customer testimonials


Signe Due

"The best little thing I've ever bought"

signedue“I got a SolarVenti 14 installed six months ago, in my cottage, and I'm really excited. The humid air has completely disappeared while providing plenty of free heat. From 11am to 6pm, there is a temperature difference between 20 degrees inside and out, while the air is delightfully fresh. I always leave the fan at maximum because I love the fresh air. The sound of it is low, and it is also a very soft and even sound that you do not notice, and which also comes from the farthest room of the house. Before I bought it, I was given extremely thorough instructions on where to install it in the house, and the explanation that the stove at the opposite end of the house should be an exhaust duct. All the staff are really friendly and very knowledgeable. My fuel consumption is probably reduced by 20 - 40 percent, depending on how much the sun shines. But the best thing about it is to get warm without touching a finger. You can be away for a whole day and still come home to a nice cozy house. I have a new, eco-friendly stove and I can see that the combustion in it has become cleaner because the intake air is much drier. I got a carpenter to install SolarVenti, because I knew I couldn't figure it out myself. Even after a week of all-day rain, the air is still dry. It has made a huge difference to the whole experience, and of course it improves the durability of the house. As I thought it through, I found that it is actually the best little thing I've ever bought. "

You may post the review on your website.

You really deserve huge praise.



"Our holiday resort WALDORADO in Spain"

Ladies and Gentlemen, I have just published the following review at Facebook: Our holiday resort WALDORADO in Spain is ventilated with the help of SolarVenti, heated and cooled in summer. The system exceeds our expectations: the room climate of the studios is always very pleasant, in winter warm and also the basement is dry. Since the house is directly on the Mediterranean, we had so far always a very high humidity and electrical devices did not last long. The system runs automatically and works incredibly reliably.
I particularly appreciate the system's simple structure and principle. For solar regions such an "air heating" is always appropriate. I will report on the cooling effect. Many thanks to the inventors.

Alexander von Waldow https://www.facebook.com/pg/solarventi.de/reviews/?ref=page_internal

I've just been on site and was now able to convince myself of the functionality of the system. MfG v.Waldow


Orla J

"When I put my underpants on in the morning, they are dry"

sv20 buena vista Hi Tom, I'm very happy with my SolarVenti, it's one of the best investments I've made for a long time. When I put my underpants on in the morning, they are dry ... super happy.  Orla, J. Mijas, Málaga


Daniel Sanchez

"Very happy"

SV7 basement Hi, everything is going well, it works great and gets to lower the humidity every day that there is sun, so great, very happy. Of course, it's not heating but I already knew that as it is one of the smaller models. Daniel Sanchez Rasmussen, Torremolinos, Málaga



"A BIG change"

laura fuengirolaAttic: Hello Tom, first I want to wish you a happy new year and most important, great health!
Second I want to tell you that I am very happy as how everything is in my house now, and the maximum humidity that I have with bad days and wet clothes hanging is 60%. But I usually have it around 45-50%. It's a big change, if you remember I used to have almost 80%!  Laura, Fuengirola, Málaga


Tom N.
Spain / Finland

"I must say it is one of the best investments I have ever made"

Calahonda01 Townhouse: Tom - the Solarventi has worked brilliantly and from my sensors I saw that when the season changed from dry to humid, the humidity of the house raised to 70% and in mid-October when we started the SolarVenti facing the winter, the humidity in the house fell to 60% in a week. I must say it is one of the best investments I have ever made. Tom N., Calahonda, Málaga (Finland)


Jan Björkrudh

"This is the best decision I ever made"

foto 21 We installed SolarVenti in our house in Spain in the autumn of 2013.
Nobody in our family has since the SolarVenti installation been cold and the moisture we used to have is gone.
Now we have heating during the winter months and there is always a nice dry climate inside.
SolarVenti has served perfectly as our source of heat during the winter.
I bought another apartment and I intend to install another SolarVenti panel in the future. Jan Björkrudh, Nueva Andalucía


Antonio V. Gutierrez

"The result is absolutely amazing"

I have a recently installed SV30 and the result is amazing (we had a serious humidity, up to 96 percent in two rooms in the Winter time).
The house where we live is poorly insulated and the gap between the ceiling and the roof has no ventilation, therefore the house accumulates moisture in the winter and warmth at summertime.
Kind regards
Antonio V. Gutierrez


Olaf West

"Soendervig summer house, SV30"

Hi Thomas
I bought an SV30 from you a couple of years ago. I have just had some craftsmen doing various jobs on my summer house. They worked there in December and January and were very surprised by the fresh air in the house. No stale old summer house smell. I, myself, have now worked there for several weekends. The sky has been clear most of the time and the SV30 has blown fresh air with a temperature of 46ºC into the house when the outdoor temperature was 3ºC, that is an increase of more that 40ºC.
We have shut off the heaters on the days when the sun was shining.
Kind regards, Olaf West, summer house in Soendervig.


Egil Taulbjerg

"The power bill from NOE was halved"

Not only did the Taulbjerg family halve their power bill from NOE in their summer house in Gjellerodde after having installed an SV30. The family also had the indoor climate improved both summer and winter. The surplus heating in winter is led into a shed where the tools have never been better: Egil Taulbjerg from Holstebro says that his family has used electric heating in the summer house since 1966. The total power bill has normally been € 1,500 – € 1,600 a year in the 110 m2 summer house. Half of the power bill covered the amount spent in order to keep the house frost free during the winter season.
- We have heated the house with electricity all year round. Even though we haven’t used the house very much during the winter period. With the SV30 we still heat the house all year round. Even in the very cold period we have almost free hands to decide the temperature of the house just by using the solar heating. Even during the coldest period this winter there was 8ºC. And we were still repaid € 770 that is half of the total power bill. Such a reduction means that the about € 2,200 paid for the SV will be returned in three years.
And he adds that if there is a very cold winter with long periods without any sun the temperature in the house may fall to a few degrees Celsius – but never below zero. Always nice to move into.
The family, of course, is more than happy to save money. But for them it is just as important to be welcomed by a warm and dry house even if the temperature is 30ºC below zero outside.
– We feel that the indoor climate has improved. Fresh air is blown into the house from outside. Our summer house is made of wood, and I believe that the heat inside helps drawing out moist from the wood. The result is that it will last longer, says Egil Taulbjerg.
The family is so satisfied with the system that they have installed two more. One in another summer house in Kollund and one in a hunting cottage without power installations.


Per Callesen

"Damp basement"

Drying out a damp basement. For SolarVenti A/S (concerning the SV30)
A month has now passed since the installation, and encouraged by several periods of fine sunshine I wish to report that it runs perfectly and to my complete satisfaction. You should not hesitate to recommend such systems for the venting of other basements – even though, of course, a suitable place facing south and an inlet of the air down into the basement will be needed. I have recommended the project to all those who have cared to listen. Even now when there is only 0-10º outside the basement gets quite warm when the sun shines and the drying out effect is obvious. I won’t need the usual heating in the basement this summer and at the same time it is getting more and more dry…The air is sucked in through the chimney which was used for a furnace 10 years ago. As expected there was a slight smell at the beginning but after a week it stopped. The air now seems quite fresh. So once again – our best recommendations and thank you for all the fine work you have done with a quality product.
Kind regards, Per Callesen C.F. Richsvej 65 d. 28/3 2005


Torben Anskjaer


Ornum: Dear Hans Joergen. The solar collector has now been mounted on the house and it appears to be working fine. As soon as the tiniest sunbeam peeps through the fan starts. I’m curious to see the effect during the winter months. I feel inclined to compliment you on the high quality materials and fittings used – they are simply superb. I used to work with glass-aluminium facades so I know the components!
I enclose a couple of pictures.
Kind regards, Torben Anskjaer, Oct. 2004


Jens Lassen

"Jens Lassen"

Jens Lassen: I can only encourage others to have an air based solar collector (SolarVenti) installed.
The benefits are so many!
Kind regards, Jens Lassen


Claus J, Marliese W. Laerkevaenget

"Wooden summer house in a plantation"

We own a wooden summer house located in a plantation. The optimal sunlight is ‘only’ 4-5 hours a day, but in spite of this we have got at ‘new’ house. We started out with huge damp problems, water on the inside of the windows, moist bed linen, stale air even though this is a non-smoking house. All that is history! The system has now run for 10 years without any problems. The indoor temperature is moderately increased, but most importantly: all the damp has gone, and even though the house is left unused for several months it smells fresh and nice! We have also observed that we have been able to keep the house free of frost during several winter periods without the supply of heat! At least that is our experience…
Kind regards, Claus J, Marliese W. Laerkevaenget


Torben Lynnerup


Caravan with SV3
Hi SolarVenti… We bought an SV3 solar collector for our caravan just before easter. We have now installed it by the kind assistance of your customer service. See the enclosed photos. The air passes through the cooker hood, so I avoided drilling an extra hole in the caravan. It runs just perfectly and supplies fresh warm air into our caravan. On a sunny day we have measured 22ºC and 45% air humidity in the van. Obviously, we have not tried it during the winter season but we reckon we don’t need the damp removal bags and the pine branches in winter anymore. We are so thrilled that we would like to order an SV14 for our summer house... Please let us have the solar collector before the end of May as we will start laying our new roof then.
Kind regards, Torben Lynnerup, Aalborg, 04.05.2005


Ole Iversen


In week 39 I ordered an air based solar collector incl. solar cell and fans. The delivery was prompt only 3 days later and during the weekend 30/09-00 I mounted the system – easily and simply. The system was installed on the roof of a small annex from 1942 which is situated adjacent to our home. The two store annex is 35 m2 with an open staircase up to the top storey. The air intake is led down to the ground floor in the corner as far off from the staircase as possible. The annex is used by my daughter and heated by a combination of electric heating and wood stove. The insulation is OK but there are no windows facing north and not much light/warmth coming in from the east or west. So the climate is not optimal, but even now when the system has been working for about 10 days only, we notice a significant improvement of the indoor climate. The system does not produce any noteworthy heating supplement but the tempered air renewal is certainly worth the money.
Kind regards, Ole Iversen


J. Balk Olsen


J. Balk Olsen, Fredriksberg writes in Politiken 22.11.97: .... I want to tell you how we got rid of damp in our summer house and at the same time avoided the typical the mouldy smell, the ‘summer house smell’, related to the problem. We own a summer house in Marielyst near Falster where we have had problems due to the high humidity in the area … I installed an air based solar collector… What makes it so brilliant is that the fan is powered by a separate solar cell so that air is only blown into the house when the sun shines making it possible for the warm air to absorb the damp inside the house. Both smell and damp have disappeared completely as the system runs both summer and winter. It has now been working for four years on free solar power. So it is a solution which I can warmly recommend


Valborg & Leo P. Larsen


We write to tell you how pleased we are with our solar heating system. We installed it in our summer house and will not do without it. The house is dry and smells fresh, and when we arrive there on a day during autumn or spring we clearly notice that the temperature is a couple of degrees higher inside the house than outside. So we only need a stick in the wood stove to get the house heated. Valborg praises it whenever she gets the chance, and she is happy that the furniture, linen and tableware are never damp. Even when we use the wood stove there is no condensation anywhere. Of course you don’t remember us, because we had the system installed many years ago. We were among the first, I believe, so it is many years ago. I suppose you do not notice how time passes when everything runs smoothly. We have not touched the system since we mounted it. We read that you have developed the system further and therefore we felt inclined to tell you how happy we are with our antiquity. If anybody in the Fjellerup area would like to see it they shall be welcome to drop in.
Kind regards, Valborg og Leo P. Larsen Hinnerup, Mid Aug. 2005


Christian Brock


Christian Brock, Rugtoften 18, 6400 Soenderborg writes: For your information I want to tell you that it is the best investment I have made in my summer house. We use the house every weekend all year round and never arrive to a house filled with damp. If you need a reference in the area around Flensborg Fjord you may use my name.
The address of my summer house is: Agertoften, Brunsnaes, 6310 Broager.


S. Petersen & I. Knudsen

"2610 Roedovre"

Our SolarVenti has now run for a year, started in summer 2002, autumn, winter and now spring 2003. The SolarVenti works far better that we had expected. We used to hang up 4-5 moist removal bags in our 40 m2 house, but the house was still cold and damp in winter.

The SolarVenti has solved all our moist problems. It has given us a perfect indoor climate and removed the moldy smell of old summer house…
The installation can be done by almost anybody … Here in March we have added a ’free’ heating supplement to our other heat sources. We are so happy with this product that we consider buying one more for our guest cottage…

Kind regards, S. Petersen & I. Knudsen, Valhoejs Allé, 2610 Roedovre


J.P. Skov


It is impossible to praise your large system (SV14) enough. It has now run for three years to our complete satisfaction, and we are very pleased with it whenever we stay in our holiday home.
Kind regards,
J.P. Skov Jacob Appels Allé, Taarnby, Kastrup. 10.04.03


Lilli Larsen

"Log house"

We cannot but praise The SolarVenti. It is a fantastic invention. One year ago we bought a log house. We knew from the start that there were death watch beetles in the woodwork – they have disappeared completely – the house smells fresh and nice even after the winter. All cupboards and drawers have been kept open throughout the winter period. Even the bed linen smelled good!! It has been and still is a fantastic invention.
Many kind regards from Lilli Larsen, June 16, 2006.


Bent Eckert

"2100 Copenhaguen"

18.08.2004 ... I’m very satisfied with my SolarVenti.
The system meets my highest expectations. The indoor climate of my house is quite different now – no damp and no stale “summer house smell” – everything is just fresh.
Greetings from Bent Eckert, 2100 Copenhagen


Inge & Poul Hjorth


2xsv7 webWe are the happy owners of a summer house by the North Sea. We only use the house during the summer season.
Some years ago we had air valves made in all the rooms as the house smelt stuffy in spring. It helped a lot, but we were not completely satisfied.
Through a friend we learned about the dehumidification system from "SolarVenti". We drove up to SolarVenti. Looked at the system and bought two medium sized which we immediately installed in the summer house. Only 6 weeks passed before we noticed a great improvement of the indoor climate. We can only recommend the dehumidification system from SolarVent.
Best regards from Inge and Poul Hjorth, Soendervig, April 2003.


Lone Rise

"SV14 for roof mounting"

Rise sommerhDear Hans Joergen Christensen. Having purchased an SV14 for roof mounting on our 60 m2 summer house we now receive a welcome heating supplement – especially during the spring and autumn periods. At the same time the SV14 improves the indoor climate during the cold winter months when it supplies partial heating to the otherwise cold house and replaces the still air with fresh in a natural way. Indoor we measured the incoming air to be 24ºC when the outside temperature was only 0ºC! A pity that the knowledge of this air based solar collector is not more widespread as so many people could benefit from its qualities. It is a brilliant product which certainly lives up to all the promises made, and it is highly recommendable for many purposes.
Kind regards, Lone and Kurt Rise


Zoran Ogrinc

"SV14 for wall mounting"

slovenia 2015 Last autumn I installed a SolarVenti SV14 on my weekend house in the mountains (in a height of 920 m).
The effect is amazing.
Throughout the entire winter the temperature never dropped below 2˚ C - and now that it is spring the temperature in the house is permanently around 10-12˚ C  (6-8˚ C higher than during the same period last year). When we arrive in the weekend house and turn on the heat, a room temperature of 22˚ C is reached easily and fast. I am very satisfied with the product.
Zoran Ogrinc, Pohorje, Slovenia