Installing a Heat Recovery and Ventilation System
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- Опубликовано: 4 окт 2024
- In this video Tony explains Installing a Heat Recovery and Ventilation System in one of our extension build projects. Tony explains what is MVHR and how the whole house was wrapped in closed cell insulation to make it air tight prior to installing the MVHR. The system installed was an Airflow DV245.
PLEASE NOTE: we’ll endeavour to answer questions and comments as soon as possible depending on our work schedules.
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Quality install from quality team,just so neat and tidy.
Thanks Maria! 👍
Hi Tony great to see you again I am amazed how you are always on top of all the new things that come out and all the research you do it’s amazing great video as always stay safe 👍👍👍👍
So nice of you Isabel, thanks for your continued support 👍
That's mind boggling Tony. What an amazing looking installation. You boys don't do things by halves do you??. More videos please. 😜
Thanks for watching TC! 👍
Very interesting how it all works, beautifully finished house, what a huge lovely garden.
Hi Gino much appreciated it’s an amazing garden I can only dream about such a beautiful garden all the best Tony 👍
Very innovative Tony, how do you bloody comprehend this stuff? Love how you invest in the guys with their training. 👌🏼
Many thanks Marty, always important to move with the times and continually develop our skills. Take care 👍
Your workmanship is brilliant 👍
Thank you Oz 😀
Very well explained, anything like this goes straight over my head,have a good evening 🥃
Thanks for watching Anthony 👍
Have you upset someone at RUclips? I would have expect you to have easily over 100,000 subs by now. Such good content!
Hi Elliott thanks for your kind words hopefully one day we are glad you are enjoying the channel all the best Tony 👍
Great content
@@BuildWithAE last time I went to the A and E I was supervised by a so called “enemy" that had to make sure I was receiving the care I needed, after he diagnosed me with my list of problems by looking at my face I decided to go private.
This is excellent Tony, wish you guys were in my area 👍🏻
Hi Danny much appreciated all the best Tony 👍
Amazing stuff chaps talk about commitment! 👌🏼🧱👍🏼
Hi Steve every days a school day all the best Tony 👍
@@BuildWithAE 🧱👍🏽
Where can u put pipes if vaulted ceilings and exposed glulam beams ?
Very sneaky hiding that cover with wallpaper..genius
Glad you like it Stephen! Take care 👍
From the Airflow website the DV145 unit installed is priced at £3k. And there were 2 required for the size of house shown. Plus 700m of pipework and all the accessories, labour and a fair amount of associated electrical/networking work no doubt. Then there is the spray foam and all of the effort in sealing up the house so that the HVAC system will work as advertised. The science is fine but for early adopters I cannot see any payback on your energy bills over the medium term for the capital outlay. On top of this they still need hot water which is presumably from a boiler? Did I hear him say that they had underfloor heating in the kitchen as well?
The example in the video is for a very large house. I have a 3 bed terrace 92sqm floor area. I installed 1 unit, 100m of ducting and it cost £1300 but I done all myself. I also have underfloor heating on the ground floor and rads upstairs. The hot water has nothing to do with the system. He did say they have ufh in the kitchen..
Hi David this house would normally cost Thousands of pounds to run a year. The HRVS system with the Air source heat running the hot water and heating side this pay back will be in 6 years with the grant from the government, Fossil fuels just keep going up. it has massive health benefits for Air quality and filters out irritants like pollen and pollution which is good for hay fever and asthma sufferers all the best Tony 👍
@@AlexSavage hi Alex, I've contacted a couple of firms for quotations but haven't had any response, I'd like to fit mine myself too, where did you get your kit from? Did you get it designed?
@@THE-AIDEN-PROJECT when you buy kit from firms they will do the design for you as well, if you want to go on the DIY route there's a lot on info on BuildHub forum under Mechanical Ventilation with Heat Recovery. It's definitely doable, it just depends how hands on are you.. I got my unit on ebay for a bargain price and I done the design myself.. after spending lots of hours online researching.. good luck!
@@AlexSavage yeah I'm a super DIY'er! 😂 I don't have a trade but I'll have a bloody good go! You'd tell that from my channel but I've had to go ghost mode until I sort abit of a nightmare out. I'll check the forum out, cheers mate
I have a question regarding the out/inlets on the ceiling. You have 2 pipes going to each vent, is that a flow and return or is it twin pipes to account for the smaller diameter pipe work?
could or did you do a video of the spray faom installation, particularly in the loft because that would very interesting
Hi Brian next time will do all the best Tony 👍
It works but at what cost.
🤑🤑🤑+ labour 🤑💥🤑💥🤑💥🤑💥😝😝
A lot.
Machines are about £3k each, there’s not a lot too them.. ducting is cheap
It’s the upheaval and retrofit that’s makes it expensive, you also need space for all those pipes. New build, it’s not that expensive.
Units are a lot less than 3k. I done my whole house for 1.3k, 3bed terrace retrofit DIY. This includes unit, pipework and vents.
@@martin2466 my unit's yearly consumption is less than £100 and I need to change the filters twice a year, that's another £24 a year. So, not that expensive taking into consideration the heat recovery
Just what I needed as I was looking forward to researching this and your video helps. Just a question how good is the air extraction in the kitchen compared with a standard extractor? Another stupid question.. is the fresh air supply into the room cold and warm air depending on the setting and how noisy is the system
It doesn't perform as well as a standard kitchen extractor that vents outside. This is for constant background venitlation 95% of the time and boost when using the shower or cooking. The extractor point in the kitchen isn't recommend near the hob because of the grease might get sucked up.
Your kitchen extractor directly above your hob/stove has a few speed settings 1/2/3. It will extract from 10l/s - 24l/s. Many kitchen extract systems above the hobs do not have the ductwork installed to dump the air outside the property. Its simply pulls the air pass a filter and dumps it towards the top of the kitchen merely acting as a degreaser.
Kitchen extraction that is part of the mechanical ventilation system (MVHR) is more consistent and reliable. The air valve in the kitchen ceiling can be setup in a manner where by the air is extracted 24 hours a day @ 10l/s like setting 1 on the independent kitchen hob noisy extractor. You do not have to keep turning it off and on.
If you require more extraction rate from the system your could flick a boost switch and the air extraction rate can increase from 10l/s to 17l/s. The boost could have an overrun timer on it set to 15 minutes where you control the rate of air you removing.
@@kirkenicker3136 OK. But the area of the air attraction unit is too small to really extract the air from a large kitchen even at 10l/s. The normal formula is 1l/s is approx 3.6m3/hour. So at 10l/s that is 36m3/hour of air extracted. This would be fine if the volume of the kitchen is small but not sure you will get many air changes/extraction per hour with such a system. Therefore my own conclusion is that a good hob extraction can achieve a much higher volume of extraction and more air changes per hour.
asif zardari residents don’t stand in front of hobs for hours on end to ensure living spaces undergo sufficient air changes.
I have been commissioning residential ventilation systems for 9 years now and can tell you 1st hand that people will never remind themselves to run jobs that are a noise disturbance for long periods of time.
@@kirkenicker3136 you make a valid point. I still think these systems are good for general background ventilation as they are less noisy and run for long periods. Maybe i need to test it out when cooking a spicey Indian curry to see how well it works compared with a good kitchen extractor to a duct outside.
How much would this cost for a 2500 sq ft two story detached house built in 2000 as a retrofit?
In a kitchen, moisture can be laden with oils from cooking. How does the system deal with this?
Bad robot? Lol
@@Dragon-Slay3r I know it's a fun icon
Hi Tony I'm in the process of planning a new build plans being submitted, I built our present house 20years ago all direct Labour, alot has changed, I like the idea of installing this system its a two storey house with concrete first floor I want underfloor heating everywhere, Will the flexie pipe fit between the ceiling on ground floor? Very good video👍
Hi John yes it should do just make sure you talk to architect and design team of the system all the best Tony 👍
@@BuildWithAE No bother Tony Thanks
How long would it take for the money you save with the recovered heat, to pay for the cost of making the house air tight and the system install?
Hi Jamie it’s six years with the system and grant we put in but the other main question is the quality of air especially if you are asthmatic or hay fever no mould build up, there’s one gentleman on this feed had done his house for £1400.00 because he lived by a main rd all the best Tony 👍 have a awesome week
Cost?
One thing I wouldn't do is the closed cell spray foam tbh
Tony, I'm renovating my house completely, would you suggest I use this system over standard combi boiler and if so, what's cost implications and difficulty in the installation, cheers stew
No chance. Keep on with gas
You are asking is you can trade apples for aubergines. A boilet gives you heat, a mvhr doesn't, it only recovers heat through ventilation.
@@AlexSavage that makes my blood boil
I have a period property and am convinced this is the way forward for many reasons , however its probably cost prohibitive to change may things on the house . If I had the time and money I would consider this project
It doesn't cost too much if you go down the DIY route. 3 bed terrace cost me £1300.
Price
Should MHVR be operating 24/7?
Yes
Only times you may need to reduce fan speed is in extreme low temperatures to stop ice problems. Not something we have issues with often here.
Most units have frost protection. Some will let you set the temperature that it kicks in usually -3 -5
I understand that this is a paid video(there are a lot of other manufacturers, but I have used their ducts which are 63mm diameter not 100mm), there are pro's about fitting a mvhr unit in the house, it costs a bit but it's not about getting your money back. You will get some back but you will have fresh filtered air all year round. Considering that you have to make the house as air tight as possible, you will be saving on your heating bills/cooling. The air flows don't mix, so there no air recycling only heat recovery.
The paid sponsorship didn't come through Airflow on this video, it comes from our show sponsor (MKM) that appears at the end of every episode. Take care 👍
@@BuildWithAE I understand, I like that you are spreading the word about MVHRs but no so keen when you focus o a particular brand. Keep up the good work!
Hi Alex thanks for your kind support and help answering the comments it would be cool to have you on a podcast if that’s ok with you and we can talk about different makes and other factors with the systems all the best Tony 👍
Are you a Matt Risinger fan too Tony? If not check him out on youtube.
Hi Steve absolutely he is a awesome guy really cool channel there are so many really cool guys and Ladies on RUclips and Instagram all the best Tony 👍
It seems to me you took something that looks easy and made it look very hard. 🤣
It was on the design no other way
does this system use any coolants other than water? Also, is there s heat exchanger that is an eco version : a simple residential use without refrigerants? Many tanks to anyone who answers this
😀
🥵🤷🏻♂️🥶🙅🏻♂️😀
First!
Waste of time and money making it harder for new builds and extensions. More hoops to jump through to get approved. Look at the bloody size of it all ! Where do you put it if you have a loft conversion already ? Puts you off having a small extension because you have to modify the whole house.
Sorry could not watch thus very interesting topic
too much hand waving for me
Ha, ha.......tough crowd!
For rich people with nothing better to spend their spare cash on and if that’s what they want then that’s up to them.