4.9 / 5 | Based on 18 customer reviews
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| Shipping Method | Under £100* | Over £100* |
| Economy: 4 to 7 Days (Orders under £20 inc VAT) 4 to 7 Days (Orders over £20 inc VAT) |
£2.99 £4.99 |
FREE FREE |
| Courier: 2 to 4 Days (Interlink or TNT) |
£7.99 | FREE |
| Next Day: Next Working Day Delivery+ |
£24.00 |
£24.00 |
* Usually £200+vat
+ Order before noon for Next Working Day Delivery for items in stock
Please Note: Ducting tubes over 200mm in diameter and 3 metres in length may incur additional shipping charges.
See the full delivery information here: Full delivery information
| Product Type | Single Room HRV |
| Airflow Min (l/s) | 5.2 |
| Airflow Max (l/s) | 10.5 |
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Often copied - never bettered - look out for inferior copies... This unit eclipses the imitators.
Solving Mould, Damp and Condensation Problems
The Kair KHRV150/12RH Single Room Heat Recovery Ventilator is perfect for you if you are looking to solve a damp problem in one of your rooms. Such as your kitchen, bathroom, utility room, living room, lavatory, washroom, conservatories, office and bedroom.
Continuous ventilation in your home
This unit is perfectly suited to your needs as it automatically controls the humidity of your room for you, so you can relax knowing that it will take care of everything for you.
The unit also offers you continuous trickle ventilation, so it will constantly clean and purify the air you breathe. Continuous ventilation is the key in keeping your home mould free.
Free extra set of filters
Register your product within 14 days of purchase and you will receive and extra set of filters for FREE!
Reducing heating bills
The unit is highly energy efficient so it will help you save money on your heating bill. Up to 86% heat recovered from extracted air, means even in cold winter weather the incoming clean air will remain at almost the same room temperature.
Clean air for You and Your family
The unit is 100% completely safe for your to put in your bedroom or your child's bedroom since it has a very low voltage, keeping you and your family safe. By providing adequate ventilation the unit maintains the recommended humidity levels, preventing harmful bacteria being breathed in.
Installation of the K-HRV150 Unit
This unit can be installed using a 152mm core drill. Uses Phillips or Tamperproof Screws - Supplied in box with installation instructions. Required wall thicknesses is from 229mm (9inch) to 356mm (14inch); this is the standard for British homes. For full installation instructions and other important documentation, please have a look at the Related files section below.
Here are some more ways in which the unit can help you:
Please note that this unit is protected by system zero security screws. Either a tamperproof bit or tamperproof driver is required for installation. Standard cross-head screws are also included.
What other people who have Trusted the Kair KHRV150/12rh say about how it has Helped Improve Their Quality of Life:
"My wife's asthma has improved and I have been less prone to sneezing fits caused by dampness in the air. The flat has smelt fresher and less dank" Mr Wookey, London
"The best money I have ever spent" - Mr Brown, Bournemouth
Buy now to create your own success story!
| Heat Recovery Efficiency (Up to - %) | 86 |
| Humidistat | Yes |
| Pullcord | Yes |
| Continuous Running | Yes |
| Smart Control | Yes |
| SELV | Yes |
| Round System (mm) | 150 |
| Product Type | Single Room HRV |
| Diameter (mm) | 152 |
| Power Min (Watts) | 9 |
| Power Max (Watts) | 46 |
| Decibel Rating (dB) - Low | 21 |
| Decibel Rating (dB) - Max | 45 |
| Colour - Internal | White |
| Colour - External | Terracotta |
| Packaged Weight (Kg) | 4.7 |
| Packaged Length (mm) | 545 |
| Packaged Width (mm) | 345 |
| Packaged Height (mm) | 220 |
| Barcode | 5060272540005 |
| Airflow Performance (l/s) - Low | 5.2 |
| Airflow Performance (l/s) - High | 10.5 |
| Airflow Performance (m³/h) - Low | 19 |
| Airflow Performance (m³/h) - High | 38 |
| Warranty (Years) | 5 |
| Quick Search: | QS2838 |
| Shipping Method | Under £100* | Over £100* |
| Economy: 4 to 7 Days (Orders under £20 inc VAT) 4 to 7 Days (Orders over £20 inc VAT) |
£2.99 £4.99 |
FREE FREE |
| Courier: 2 to 4 Days (Interlink or TNT) |
£7.99 | FREE |
| Next Day: Next Working Day Delivery+ |
£24.00 |
£24.00 |
* Usually £200+vat
+ Order before noon for Next Working Day Delivery for items in stock
Please Note: Ducting tubes over 200mm in diameter and 3 metres in length may incur additional shipping charges.
See the full delivery information here: Full delivery information
Your question will be sent to a member of our team. We'll email you the answer and post it on this page. If your question is about an order you already placed, please use our Contact Form to reach the customer service team.
Can this unit be used to extract heat from one room to another.
Hello Carol,
The unit is designed to take stale, moisture laden air from inside the propertyand exhaust it to the outside of the property. A separate air channel is thenused to bring fresh air in to the property, using the residual heat from theextracted air to warm the incoming air by passing both airflows throughseparate paths of an aluminium heat exchanger.
While the unit could theoretically be installed through an internal wallto exchange air between the two rooms, the unit is not designed for thispurpose and depending on the thickness of the internal wall, the unit mayprotrude if the wall is thinner than the minimum length of the unit (229mm).
As the unit has a balanced airflow, it would be extracting and supplying air toboth rooms at an equal rate, so it is a continuous cycle of air movement, not aone-way transfer of heat from one room to another.
I hope this helps explain some of the limitation of the installation you aresuggesting. If you would like to discuss this further please do not hesitate togive us a call.
Whats the running cost daily
Hello John,
The running costs based on average UK electricity costs as of April 2015 and an estimate of usage (Explained in explicit detail below) totals at roughly £0.04/day or £1.35/month.
I will show you below exactly how I have calculated this.
The unit is a continuous running appliance, meaning it runs 24/7, 365 days a year. The unit operates on either a 9 watt 'Trickle' Speed or a 46 watt 'Boost' speed (Source: http://www.kair.co.uk/product/kair-heat-recovery-room-ventilator/) The below calculation is based on the unit running on Trickle for 80% of the time, and Boost for the remaining 20% of the time.
You can quickly calculate the running cost using these two figures, the amount of time the unit runs for, and the price you pay for your electricity - At the time of writing the UK average is ~10.252 pence per kw (Source: http://www.ukpower.co.uk/home_energy/tariffs-per-unit-kwh).
1 Month = 730.484 Hours (Source: https://www.google.co.uk/search?q=Hours+in+a+month)
80% Trickle = 584.387 Hours
20% Boost = 146.097 Hours
Using this calculator (http://www.ukpower.co.uk/tools/running_costs_electricity/) we can work out the following running cost:
##############
TRICKLE COSTS:
##############
1. Watts = 9 Watts - K-HRV150/12RH Trickle Speed
2. Watts/1000 = kilowatts or kW = 0.01 kW (The calculator rounds this up to 2 decimal places)
3. Hours used in month = 584.387 Hours
4. Kilowatts x Hours = Kilowatt Hours or kWh = 5.84 kWh
5. Electricity price (in pence per kWh ) = 10.252 pence (UK Average)
6. kWh x pence = Cost (in pence) to run the item for 1 month = 59.87pence
7. Divide by 100 to get to cost in £'s to run for 1 month = £0.60
8. Number of the same items in the house = 1 x KHRV150/12RH
____________________________________________________________________________________
Total Cost to run K-HRV150/12RH on trickle for 80% of time 1 month = £0.60
##############
BOOST COSTS:
##############
1. Watts = 46 Watts - K-HRV150/12RH Boost Speed
2. Watts/1000 = kilowatts or kW = 0.05 kW (The calculator rounds this up to 2 decimal places)
3. Hours used in month = 146.097 Hours
4. Kilowatts x Hours = Kilowatt Hours or kWh = 7.3 kWh
5. Electricity price (in pence per kWh ) = 10.252 pence (UK Average)
6. kWh x pence = Cost (in pence) to run the item for 1 month = 74.84 pence
7. Divide by 100 to get to cost in £'s to run for 1 month = £0.75
8. Number of the same items in the house = 1 x KHRV150/12RH
____________________________________________________________________________________
Total Cost to run K-HRV150/12RH on boost for 20% of time for 1 month £ 0.75
##################
TOTAL COSTS COSTS:
##################
TOTAL COST PER MONTH: £0.60 + £0.75 = £1.35 / month
TOTAL COST PER YEAR: £1.35 x 12 months = £16.20 / year
Sources:
h
this product mentions filters where are the filters located how often are they changed
Hello Gary,
There are four filters in total - Two are mounted internally inside the unit and two are accessible from two side access panels on the front fascia of the unit.
The best way to illustrate this is using this image: http://www.i-sells.co.uk/images/5_large.jpg - The two yellow items are the large and small filter for the unit. The filters are then mirrored on the other side of the unit.
The external filters can be easily cleaned/changed by simply opening teh side access doors. The internal filters can be easily accessed by removing the unit from the wall. We recommend this is carried out every ~8-12 weeks depending on conditions within your property. Replacement filter packs can be purchased here, but one set of filters is available free of charge if you register the unit within 14 days of purchase.
Full maintenance instructions can be viewed here or by clicking the 'Product PDFs' button on the rigth hand side of the product listing.
Please let me know if you require any further information.
Michael
Hi, this looks like the inputs and the outputs are very close together? It looks like the outputted air is just sucked straight back in. Is there some ducting to seperate incoming and outgoing air?
Hello Ronan,
In our new kitchen we want a heat recovery unit where the air has to travel 4-5 metres to get outside. Does Kair have a product for this?
Hello Nicholas
Thank you for your question. The HRV150 unit is fitted though a external wall and can not be ducted. We do a window kit for this unit the quick search number for you to have a look at is QS2890. If you require any further assistance please do not hesitate to contact me on 0208 463 9683.
Kind Regards
Anita
A few questions - 1. Does this require an electrician to install or do you just plug it in? 2. You say the filters can be cleaned? 3. It is designed to be continuously running but can that be overridden? Thanks
Hello Mike
Thank you for your questions. We recommend that the unit is install by a qualified electrician. The filters can be washed in warm soapy water and replaced when dry. The unit is continuous running the pull cord provides a manual override to facilitate additional 'boost' supplies of fresh filtered air.
Can this unit be ceiling mounted and used with aluminium flexi duct as I have no outside wall to drill thro. Thanks
Hello Jason,
This unit is not designed to be ceiling mounted as part of a standard installation and you cannot use aluminium flexible duct as the unit is both supplying and extracting air and using standard ducting would lead to cross-contamination.
We do offer a 90 degree bend kit which might potentially be possible depending on the length of the duct run. However, this will affect the extract and input air rates so the unit will be less effective. You may also have a problem with condensation dripping back down into the property. We would not generally advise this and we offer a variety of other systems which are more suitable for your application.
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.
Kind regards,
Michael
Michael.Gallagher@i-sells.co.uk
Hi can you advise what might be the best option for installing into a bathroom with no external wall access, please? The ducting would run via floor void to outside via ducting, a distance on around 5 metres. Thanks in advance.
Hello David
Thank you for your question. The HRV150 Unit will not do your application. If you could give me a call on 0208 463 9683 and I will be able to help you further with your application.
Kind Regards
Anita
Hi, I have a large open conservatory off the kitchen which suffers extreme condensation. In fact its so bad it drips from the apex leaving a trail of water on the floor and furniture etc. The whole area has underfloor electric heating. Would this unit stop this, or at least help as we are considering replacing the roof with a solid tiled one because of this. Thanks.
Hello Alan
Thank you for your question. Depending what size the conservatory is as this unit can do up to approx 20feet. If you need any further assistance please give me a call on 0208 463 9683
Kind Regards
Anita
Hi, Is a unit available for an internal room that can be ducted 3.75m to an external wall? The room is used by 2 people and building control requires 12 l/s/p air supply and balanced extract?
Hello Philip
Thank you for your question. The HRV150 can be ducted to a maximum of 1 m using the extension kit. Unfortunately there is no though the wall heat recovery unit on the market which can ducted. However you may want to look at ceiling or loft mounted system.
You may wish to consider the Vent Axia HR100R or HR100RS ducted single room heat recovery unit but you would need to show the specification of the unit to your building control officer or other suitably qualified person to advise on suitability.
Kind regards,
Anita & Michael
We have bought a small, terraced house with an open fire in the living room. There is damp, which is being sorted at the moment, but the chimney surveyor also said that there should be a vent to bring in air from outside, for safety reasons (and compliance with Building Regs). Would this fan be suitable and effective? Also, the wall is a non-cavity, 9-inch brick wall.
Hello Joanna
Thank you for your question. The HRV150 is a heat recovery unit and will not do your application. The item you require is a black hole ventilator depending on what free air you require there is a list of 3 below.
QS2851 30cm free air
QS2849 70cm free air
QS2847 100cm free air.
I have a projector with effectively a sealed room to achieve blackout conditions. It is suffering from poor ventilation; the air quickly gets stale though there are no condensation/humidity problems. Would this type of unit work well, and if so what are the noise levels like? If not can you recommend any other suitable product. Thanks
Hello Barry
Thank you for your question. For me to help you further would you be able to advise what size the room is and also is there an external wall in the room. My contact number is 0208 463 9683
Kind Regards
Anita
The unit is described as 12 volt AC, can it be run on 12 volt DC power? In a vehicle? Some long term van dwellers, (camper van) have a need for such a unit.
Hi Graham,
Since having a flueless gas fire fitted with a 6" air vent fitted to outside wall, which is required. We have been having condensation and mould issues, which I believe is the cold air hitting the hot air that has caused this to happen....Please can you advise me on the best solution. Thank you
Looking at the picture is there a control unit that must be fixed to the ceiling. What is the night sensor, can it stop the unit working at night. I live at postcode PA37 1RL on main land Britain, is there an excess delivery cost.
Hello Peter
Hello, I am from Cyprus and in the hot summer my garage room gets very hot and a lot moisture is building up because in the garage i also have the hetpump that cools a boiler in there for the funcoils in the house. Can this ventilation work in this situation to extract out all that heat from the garage?
Hello Antonis
Would your product be suitable for a conservatory. 15ft /10ft
Hello Shirley
How does the extension kit work, would I be able to easily fit this to the unit, do I need glue. What is the cost of postage.
Hello Peter
We have moved into a flat which contains one of your extractor fans in the bedroom. We are wondering what this is for. Do you have any record regarding the initial installation? Was it ordered by Torsten Boehler and what was the date of the installation?
Hello Liese
We are seeking an extractor that will clear cigarette smoke and cooking smells from our (relatively small) kitchen without blasting out all the room's heat. Is this unit for us?
Hello Adrian
I have no experience of local builders or electricians. Do you keep any details of tradesmen in The Wyre Forest (Kidderminster/Bewdley/Stourport) that have installed and are familiar with the HREF ?
Hello John
We have a concern regarding the booster function of the fan as it doesn't appear to be coming on when the humidity is high e.g. after a shower, although the humidity control has been set to 20% (the fan is situated in the bathroom). It does however come on when direct sunlight is shining into the bathroom. The fan also seems to be blowing inwards to the main central duct, is this the way it is meant to work. Many thanks.
Hello Deborah
Hello, I realise it is a few months since my order, but can I return one of the units? I thought I needed two, but it turns out I only need one. The unit is unopened in complete as-new condition. Thank you William
Hello William
I purchased an apartment for rent 3 months ago and the tenant has complained about mould forming in the bedrooms and Kitchen. There is an extract fan in the bathroom with a humidity stat and a cooker hood in the kitchen. There are air bricks in lounge and one of the bedrooms. Do you think that adding one of you heat recovery units to the bedroom wood solve the problem. Would the noise be acceptable in the bedroom and as the bedroom air brick is at low level (600mm FFL) will this be suitable to save making a new hole.
Hello Arthur
My external wall is slightly thinner than the required 229mm, is there a way of installing the unit to overcome this?
Hi Steven, It would be very helpful if you let us to know the thickness of the wall/structure that the fan is being installed.
We have an open plan living room/dining room with a stairwell going up to a landing and more rooms that is also open. If we were to put the fan in the kitchen wall, would it still work even though a lot of hot moist air would normally go straight up the stairwell? Would we be better off installing it up on the landing outside wall instead?
Hello Robert
Hi, I have really annoying condensation both in my bedroom and (open plan) living room. Both rooms have two very large single sash windows. We get a fair bit of condensation always on the windows (walls are mostly fine, with no apparent mould). There is currently an air vent towards the ceiling in-between the two sash windows. I want to utilise that existing hole in the wall and place your unit inside it. I still need to do measurements, etc. but I had one question at this stage: The wall where I want to install the unit has an electric heater, so the unit would be above the electric heater, but at a significant height. Is that a problem? Would that hinder the unit in any way from performing its job? Thanks very much!
is there a product similar to this, which can be ceiling mounted and vent into the loft space?
Hello Sam
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