . He did mention that if in winter it is 3 . 9 degrees when you wake up . The HRV system would bring it up to 16 degrees so you only need a fraction amount of heating to get it to 20 degrees . :D	Nomad (952)
865260	2010-03-10 04:43:00	An HRV isn't a heating system, nor is it an air conditioner. It's main purpose is to reduce condensation, and reduce the amount of moisture in the air. ALso I beleive an HRV type of system only works properly if the whole house is done, as it relies on supposed pressure differences between indside and out, and the roof space. Otherwise havind a door open in the house could disrupt it. I do recall that one of these companies got in trouble a few years ago regarding how they were marketing the systems. From your folks requirements, a heat pump could be the best solution, as they are more energy efficient than a conventional heater. You may also be able to get a grant towards one. Best thing I ever did was get a heatpump. Power bills went down in the Winter. I have it on Ac now and it is really nice. No more asthma due to humidity. Only wish is that I had it in the bedrooms too! LL :banana	lakewoodlady (103)
865261	2010-03-10 04:44:00	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. :) Yeah, but they haven't actually done any scientific testing. That article does also highlight that the ventilation system is a replacement for a dehumidifier, not a replacement for a heatpump. If they want to sell their mag, they should, and I am sure a lot of people woul;d be interested in the results.	robbyp (2751)
865262	2010-03-10 04:45:00	Addition, folks like the doors and windows open.	Nomad (952)
865263	2010-03-10 05:50:00	Neighbour has HRV that her landlord had installed in the house. She only uses a gas heater in the Winter normally. Her power bills went up and she still has to use the gas heater. She is on a benefit and can't always afford to pay the bills, so the landlord did her no favors by putting it in. He would have been better to install a heat pump I think. The HRV was a slightly cheaper option in his case but he is all for saving a dollar that one. So my neighbour has to put up with higher bills and no heating and the place still gets damp because of her gas heater! I must add also, that in the Summer, the HRV pumps warm air down from the ceiling and it becomes like an oven in there if she doesn't open all the doors and windows. LL :illogical Heating in the summer ? I would say your neighbour has it on the wrong setting for the summer. They have a heating mode and a cooling mode. In summer they bring the cool air down from the ceiling at night time and in the winter bring the warm air down. You have a panel in the wall to set them up. :)	Trev (427)
865264	2010-03-10 06:07:00	In summer they bring the cool air down from the ceiling at night time Because the cool air rises into the ceiling? Or is it cooler in the ceiling cavity ?, meaning that's where the cold air is in winter...which you then pump into your living area to keep warm? Wait, None of this makes sense, Its contradictory, best I read some slick marketing. In the meantime I'll keep the warm air in my house during winter by insulation, and dispel hot air during summer by ventilation, and the crap in the roof cavity can stay there.	Metla (12)
865265	2010-03-10 06:15:00	Why is it that the people who don't have these products whether HRV or Heatpumps etc degrade them without trying them out. I don't have a HRV system but know 2 people who have and are very happy with it. I do have a Heatpump and are very happy with it but could do with a bigger unit. I know at least 6 people with Heatpumps and are very happy with them also. :)	Trev (427)
1 2 3 4 5 6