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Montering af decentral ventilation

Montering af decentral ventilation

Almost all decentralized ventilation with and without heat recovery takes place by drilling a hole in the outer wall, installing a pipe and placing the ventilation system inside the pipe. There are therefore no pipes to be routed around your house/apartment and therefore decentralized ventilation systems are particularly suitable for older houses that were not born with a ventilation system with heat recovery .

It sounds very easy, but there are a number of things that can go wrong and something you would prefer to avoid. Let’s try to go through the most important things for installing decentralized ventilation.

Why do the Danes choose us to install their decentralized ventilation systems?

For many years, we have been the company that has both installed and sold the most decentralized ventilation systems . We are because we deliver the best quality at the cheapest price.

How to get the best quality?

There are a number of steps that must be completed well to achieve the best quality.

Counselling

It is important to identify what problems you and your house have.

Problems from the house and surroundings

The most common problems houses in Denmark originate from:

These are all issues that need to be resolved as soon as possible. Ventilation can either solve the problem or is part of the solution. We have been renovating basements for over 20 years and therefore know how to solve these problems under difficult conditions.

Problems from using the house

Your family’s behavior can also cause problems. The most common are:

  • Moisture: Cooking, drying clothes and bathing etc.
  • CO2: All humans and animals emit CO2 . If the concentration becomes too great, it causes a headache. This often happens with many people and animals in a small area with poor ventilation (living rooms, rooms and bedrooms).
  • Toxic fumes: They come from paint , new furniture, plastic, clothes, building materials and much more.
  • Smells: Cooking, plants, animals and people etc. secrete odors that are not always pleasant.

These issues matter a lot to how well people like to be in a house. We can sense odors and moisture immediately. Where does CO2 give you a headache when the concentration gets too high and most people get sick from a lower CO2 concentration than the one they get a headache from.
The toxic fumes can also give you a headache and an upset stomach at very high concentrations, but the main effect is the long-term effects on health .

Noise problems

Customers are generally concerned and have questions about:

  • How noisy are the fans indoors?
  • How noisy are the fans outside?
  • How much noise comes through the fans from the outside in?

These are all questions that are very difficult to answer in general. Not only because, when you give as precise an answer as possible, there are always some who can measure something worse. That is why we stick to personal guidance, where you can take into account the location of ventilation, use of the rooms and where external noise sources come from, etc.

However, we can say that people do not experience significant inconvenience from the fan making noise outdoors and noise coming in from the outside. However, there can be inconvenience if you choose to install too few fans and therefore have to run them at too high a level, which makes more noise. No one complains about having too many fans installed.

Location and number of fans

The big question that the vast majority of our customers have is where the optimal location of the ventilation should be and how many fans they need.

The only thing you can see of the decentralized ventilation with heat recovery is the storm screen. It costs a little more to get a colored storm screen, but it looks better in many cases.

Det er der selvfølgelig ikke noget entydig svar på, men der er nogle løsninger, der er meget bedre end andre og der er en række faktorer, der er vigtig at tage med i betragtningen, når man besvare spørgsmålet:

  • Hvor meget luft skal man udskifte. Er det optimalt at udskifte luft kraftigere og dermed larme mere, når der ikke er nogen i de rum?
  • Hvor præcis kan montøren bore og kan de på forhånd måle om der er vandrør og ledninger i væggen(det kræver dyrt specialudstyr)?
  • Dilemmaer: Kan man ventilere lidt mere i et rum for at ventilere lidt mindre i et andet rum? Hvad betyder det at have ventilatoren til venstre eller til højre?
  • Hvad er vigtigst: At spare penge på at sætte færre ventilatorer op eller få mindre støj og spare på varmeudgifterne?

Hvis du ringer til os, så prøver vi efter bedste formåen, at guide dig til den bedste løsning til dit hus og præferencer.

Hvilken model ventilator er bedst og billigst?

Der kommer nye modeller til hele tiden, så de skifter tit til at være bedst. Fordi vi monterer og sælger så mange ventiler, så kan vi forhandle nogle gode priser til vores kunder. Det skifter gerne fra uge til uge, hvilken ventilator der er mest fordelagtig for de fleste. Der er dog tit special forhold, der gør nogle ventilatorer mere velegnet til nogle af vores kunder.
Mange af vores konkurrenter sælger kun et brand og få modeller. Det gør at de tit ikke få det brand og model der er mest optimalt til dem.

Information

Vi gør meget ud af at give gratis ekspertrådgivning per telefon, komme ud og levere ekspertrådgivning ved kunden, når der er behov for det og skrive artikler og lave video der forklarer og løser mange af problemerne.
Det er selvfølgelig ikke gratis, men da en meget stor del af dem der besøger vores site vælger at købe i vores shop og/eller får monteret deres ventilatorer af os, så kan vi bruge vores marketings penge på at rådgive og derved forhindre dig og andre i at få lavet forkerte løsninger.

Montering

For at få en optimal ventilationsløsning er der mange ting der skal være i orden.

Støv og oprydning

Vi lægger stor vægt på at efterlade ingen eller næsten igen spor efter vi har været der. Det gør vi ved at dække grundigt af, bore udefra og gerne uden brug af vand. Det efterlader gerne lidt borestøv udvendigt, som vi ikke får med ved vores afdækning og efterfølgende fejning/støvsugning. Vi har selvfølgelig også støvsuger på vores boremaskiner, hvor det er muligt.

De af vores kunder, der har benyttet andre montører, fortæller at de ikke forstår, at de spare 10 minutters afdækning, som så giver dem 20 timers rengøring. Mange montører har heller ikke måleudstyr til at kunne placerer en meget præcis boring indendørs, når man starter udendørs. Derfor er de nødt til at bore indefra og ud. Det giver meget mere støv indendørs end at bore udefra og ind, samt forsegle der hvor hullet kommer ind af med plastik.

VIS PLASTIK INVENDIGT VED BORING

Opmåling

We have electronic measuring equipment that we place one unit indoors and then we can place the other unit outdoors. Thereby we can determine exactly where the hole comes indoors when we live outside and hit our airtight cover indoors.
It is also important that the hole has the right slope.
Many walls contain water pipes and wires. We measure for that, of course, so we don’t hit them.

SHOW MEASURING EQUIPMENT
It often doesn’t go wrong if you don’t check for hidden pipes and wires, but when you do, it has major consequences.
Of course, it is also important that the location fits the surroundings, where there are many factors that must be taken into account.

Boring

When you have to drill a large hole in concrete, iron reinforcement, granite and brick, etc., where decentralized ventilation is to be installed, it often requires special tools and many years of experience. The consequences of mistakes are great and we will only experience them very rarely.


If you are good at drilling, you can also get closer to the ceiling in a basement, between e.g. pipes and come out through tiles in a bathroom.
In quite a few cases, minor damage and clean-up is achieved by not using water cooling and in some cases holding the drill by hand.
We have many different diamond drills with us, because even though we have several decades of experience, e.g. the stones in the concrete mean that one drill cannot get through, where another does much better. It is not unusual for us to try 4 drills before we find the right one.

Installation of the fan

The installation of a fan with heat recovery requires that it be located in a pipe with a slope out of it, so that the condensed water flows out and not into the house.
The individual parts must then be assembled inside the tube, a storm screen must be installed outdoors and the control panel installed indoors for most models.


The electrical connection must be approved by an authorized electrician so that it is legal and the warranty for the fan is maintained.
There are a number of adjustments to ensure that the function is optimal and that it sits and looks as it should.

Special solutions

If you ask many of our competitors, you cannot set up decentralized ventilation with heat recovery below ground level. We have done this successfully for many years. We have imported some small light boxes with drains at the bottom which solve the problem.


Of course, we also have other proven solutions for the problems that you find in Danish houses.

Setting and instruction

Depending on the brand and model, there are different options for setting and optimizing operation. Some systems can synchronize the inlet and outlet intervals. The models with wifi have an app where you can set the ventilation from your mobile when you have access to the internet. You can make weekly programs where you ventilate when you need it and make any extra basic ventilation when you are not at home. You can make the ventilation system quiet or make extra noise when, for example, is X factor.
We set up the ventilation system, show you how it works and give you advice on the most optimal operation.

Experience

We know very well that you do not order our service so that we have to come to make noise, dust and pleasant chats over an extended period.

We try and succeed in the vast majority of cases to:

  • Will come and complete the work the same day
  • Virtually no dust indoors and very limited outdoors
  • We have optimized the location according to your home and preferences
  • We recommend the best fan for you and your house
  • We install the fan as it should be installed and maintain the warranty
  • We set the fan and instruct you

If you want to know more about which solution is best for you, you are always welcome to call us. You can also fill in the contact form and we will call you.

The only thing you can see of the decentralized ventilation with heat recovery is the storm screen. It costs a little more to get a colored storm screen, but it looks better in many cases. Here are some examples from past years:

Most people are interested in finding out what the interior of decentralized ventilation with heat recovery will look like. It of course depends on how the wall looks beforehand and which fan you choose. Many fans have a square control panel, but there are also models that are completely hidden, so that you only see a supply valve (just like central ventilation that is hidden in the wall or ceiling).

Here are some examples from past years:

Some of our customers have basements that are so low that it is not possible to drill straight through. That is why we import specially developed light boxes for ventilation. They make it possible to set up decentralized ventilation with heat recovery below ground level.

We have helped thousands of Danish families and organizations to get decentralized ventilation with heat recovery. If you have any questions or want us to help you too, you are very welcome to call 70 50 50 51.

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