TWO PIPES ONE VENT? Electricians Q&A - Ventilation and extractor fan ducting
HTML-код
- Опубликовано: 23 авг 2024
- Installing ducting for MVHR and MEV systems can be a challenge. A trade-off between balance airflow, system efficiency, noise and ducting size.
In this video, we explore why a parallel run of semi rigid mev ducting was used in our recent review of the envirovent mev range.
=== AD =====================================
More information from Envirovent
hub.efixx.co.uk...
Ventilation CPD module
www.efixx.co.u...
===============================
📍SUBSCRIBE TO THE CHANNEL eFIXX helps electricians, electrical contractors, building services engineers, and electrical apprentices. Watching our videos, you'll discover new products, explore new applications and find answers to your technical questions. So if you've been on the tools for years or just starting your electrical journey, we'll help you stay up to date with the latest regulations and developments in the electrical industry.
hub.efixx.co.uk...
================================
📺 NEW TO THE EFIXX CHANNEL Watch our essential videos playlist hub.efixx.co.uk...
📺 CATCH UP ON THE LATEST VIDEOS
hub.efixx.co.uk...
📺 ELECTRICIANS' TOOL REVIEW
hub.efixx.co.uk...
================================
🔴 eFIXX LIVE Join us for our youtube live stream twice a month - features product sneak peeks, challenges, giveaways and live electrical banter.
NEXT STREAM HERE
👉hub.efixx.co.uk...
Catch up on previous episodes
👉hub.efixx.co.uk...
================================
🆕 FREE CPD Learn about new applications, regulations and best practice with our FREE CPD modules. - New modules released every month covering everything from surge protection to lighting hub.efixx.co.uk...
================================
📝 APPRENTICE HUB If you're an electrical apprentice, retraining as an electrician or looking to refresh your knowledge, then please check out our apprentice hub. It contains thousands of multiple-choice questions to help prepare for electrical installation exams. hub.efixx.co.uk...
================================
📩 eFIXX NEWSLETTER Sign up to find out about our live events, competitions and product giveaways.
www.efixx.co.u...
================================
FOLLOW US on your favourite social networks for behind the scenes action, breaking news and competitions.
🟠 INSTAGRAM hub.efixx.co.uk...
🔵 LINKEDIN hub.efixx.co.uk...
🟣 FACEBOOK hub.efixx.co.uk...
🟡TWITTER hub.efixx.co.uk...
==================================
❌ This content on this channel is for electrical professionals.❌ ==================================
📹 Presented by
Joe Robinson - Technical Editor
===================================
#efixx #mev #ventilation 
Наука
You are the business, Joe. You take university level science, and produce a video that even an apprentice can understand 🙏👷🏻♀️
Decent mechanical ventilation is so often overlooked in UK homes, even though we live in a climate where we can't have the windows open 6 months of the year. I've retrofitted MVHR into all my homes, even the more drafty ones, and its just nice to always have a fresh atmosphere, the option to keep out pollens and never to have any concern over damp.
Couldn't agree more, surprising we don't have more problems really.
In my home, there is always a couple of windows open to a greater or lesser extent. I suspect that the current fad for extraction systems will be seen as a poor decision. Ask New Zealand about ill-thought government interventions in construction.
@@JimWhitaker I put in decent MVHR units, they are cheap on eBay as commercial installers often spec them wrong and have to get rid of the wrong units. Honestly I remember spending more time replacing bathroom extractors than I have had to invest in servicing or repairing the MVHR units - they are super reliable. If they crap out, well you just swap a new unit in - takes an hour or two.
Of course you can keep windows open but most people don't want the comfort or heating cost implications of that.
If i have 8 inch ducting with reducer to 6 inch where should i put the reducer? Close to the fan or close to the hole in wall
Fan - - - reducer >>>>>>>>>>>>> hole in wall
Or
Fan - - - - - - - - - - - - - reducer >>> hole in wall
Key
- = 8 inch duct
> = 6 inch duct
Would it make any difference?
There is a nasty smell coming out of those vents can you tell me why I have been sick since I moved here and it’s a brand new apartment filters are clean so I think it’s bringing nasty polluted toxic air inside my apartment
better than the cup version
I believe it's 75 and 90mm, but maybe there are some manufacturers which has their own ducts...
You can call them LEGS!
I did the cpd module for ventillation but never had my certificate ?
Hi Peter, can you email me at joe@efixx.co.uk with the date you completed the CPD?
@@efixx Hi Joe , thanks for prompt attention in sending the certificate.
@@peterlewis1106 my absolute pleasure, thanks for getting in touch. 👍
Uh... It's
A=πr2
The radius is half the diameter : 1/2
When you put diameter into the equation for the area of a circle you square it : 1/4
It's a weird way to write the formula, but it is correct. r=d/2 so r^2=d^2/2^2=d^2/4...
In practical engineering terms it's usually easier to measure the diameter of a cylinder which is why many engineers use the formula in the video. 😊👍
@@efixx personally, I've always measured the diameter, halved it to get the radius and then put that into the formula. Six of one and half a dozen of the other.