Pre-Built Combi Boiler System with VT2218 and Zone valves 

Hey Jim, thank you for posting these videos and sharing your knowledge. I have a question: What size are the inlet and outlet of the manifold and what type of adapter (reducer?) you use to connect to the supply and return. Second, If I were to build the manifold myself (pretty expensive I would say), what pipe diameter is the horizontal run? Thank you n advance for your time.

You don't make any sense to beginners. This video is useless for people trying to learn. I have a degree in Electrical Engineering and a degree in Thermodynamics and a degree in computer science. I don't understand anything you explained. Go and make fun of my coment.

You have to charge 12,000 dollars , and not everybody wants to pay. Too fancy and expensive parts . But that's the way to do it if costomer like good quality.

What's a setup like this go for? Do you have any where the boiler does hot water (tap) heat as well?

for the secondary piping are you using 1" or 1.25"?

Well done. The one thing I have never liked about prefabbing boilers is, more often than not, they are assembled so compact that service on the unit will be next to impossible. You have have done a really good job of striking a great balance. The "next guy" shouldn't have any issue working on this.

I would love to find some where I could get a three zone Navien NFB-175H boiler setup pre built like this!

How much the hole thing cost for the part 3 zone

You sent me your email address a couple weeks ago and I lost it. Can you send it again please?

It seems nobody wants to tell anybody how much they charge for this work, I can only guess why.

Great Job and Thankyou for posting this.

Can you do a video of a setup system and how to connect and fill water from main supply as well as how to bleed all the air from the system.

where's the expansion tank?, is it built into the Navien?

what's your location?

Great video! This is the exact system I’m working on installing in my house. I was wondering though how to incorporate an outdoor wood burner into this setup.

Awesome video man!! Thank you. I could use your help sizing my old equipment to upgrade to something like this. Can we connect?

I've been in the commercial mechanical trade for almost 30 years. I'm more of the sheetmetal side instead of the plumbing. So I have no business critiquing any of your work. Looks awesome, actually! But boilers, especially these high efficiency condensating boilers just fascinate me. I've done a few, including a Noritz NRCB combi at my home. Awesome machine. I used taco zone valves and a 007-f5 circulator. I keep an extra zone valve and circulator for backup. Now 2 of my zones are baseboard and the 3rd does the basement hydronic fan coil. System works fine and it's into it's 3rd winter. Finally my question. I do not monitor temperature. I really don't know what the return temps are in respect to the supply. I have an outside air monitor to regulate boiler temperature. So would my system benefit from a circulator that uses pressure or ∆t to control flow? Would the cost of the pump actually pay off in the long run? Also, why don't you have a table? My knees and back hurt just watching you, lol

gsg your moving the camera around it made me feel queezy

Nice Pro Installation! Good Job explaining everything as well.

another stupid question. The backing board you are using is 1/2" or 3/4" material?

That Navien manifold looks like some money!

Hi, I love the video. I do the same stuff with my own company. I’m not set though on what boiler I want to sell. I really like the Navien and I see you must too. Any opinions on using this boiler?

With a 1 zone combi Navien Boiler System ... I wonder if the Webstone H-5FK5-CH would be an alternative?

how big is the board you are using to mount everything on? just trying to get everything in perspective.

The self fusing silicone tape holding the thermistors will loosen at higher boiler temperatures.

Cost??

Was the customer using only 1 loop per zone? Great video.

will the pressure relief valve be connected below the air separator?

Well done ! Explained everything super thoroughly. Keep up the good work!

6:20 is so key!

vt2218 currently has circuit board issue as per Taco tech support. looking forward to revamp release to correct this some time after February 2023

How do you like the navien combo boilers? What do you think about gas leak problems on NCB 240e heat exchanger? I have navien ncb240e and have that gas leak, thinking to get something else but like navien more …. What u think ?

where is the expansion tank?

Noobie question....but shouldn't the air separator be mounted as high as possible in the system?

Awesome video man!! Thank you. I could use your help sizing my old equipment to upgrade to something like this. Can we connect?

Great job curious to know why u don't have a high limit switch and low water cut off install. Is it not required in your state or is it built in to the navian

last question, can the magnetic filter go anywhere on the main line or does it have to be on the return side?

How can I contact you about a custom build?

hi i was wondering if the magnetic filter is a must have.. i just had the same system installed and my plumber did not put on the magnetic filter

Is that the model that only lasts a few years? Is the computer board black yet?

what are you using for pipe support or pipe standoffs?

Nice job.

Where did you get the temp sensors for supply and return?

Be nice to see one fitted.

No expansion tanque?

in and out of the Navien manifold did you reduce or stay at 1.5"?

Auto fill at this navien sucks

How much u charge to make a setup like this?

Not just do your job and build it at the house? so strange