Weil-McLain CGa Boiler Build – Watch Before You Install One!

In today’s video, Mikey Pipes takes you inside the Pipe Doctor Home Services shop to show the entire build-out of a Weil-McLain CGa5 gas-fired boiler before it ever leaves for installation. This 140,000 BTU, 84% efficient atmospheric vent boiler is getting the full Pipe Doctor treatment — from piping layout to circulator wiring, safety checks, and custom shop assembly. 🔥 What you’ll see in this uncut 18-minute video: ✅ Proper build-out of a Weil-McLain CGa boiler in a controlled shop environment ✅ Installation of Taco SR502-4 switching relay and Grundfos ECM circulators ✅ Common factory issues (like missing thread sealant and unsoldered pins) ✅ Correct use of Spirorvent air separators, hangers, and pressure valves ✅ Mikey’s real-world commentary and pro tips on pre-building before install day If you’re a plumber, HVAC tech, or heating enthusiast, this one’s packed with practical knowledge straight from the shop floor. 👉 Subscribe for real-life service calls, installations, and behind-the-scenes builds from Pipe Doctor Home Services — where we fix it right the first time. 📍 Serving Long Island, Queens & NYC 📞 Call 516-348-6400 or visit https://pipedoc.net ⏱️ Chapters 00:00 Intro – Unboxing the Weil-McLain CGa5 00:45 Overview of specs and features 02:00 Setting up for shop build-out 03:25 Discovering a factory-installed leak risk 05:10 Building the supply header and air separator 07:00 Installing dual Grundfos ECM circulators 09:15 Setting hangers and vertical supports 11:10 Wiring the Taco SR502-4 relay 13:05 Finding unsoldered pins – quality control issue 15:00 Final assembly and prep for install 17:45 Wrap-up – next week’s installation 🔖 Hashtags #MikeyPipes #BoilerBuild #WeilMcLain ✅ NEED SERVICE? FOR RESIDENTIAL AND COMMERCIAL REPAIRS: Pipe Doctor Home Services, Inc. 516-348-6300 https://www.pipedoc.net/request-service/ ✅ Limited Edition 2025 Mikey Pipes Poster Now Available - only $42.50 delivered! PayPal is: [email protected] Venmo: @PipeDoctor CashApp: $mikeypipesny Zelle: [email protected] ✅ Join this channel to get access to perks:    / @pipedoctor   ✅ Let's Make The Trades Great Again & While Giving Back To The Community:    / @mikeypipesphilanthropy   www.pipes4free.org Our mission is to provide free or low cost plumbing, heating & cooling services to those in our community who can't afford to hire a professional. Mikey Pipes Philanthropy, Inc. is a IRS registered 501(c)(3c) public charity incorporated in the State of New York. Donate on Paypal: https://www.paypal.com/donate/?hosted... ✅ Check out my podcasts on Spotify: https://podcasters.spotify.com/pod/sh... ✅ What’s in your ToolBag? This is what I carry: Veto TP-XXL https://amzn.to/3zX10vg Milwaukee M12 Fuel 1/4" Impact Driver https://amzn.to/3I9yLfI Milwaukee PVC cutter: https://amzn.to/3sbrdUc Mini Waterproof Storage bin: https://amzn.to/3yfgsEv Wiha Allen Keys: https://amzn.to/33ipGmb HIKMICRO B20 https://amzn.to/33iGklx Furnace Switch https://amzn.to/31X89PT Milwaukee Light https://amzn.to/3I38Lmh Wagos https://amzn.to/34QoiaU Milwaukee Set https://amzn.to/33vnQOz Torpedo Level https://amzn.to/3no1oOk Crescent set https://amzn.to/3GtZeV8 Wiha 7 piece set https://amzn.to/3rkISaK Milwaukee step bit https://amzn.to/3I395Bv Flare wrench https://amzn.to/3noJZ8s Ridgid 10” wrench https://amzn.to/3GvRnqa Fluke non-contact tester https://amzn.to/31VQgAQ Klein drivers https://amzn.to/3qoe21W Knipex Wrenches https://amzn.to/3trzFjS Klein 11-1 https://amzn.to/3tpsPLD 12” crescent https://amzn.to/3A0CZ6S Gerber Gear Pocket Knife https://amzn.to/3foaW7I Yellow Jacket Hand Ratchet https://amzn.to/3nrDgup ✅ WhatsApp Group: https://chat.whatsapp.com/CHZWtZe4KMG... ✅ Mikey Pipes Uncensored:    / @mikeypipesuncensored   ✅ Please support this channel and Mikey Pipes and consider the following… Shopping on Amazon? Please use my referral link https://amzn.to/2PjjS4v ✅ Sticker Requests: Do you want a sticker to show your support of this channel? Email your request to me! [email protected] Name Address City, State, Zip ✅ Want to send a love letter, note or gift? Our mailing address is: Mikey Pipes, Inc. 1010 Central Avenue Woodmere, NY 11598 #hvac #PipeDoctor #MikeyPipes Music from #InAudio: https://inaudio.org/ Track Name Fly Away