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New Zealand Owned and Operated New Zealand Owned and Operated Blog

New Zealand Owned and Operated

29 August 2018

The game-changing Unovent® ventilation system was invented by an owner of Unovent Limited when he was looking for a less expensive, longer lasting and cheaper running ventilation for his own home. Being an engineer, John Wadsworth had an understanding of moisture control, air management, electronics and control systems. He was puzzled why

Simplicity and Automation Simplicity and Automation Blog

Simplicity and Automation

15 August 2018

Perhaps the greatest advantage of an Unovent® ventilation system is its simplicity. Many other ventilation systems are either: Uncontrolled - they simply take air from a ceiling space and blow it into the building without consideration to temperature or humidity; or Manually controlled- they require the home owner to set up and

Q Mastercard / Q Card Interest Free Q Mastercard / Q Card Interest Free Blog

Q Mastercard / Q Card Interest Free

8 March 2018

The cost and problems associated with living in a damp home are huge – much more than most people realise. The dampness is worse during winter when the humidity inside the dwelling is much higher because heaters are being run to keep the occupants warm. This results in ‘weeping windows’ and dampness in hidden corners where mould

PollenGuard - A New Innovation In Air Filtration PollenGuard - A New Innovation In Air Filtration Blog

PollenGuard - A New Innovation In Air Filtration

23 February 2018

According to the World Health Organisation, polluted urban air kills over 3 million people every year. But now there’s a scientifically proven, sustainable filter technology that traps particles and bacteria. Introducing HELIX™ Filter Media, manufactured using pure New Zealand wool. It has now been adapted for use in the Unovent®

Home Ventilation in humid periods Home Ventilation in humid periods Blog

Home Ventilation in humid periods

17 February 2018

The NZ government advisory organisation known as the Energy Efficiency and Conservation Authority (EECA) makes recommendation on its website in regard to Home Ventilation systems. While we hold other proven views regarding their claims that air in the ceiling / roof space is poor quality, they do have some other good advice. Our views regarding

Autumn Weather - time to take action Autumn Weather - time to take action Blog

Autumn Weather - time to take action

6 April 2017

Autumn is often the nicest time of the year. Here in New Zealand it’s usually warm with little rain or wind.  It’s the most popular time of the year for outdoor pursuits – meaning many people are away from their homes for long periods. Empty unventilated homes are prone to heating up during the day as a result of solar gain

Airing the home Airing the home Blog

Airing the home

10 March 2017

Warm moist weather is a difficult time for householders’ conscious of maintaining a healthy home. The daily temperatures make it attractive to open windows to cool the house – but the air entering the house may be moist, creating damp conditions perfect for mould and moisture to flourish. The rule of thumb is simple … if the

Poor Roof Ventilation Poor Roof Ventilation Blog

Poor Roof Ventilation

1 March 2017

There are many websites advising all houses should have ventilation in the roof space. Most of these sites are American or European and much of the information is of little value here in New Zealand. However, the one common theme that is relevant in NZ is that every house DOES need adequate ventilation into the roof/ceiling space. Over the

Ventilation System Not Working Mystery Ventilation System Not Working Mystery Blog

Ventilation System Not Working Mystery

26 January 2017

Here at Unovent we had a situation where a ventilation system simply didn't work. That didn't make sense as the Unovent system (or any other ventilation system) is simply a way of moving stale air out of a house and replacing it with fresh air ... just like opening the windows on a nice day. The elimination of moisture in the home is

Drying clothes inside Drying clothes inside Blog

Drying clothes inside

12 January 2017

Few people stop to consider what happens to the moisture in towels, clothes or other damp objects (pets) that are dried inside the house. Many people dry clothes indoors during the winter, on the radiators, in front of the fire or just on racks. But drying clothes indoors increases the amount of moisture in the air by 30 percent or more. This

Home Heating Home Heating Blog

Home Heating

6 December 2016

Insulation is very important for a healthy home. Insulation makes heating more effective and much less expensive. Every home should be insulated. Ventilation is also important. Fresh, dry air can be heated more efficiently and economically than stale, moist air that is created in the home by normal living. Heating is one of the 3 elements for a

What is Moisture? What is Moisture? Blog

What is Moisture?

22 November 2016

Moisture refers to the presence of a liquid, especially water. Small amounts of water may be found, for example, in the air (humidity), in foods, and in various commercial products. Moisture also refers to the amount of water vapour present in the air. This is the moisture that we are interested in dealing with to create a healthy home. Water is

All home ventilation systems do the same thing All home ventilation systems do the same thing Blog

All home ventilation systems do the same thing

8 November 2016

Most Unovent competitors are telling their potential customers that our Unovent must be inferior ... it must be because it costs so much less. We can imagine they are worried as many people are discovering they can have a Home Ventilation system that works perfectly and cost much less to run at half the price. Worried competitors make us happy,

The truth about our homes The truth about our homes Blog

The truth about our homes

25 October 2016

The majority of people in New Zealand live in unhealthy homes that may be shortening their lifespans. This results from research by credible organisations that have researched the subject. Children’s Commissioner Russell Wills says, “It is intolerable that we have 42,000 hospital admissions and 15 deaths a year for children with

Good advice from authoritative sources Good advice from authoritative sources Blog

Good advice from authoritative sources

6 October 2016

EECA Energywise states around 30 per cent of homes are damp and many houses in New Zealand have mould. Some other authorities suggest that figure is much higher in many parts of the country. It’s not just old homes or rental properties that suffer. Even new, well-insulated homes are often inadequately ventilated and soon develop moulds and

Dampness in our homes - there's more than you think! Dampness in our homes - there's more than you think! Blog

Dampness in our homes - there's more than you think!

21 September 2016

An Otago University study recently found a family of four can produce 34 litres of moisture a day through everyday tasks? That’s astonishing and above most people's expectation. Imagine taking 16 x 2 litre milk containers, filling them with water and spilling it all over your home. Moisture in the home is introduced by cooking,

Modern Homes require ventilation Modern Homes require ventilation Blog

Modern Homes require ventilation

7 September 2016

Contrary to advice often given, modern construction methods together with greatly improved building materials result in new homes being more air-tight with less ventilation than older homes. These homes are closed up for longer periods than during past lifestyles. Longer working hours, noise, privacy issues and concerns regarding home security,

Consumer NZ says ...

22 August 2016

Consumer NZ have put together the following useful information on the source of moisture in your home including tips to keep your home well ventilated. Unovent Limited says … The new Unovent forced ventilation system recently introduced is a game-changer. It is now possible to install an inexpensive ventilation

Homestar Independent Rating Tool for NZ Homes Homestar Independent Rating Tool for NZ Homes Blog

Homestar Independent Rating Tool for NZ Homes

25 July 2016

Homestar is an independent rating tool that certifies the health, efficiency and sustainability of New Zealand homes. It’s been around since 2010 and is a quality-assurance mark – a bit like Energy Star for appliances, or the WELS scheme for water efficiency.  The NZ Building Code includes rules that add up to 4 Homestar points

Free Finance Up To 12 Months Free Finance Up To 12 Months Blog

Free Finance Up To 12 Months

11 July 2016

UNOVENT Limited can now offer customers an interest free purchase option through Q Card – for up to 12 months and up to $5,000. Q Card is a credit card that gives Q Cardholders a minimum of 3 months no payments and no interest when they use their card for in-store and online purchases. Today, Q Card has a prominent place in the wallets of

Home WOF likely for all housing Home WOF likely for all housing Blog

Home WOF likely for all housing

7 July 2016

A WOF is being introduced for all rental property and is likely for all social housing.  A trial has been running in two regions and early reports are that an improved standard that results in healthier homes is urgently required. Once the benefits of adequate insulation, ventilation and heating are proven it’s likely all homes will

Huge expense to rectify mould damage Huge expense to rectify mould damage Blog

Huge expense to rectify mould damage

23 June 2016

Recently Radio NZ recently ran a story about a State house that cost $20,000 to repair as a result of mould. That may sound horrific but in fact is quite typical of the costs to remedy the effects of a damp mouldy property. Any home that has ‘crying windows’ during winter will almost certainly be experiencing  further damage in

Airflow through the Unovent fan Airflow through the Unovent fan Blog

Airflow through the Unovent fan

9 June 2016

A number of Unovent ducted solution competitors are advising their potential customers that the Unovent system has inadequate airflow, both for the homes and in comparison to their own competing system. They are misleading those who genuinely wish to have a healthy home at an affordable price with low running costs. The issue is actually about a

Calculate the number of Unovent fans required Calculate the number of Unovent fans required Blog

Calculate the number of Unovent fans required

26 May 2016

Below are the typical/average measurements for room spaces in a house. To calculate the cubic volume multiply the floor area by the ceiling height (eg. 2.40m) Single or Standard Bedroom In newer homes, the typical size of a single bedroom is 3.0 metres x 3.5 metres = 10.5 square metres.  Air volume 25 cubic metres (1 Unovent) In

Renters much worse off than owners Renters much worse off than owners Blog

Renters much worse off than owners

12 May 2016

Statistics New Zealand has found that people who rent a home live in far worse conditions than people who buy one. Other disadvantaged people in poor housing were people renting in groups, single-parent families, younger adults and Māori and Pacific people. The problem can be easily solved by ensuring every home is insulated and has adequate

School Project discovers high percentage of unhealthy homes School Project discovers high percentage of unhealthy homes Blog

School Project discovers high percentage of unhealthy homes

28 April 2016

Late last year Manurewa High School and Rongomai Primary conducted a survey among its students to gain an understanding regarding the amount of mould in their homes. Mould is an indicator of an unhealthy home. The results were astounding.  14 different types of mould were discovered in the students’ homes and most had the right

Mould Census could give useful housing data Mould Census could give useful housing data Blog

Mould Census could give useful housing data

14 April 2016

It has been reported in the news media that Statistics NZ will be undertaking a test census asking if homes contain mould.  This follows an informal project undertaken by Manurewa High School and Rongomai Primary asking how many students’ homes had mould. The answer was quite shocking … 78%. The census response will provide a

Oxygen for solid fuel fireplaces Oxygen for solid fuel fireplaces Blog

Oxygen for solid fuel fireplaces

30 March 2016

As homes become more insulated and sealed to be energy efficient, few have given consideration to those that have solid fuel and gas fireplaces.  To burn effectively a fire needs a source of fresh air (oxygen) to provide combustion. Some fires have a built in air intake from outside to provide fresh air. However, it’s likely the

Home Ventilation Control ... the UNOBRAIN Home Ventilation Control ... the UNOBRAIN Blog

Home Ventilation Control ... the UNOBRAIN

17 March 2016

For many years, home ventilation systems were left running 24/7 (which was a very expensive ventilation solution) or turned on and when the home owner became conscious of moisture (eg. crying windows). As neither of these arrangements was suitable, ventilation manufacturers developed control systems. These tend to be based on preselected times or

Roof Space Fires Roof Space Fires Blog

Roof Space Fires

2 March 2016

Recently it was reported in the news media that a home in Gore suffered fire damage as a result of the ventilation system installed in the ceiling space.  The ventilation system was a traditional 240 volt ducted system typical of hundreds of thousands fitted in homes around the world. The unsubstantiated reports indicate the temperature

Stop mould and condensation Stop mould and condensation Blog

Stop mould and condensation

15 February 2016

Here at Unovent we are always trying to improve our understanding of the physics that surround moisture problems in the home. While trolling the internet we found a good video clip by a British organisation that we consider explains very well the reason we suffer mould and mildew in our homes.  It also offers a number of good tips to be rid

Summer moisture in the home Summer moisture in the home Blog

Summer moisture in the home

3 February 2016

The El Niño weather conditions during past weeks have created (wet) sticky and humid temperatures over most of the country. It's interesting to reflect on the effect this has inside our homes and how it relates to home ventilation systems. Our homes are surrounded by air (outside) which is always eventually the source of air brought

Good ventilation - it's the smart choice Good ventilation - it's the smart choice Blog

Good ventilation - it's the smart choice

25 January 2016

"With good ventilation, your home will be drier, healthier and more comfortable.  Ventilation is about helping air to circulate in your home.  It allows moisture and airborne pollutants to escape, and fresh, clean air to be drawn into your home.  Well-designed ventilation will provide cooling in summer.  In winter,

The difference between Home Ventilation Systems The difference between Home Ventilation Systems Blog

The difference between Home Ventilation Systems

6 January 2016

A quick online search will find lots of questions and debate about the merits of different types of Home Ventilation Systems. There are various systems but the two main types in New Zealand are … Positive pressure or roof cavity ventilation (PPVS) and balanced pressure heat recovery ventilation (BPVS).  All home ventilation systems use

Summer is best for drying bedding Summer is best for drying bedding Blog

Summer is best for drying bedding

16 December 2015

A dry home is a healthier home – most people know that. Damp homes mean damp curtains, floor coverings, fabric furniture, clothes and especially bedding. Some beds contain many litres of water absorbed from the air, perspiration and simply breathing while asleep. During winter it is very expensive to use dehumidifiers and heaters to

Unovent - Delivery Anywhere Unovent - Delivery Anywhere Blog

Unovent - Delivery Anywhere

1 December 2015

Anyone in a Kiwi business will be aware that New Zealand is a long thin country – with many inherent problems for both business and their customers. One of these problems is the cost and time of freighting product around the country. That body of water known as Cook Strait is said to be among the most expensive in the world. Unovent has a

Roof Space Air Quality - Filters Roof Space Air Quality - Filters Blog

Roof Space Air Quality - Filters

23 November 2015

A common perception is that the air in the roof space of a home is very dusty. It’s also one of the most common questions we are asked  – “Won’t the air in the roof cavity be dusty and unhealthy?" The short answer is no. The roof space of houses are designed to be well ventilated to the outside air. In fact,

The dreaded pollen season The dreaded pollen season Blog

The dreaded pollen season

10 November 2015

Many people suffer from pollen allergy – it’s suggested one third of the population suffers from Seasonal Allergic Rhino Conjunctivitis – more commonly known as hay fever.  There are numerous plants that create hay fever symptoms and most are blown around the country by the wind. Pollen is in the air all year round The

Moisture in the home - it's there all year round Moisture in the home - it's there all year round Blog

Moisture in the home - it's there all year round

27 October 2015

The existence of moisture in the home is well known by scientists but little understood by homeowners. The Energy Efficiency and Conservation Authority (EECA) advise 30% of New Zealand homes are damp and many more suffer from mould and mildew. It’s accepted everyone living in a home generates moisture but not widely understood this

See us Home Shows around the country See us Home Shows around the country Blog

See us Home Shows around the country

6 May 2015

See Unovent on Showerdome stands at Homes Shows around New Zealand where you'll meet our distributors or the inventor of Unovent - John Wadsworth. John wanted a ventilation system for his own home, but was unwilling to spend over $4,000 on the systems that were available in the market. As a former automation control engineer with a

A cost revolution in home ventilation A cost revolution in home ventilation Blog

A cost revolution in home ventilation

1 May 2015

The Unovent moisture reduction system is a game changer. Home ventilation systems typically comprise of a central fan in the roof-cavity which distributes air into bedrooms and living rooms via a network of ducting and is usually installed by a specialist.  Depending on the number of rooms, ducted systems may cost from $2000 to $6000. The