Deciphering Duct Pipe Installation Home » DIY & Home Improvement Articles » Deciphering Duct Pipe Installation Updated on October 29th, 2014 By: SteveM If you’re looking to install insulated flex pipe for your heat recovery ventilation unit (HRV), you should read “HRV Duct Length and Installation Tips”. TweetShareSharePin0 Shares Your subscription could not be saved. Please try again. Your subscription has been successful. Newsletter Sign Up Get Your Free Weekly Update I agree to receive your newsletters and accept the data privacy statement. Champion multi-fuel ad Edge-Cutter Ad Dec2022 Bison pump ad Dec2022 Learn what you need to know to setup your own off-grid energy source with these tried and tested plans. Welding isn't just for the pros, you can learn along with Steve Maxwell everything you need for home workshop welding.