The KWH150 Whole house ventilation unit is perfect for controlling condensation and humidity in your home. The unit is installed in the loft and provides continuous ventilation throughout the house.
Unlike conventional extractor fans, which suck out and waste expensively produced heat, the KairTM Loft Input Ventilator utilises heat that exists in lofts through solar gain and simultaneously circulates existing heated air that has raised to ceiling height, heat which also helps increase the temperature of the loft space air supply to the unit.
The continuous air movement throughout the property creates surface evaporation of moisture contained in the building fabric. This in turn, creates a drying out process, which means that there will be less hidden moisture to heat up increasing efficiency savings.
KairTM KWH150 Loft Input Ventilators consume less than a 60 Watt light bulb when in boost mode and less than a 40 Watt bulb when on background trickle.
Option: 150mm Duct Heater Kit
Complete Kit Contents:
Included with ventilation unit:
|Alternative Product Code||KAIKWH150-ECO-LC|
|Product Category||Positive Pressure Units|
|Product Type||Loft PIV Unit|
|Product Group||Ventilation Fan|
|Spigot size (mm)||150|
|Power Min (Watts)||17|
|Power Max (Watts)||61|
|Decibel Rating (dB) - Low||44|
|Decibel Rating (dB) - Max||50|
|Packaged Weight (Kg)||5.4|
|Packaged Length (mm)||410|
|Packaged Width (mm)||400|
|Packaged Height (mm)||333|
|Airflow Performance (l/s) - Low||40|
|Airflow Performance (l/s) - Med||46.1|
|Airflow Performance (l/s) - High||63.05|
|Airflow Performance (m³/h) - Low||144|
|Airflow Performance (m³/h) - Med||166|
|Airflow Performance (m³/h) - High||227|
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The Kair KWH150 has a more powerful motor and is designed to solve condensation problems generally. The unit is easy to fit and can beducted to outside fresh air if preferred (good when there is a dusty / dirty loft space).
The Kair unit also has a remote switch control (wired) as standard giving the ability to manually control trickle / boost speeds without having to access the unit within the loft space. Having a more powerful motor its electrical running consumption is higher comparatively . As you say it does not have a heater.
Please also look at the reviews for the product on our website and also Amazon.
If you prefer the Envirovent unit, we can supply this, it currently is in our extended range of products and we can certainly price match, or possibly improve on price. It does have the benefit of the heater which is good if you have a 'cold' property generally, longer life filter and BBA certification.
Envirovent do also offer a more expensive unit (EVL-HW) which offers both a heater and remote control.If you would like to discuss in more detail, please call us on 020 8463 9696.
Is positive pressure ventilation suitable for bathrooms as we have a problem with condensation not helped by two teenagers spending ages in the shower, leaving it like a sauna. I would appreciate your ideas on solving this problem. Many thanks Ken
Thank you for your question. There is a few options for you. The unit you are looking at can be used for your application. This unit use's the air in loft (if well ventilated) and filters it into the property this unit does not have a heater but can be purchased separately. Product code QS54353. Your 2nd option is the nuaire heat positive pressure unit this works as above and has a heater built in. product code.QS10002. And the 3rd option is our single room heat recovery unit hrv150. product code QS2838. This unit is fitted on an external wall and has a boost and trickle mode no ducting required. All the information on this and the 2 options are on our web site.
If you need any further help please do not hesitate to contact me on 0208 463 9683
Hi I have a cold loft, lots of condensation and mould in bathroom due to kids using shower to long. Have two ordinary 4 inch extractors but not working... can i use this for my bathroom and install extract grill in this room vented from loft space . Or does this unit need to vent for complete house say from hallway.
This unit is generally designed to bring air in from the loft to force condensation out of the building through existing gaps, trickle vents, and extractor fans. This is known as 'Positive Pressure' or 'Positive Input' ventilation. It would normally be fitted in the loft with a diffuser in the hallway or another central area.
The unit can however be installed 'the other way around' to extract air out of a room rather than supplying air. This would be considered as a non-standard installation but it is something that we and our clients have done before on various occassion - For instance for heat and dust extraction purposes.
If you can email me some further details about your plans and your requirements I would be more than happy to try and find the perfect solution for your situation.
Hello. My football club recently built an new training gym. The gym is airtight in design and we have now discovered that condensation is forming on the trainings bars which is obvioiusly a problem. Can you recommend a unit that would resolve the problem? The building does not have a loft.
Thank you for your question. Could you give me a call on 0208 463 9683 as I would require a drawing of the gym so I can advise what unit what do you application as the unit you are looking at is design to be installed in a loft.
I have a 3 bed bungalow, with an L shaped mid centered hallway, however I have down lighters meaning i can not mount the unit as specified in the hall ceiling. My question is would the unit still function correctly if I had the output vent on a wall reasonably close to the ceiling (top of vent c.150mm from ceiling)? I would also in addition be contemplating mounting the fan box with and airing cupboard (for easy filter maintence) using ducting to connect the inlet to the roof space, would this be ok or could you suggest an alternative product?
hi there, i am thinking of having a decent extractor fan installed in our bathroom, but confused with this one and the other one (KAIR HEAT RECOVERY SILENT EXTRACTOR FAN - HUMIDITY/PULLCORD/NIGHT SENSOR/12V SELV - ANTI-CONDENSATION 6"/152MM CORE DRILL KHRV150/12RH), what is the difference between the two? can one replace the other somehow? thank you
Thank you for your question. The HRV150 is a Single Room heat recovery unit which extracts the moisture laden and replaces the air with fresh air from the outside. It has a boost and trickle mode so when the humidity is high it will go onto boost and when the humidity has dropped it will go onto trickle.
The KWH150 unit is a positive pressure unit which is fitted into a ventilated loft space which filters the air into the whole of the property.
Please give me a call on 0208 463 9683 and I will be happy to go through your requirements with you.
Am I eligible for Vat exemption,aged 80 and disabled?
There is a plastic baffle plate included in the diffuser packaging. Does this need to be fitted in all cases?
Hello. We recently moved in to a 3 bed bungallow. It is approximately 25 years old. We have learned that there is a history of mildew problems in the property. The bungalow has soffit vents all round and about 250 mm of roof insulation and 2 bathrooms and the kitchen have individual extractor fans which discharge outside the building. Our bedroom is at the back of the bungallow. One corner of the bedroom ceiling gets mildew and the room smells damp permanently. We recently returned from a fortnights holiday and the room stank of mildew yet there wasn't much visible on the ceiling. I bought a cheap humidity monitor and it is recording a maximum humidity reading during the night of 67. Back down to 55 during the day. so it's not excessive is it. one point worthy of note is that the rock wool insulation above the bedroom is tainted black which leads me to think that the humidy might be in the loft. Incidentally the boiler is a balanced flue and the out let is close to the sofit. The steam
hello does this device need a pipe fitted on the front or does it go in the loft as it is in the picture thankyou Rosalind Williamson
Thank you for your question and sorry for the late reply. Everything you need is included in the box. Please see below. The only item that needs to be purchased separately if you require it is the heater. The product code for this item is QS4353.
Complete Kit Contents:
Included with ventilation unit:
If I can help any further please do not hesitate to contact me on 0208 463 9683
Hi. Just ordered the KWH150 for,our bungalow. I'm clear on fitting the unit but am confused as to why I don't need the extra kit to externally vent it. Our lofty is quite cluttered but cool and a little draughty. Do I need to connect the top inlet to an external air source via the kit - https://www.i-sells.co.uk/vectaire-1?internal=footerLink. Thanks. Tim
Could this device connect to the lighting circuit or does it have to connect to the ring circuit.
We have a 1904 end of terrace 2 storey cottage. It was made into 2 flats some years ago (well before we lived here) and to make more room they took all the chimney breasts out. We have double glazing, cavity wall insulation front and back (but NOT on the side). During the winter we have so much condensation in the house that I can fill a karcher window vac most mornings from just the upstairs windows! The small front bedroom has real damp/mildew problems (despite us having had new windows, central heating and an air vent put in) and we have had a wet patch for the past few years(and I mean WET, not just damp!)at the top of the stairs at ceiling height, next to the bathroom (which also has an air vent in, tho we were advised by one of the builders to seal it shut because they thought that might be problem at the top of the stairs!). We have had numerous roofers/builders in and they say that the roof is fine and that they think that it is a condensation problem. We are hoping that one of your products can help! BUT we have a problem! During the winter our loft literally drips with condensation! Having spoken to our latest (and most trusted builder) he is going to put fascia vents in this week to try and get some more air circulating. My question is 1. Which unit would be best? 2. Would we have a problem in that if it is in the loft it will just circulate the damp/wet air from the loft making matters in the house worse!? We are literally at our wits end and have been let down so many times by builders who can\'t be bothered and don\'t want a small job! Any advice would be gratefully appreciated! Thank you :)
Further to my conversation with Mr Tucker earlier today, your description of the problems you are experiencing is very detailed and intrigues me. However, it also raises several questions that need addressing so please, when you and your husband have a few moments please call me on 07956 818138
Hi, I have the Wykamol whole house loft unit. It's about 5 years old. Even though it works fine, I haven't been able to use it in winter (when it's needed the most). This is because it blows in cold wind from the loft making the hallway and bedrooms very cold. This looks like it's exactly the same unit. Is there anything I can do to solve the cold air issue e.g. is there a cheap inline duct heater you sell? Also, do you sell these with the heater and how much for (if I wanted to replace it with one that has the heater built in)? If you could help with solutions and options that would be great. Thank you
Hi - what soffit kit can I use with this? I would only want to draw in external air as the loft is dusty and dirty. Many thanks
Hi, Do you still sell the duct heater for this unit? The product codes in previous questions no longer work. Also, where would the heater need to be fitted - in between the output defuser and the unit, or some other way?
I have a suspended timber floor with air bricks and am looking to mechanically assist the ventilation. Would this unit be suitable if placed under the floor and ducted out through one air brick - with the supply air coming from the other side of the floor area?
Hi. I have had my loft boarded out and insulated as a small workshop. The spotlights in the plaster are getting condensation on them and wondered if this unit would solve that issue (as well as the general condensation around the house)? I am also curious to know if it can be installed by myself or if a trained technician needs to do it. I have reasonable DIY skills but would struggle with plumbing etc. Many thanks
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