2 Zone Navien Combi Boiler System - Start To Finish - Complete How To Build Tutorial
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- Опубликовано: 13 окт 2023
- This is a how to video of a complete 2 zone Navien boiler system that uses 1 zone for baseboard and 1 zone for radiant in floor heating. The video walks through an entire build from basic layout to detailed piping and wiring.
Contact me at speranzadevelopment@gmail.com for consulting on a heating system or if you would like me to build you a system.
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#boiler #boilers #navien #vt2218 #radiant #combi #heating #hvac #plumbing #construction #home #house #renovation#renovating @NavienInc @TacoHVACtv @Supplyhouse 
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Very clean man. I’m impressed. Getting ready to build a house and watching your videos is helping better understand a cleaner board!
Email me at speranzadevelopment@gmail.com if you need any consulting 👍
Very informative! Thanks!
this is exactly what i want to do at my company, one day ill convince them ;)
SOLID GOLD VIDEO MY BROTHER . Thanks for taking the time to post and be thorough.
🙌
beautiful work man i love how you explain everything
Definitely a time SAVER! Nice work
Thank you!
Great video!!! Thanks for sharing all your knowledge!!!!
Amazing video!. I’m heading to the Navien factory in Toronto in two weeks to go over all this. I think you’re pretty much covered it all. Maybe I could save some money ha ha ha.
Very nice Jim, very nice. Thank you for sharing.
Great video , very informative. Nice work !!
Beautiful. Your work is that of a true craftsman.
Nice work
👍
Hello, I’ve been watching a lot of your videos and really enjoy how you explain everything and how clean and organized your set ups are. I was curious if you could let me know what those brackets are called that you use to hold up the pipes? Also, what is the part number or name of the check valve and feed fitting that brings water into the system? Thank you very much for your response and help
Split ring clamps and ceiling plates. You can use a dual check backflow preventer for the water feed. Email me at speranzadevelopment@gmail.com if you'd like a design and parts lists or consulting on a build.
This is the video I’ve been looking for! Thank you for sharing! I need to replace my combi system and the plumbers here want charge me $6000 for the Navien unit and another $10k to install it. I will definitely be reaching out to you soon about a consultation.
Email me anytime
Excellent video. Thank you. Is mixing valve needed for TILED (PEX inside the mud job) in floor radiant heat? Or is it only applicable for under hardwood floors?
You don't want the floor surface temp to go above 85 degrees. You can run an max of about 125 degree water supply to the floor to achieve this. If this is the only zone on the boiler you can just adjust the boiler supply temp and you won't need a mixing valve.
Nice woek Jim. Quick question where would the colde water supply line go in your system does it need a pressure reducer before it gets there
no magnetic filter? always put one on any high eff boiler
Hello,
I was surprised to see the manifold was open the whole way through.
Maybe you can help me understand, why are the supply and return loops piped together outside the boiler?
What does that do for the system?
I answered my own question..... THAT'S A MIXING VALVE.
Great video
The manifold is used to hydraulically seperates the flow through the boiler and the flow through the heating zones.
I'm looking to where I connect 24vt zone wiring on 240/130h circuit board
Good evening, I have a question I was hoping you can help me answer. I have the same combi boiler installed and I tired to do my yearly flush. On the domestic side it went no problem, I recirculated the descaled for 45 minutes, but when I tried to do the main heater exchanger flush I was unable to do so because the water would not circulate. Almost as if the three way valve inside was just stuck closed. How do I open that valve so I can circulate the descaled through the heat exchanger? Any input would be really appreciated. I’m stuck I have no idea how to get past this step. PLEASE HELP.
So I have a question about combi boiler sizes. Id like to do a combi on a 2200 sf radiant heated slab in northern Indiana. How do you figure out what size boiler is needed to take care of the slab heat and domestic? Does a larger boiler use more gas than a smaller one in the 6 months or so that the slab heat isnt on? Is it better to get two separate boilers? Thank you
Contact me at speranzadevelopment@gmail.com
what about a magnetic filter?
Do you have a video on the proper settings? I have installed 2 of these and both are using an abnormally high amount of gas. Your videos are extremely helpful but it would be nice to walk through the proper settings for the most efficient setup.
Email me at speranzadevelopment@gmail.com
i have a customer with one of those big boilers, do you have a video about how to replace it with one of those little ones like the one you have in the video?
this a house from the 70's
Email me at speranzadevelopment@gmail.com
Does the backflow preventor on the feed valve need to be lead free? Mind divulging what model you use?
It does not. It's only for the boiler fill portion. I use a dual check.
Shouldn’t used pt indoors either as it has a lot chemicals that you wouldn’t want mixing with indoor air . There used to be arsenic in old stuff .
I do not use pressure treated plywood ever for these builds.
i guess you are using the built in Navien water feed system as opposed to external?
Yes
I was wondering, can you hook multiple units at the same exhaust and air intake?
Yes, it's called a common vent system. It's in the manual.
What is a combi boiler? Haven't heard of that. Why have circulation pumps on each zone rather than valves?
A combi is a boiler that provides heating and domestic hot water from the same unit. I typically use pumps for each zone because they are close to the cost of a zone valve and if a pump goes down you don't lose every heating zone.
what size copper did you use on this build, for the main manifolds and the pump supplys
A mix of 1.25, 1 and 3/4
@@JimSperanza what is the manifold adapters part numbers for the 1.25 press fitting? Thank you
Can you link the drill copper reamer please?
ruclips.net/video/3JOUdapw0fo/видео.htmlsi=XEEQh7X2XnQK6_mX
Hi Jim where are you located
What state are you in? I was thinking of having you build a system.
Email me at speranzadevelopment@gmail.com with your info 👍
Navien is very complicated to deal. I got error code 12 doesn't go away. I change many parts already.
You should have an hvac technician check it out and they can contact navien customer support if needed.
Hi Jim, Can you give me a price to build in floor heat in my basement. Four loops of 135 feet with Domestic hot water
Email me at speranzadevelopment@gmail.com
How can I contact you directly?
Speranzadevelopment@gmail.com send me an email with your number 👍
How can I contact you
Speranzadevelopment@gmail.com
I Watched the Whole 45 Minutes and I Didn’t Hear you say is this Gas or Electric ?
This is a gas or propane system. The video link below is about electric boiler systems.
ruclips.net/video/BW7HaQuk8IY/видео.htmlsi=0HDJSzjPz0PBku88
@@JimSperanza Thank You 🙏
Basically this could be a 5 min video if you didn’t basically say the same thing 5 times basically
Still good information, tho. Dont be a hater 😜
Brother you speak as fuck,just do it.
🤣