All my favorite HVAC tools: https://www.amazon.com/shop/thediyhvacguy?ref=ac_inf_tb_vh Manometer: https://amzn.to/3jcQXxS Hose adapter: https://amzn.to/3V645SE #1 Source for HVAC equipment: hvacdirect.com Use my discount code X17AYSRVNGN8 for an extra 3% off! IF YOU ARE IN NEED OF GUIDANCE WITH YOUR HVAC SYSTEM, whether it is diagnosing a bad part, replacing your system, or help with sizing, check out our membership program here: https://www.patreon.com/diyhvacguy For a small fee of $200, you will get assistance from myself when it comes to your hvac needs, whether it's sizing, diagnosing, or locating the correct equipment. Here Is Where I Order All My Air Filters: https://filterbuy.com/qYEa1J0knccjlwekk7Hc/ Follow us for more diy hvac tips & to enter for our giveaways! Instagram: https://www.instagram.com/diy_hvac_guy/ Tiktok: https://www.tiktok.com/@diy.hvac.guy?lang=en Facebook: https://www.facebook.com/Selfmadehvac/ ⚠️ Disclaimer: This video is for educational purposes. Any and all HVAC repair work is done at your own risk. The DIY HVAC Guy channel is not responsible for any possible damages or injuries caused by the use or misuse of the provided information. 00:00 Introduction 00:30 Shutting off the natural gas 01:40 Shutting off the electricity 03:21 Removing gas line 04:50 Installing new gas valve 08:04 Removing electrical box 12:10 Disconnecting return plenum 14:17 Disconnecting supply plenum 17:24 Removing old furnace 20:21 Cutting hole in furnace for return air 22:47 Installing new gas line 28:00 New electrical installation 31:29 Ductwork transition 41:21 Main power and electrical switch 46:08 Reinstalling thermostat wires 48:43 Checking gas pressure 52:07 Checking static pressure 56:16 Checking temp rise