Featured Videos

We get our first in-depth look at the new Navien NFC We stopped at Navien’s booth at the AHR Expo to look under the hood of the new Navien NFC combi-boiler using Navien’s own firetube heat exchanger. Take a look at the video to see some details and specs, one thing that surprised me right Read more

We get our first in-depth look at the new Navien NFC

We stopped at Navien’s booth at the AHR Expo to look under the hood of the new Navien NFC combi-boiler using Navien’s own firetube heat exchanger.

Take a look at the video to see some details and specs, one thing that surprised me right away was the included accessories. For contractors looking for high amounts of hot water production, a low head loss heat exchanger for easier piping on the hydronic side and additional features like remote connectivity it looks like the NFC is worth checking into. You can find more details and specifications on Navien’s website or here in our new product listings on Hydronics Hub.

All the bells & combi boiler whistles

The new Navien NFC combi boiler models come with a patented in-house designed and manufactured heat exchanger, Low Profile Burner for ease of service, advanced controls offering intuitive user navigation, a built-in DHW module (pump, flat plate heat exchanger, 3-way valve, mixing valve, water adjustment valve and auto water fill valve), common venting capability up to 8 units, cascading capability up to 16 units, and built-in hardware to connect up to 3 zone pumps without a need for additional external controllers.

Heated Walls!

https://www.youtube.com/watch?v=G9YBhXpUcIw Here’s a time lapse video of one of the fun projects happening up in Northern MN at the #duluthbuild job site. This wall will be radiantly heated in addition to the heated floor. The space below the window will have a freestanding tub, to the right will be a tile shower. I think its Read more

Here’s a time lapse video of one of the fun projects happening up in Northern MN at the #duluthbuild job site.

This wall will be radiantly heated in addition to the heated floor. The space below the window will have a freestanding tub, to the right will be a tile shower. I think its safe to say the master bathroom will be very comfortable for the owners!

Navien’s comb-boiler (NCB) has had its share of criticism and praise alike but in my opinion there is one thing that gets me a little more than excited, the fact that nearly half the boiler must be removed to replace a part that is known to fail more than most other parts on the unit Read more

Navien’s comb-boiler (NCB) has had its share of criticism and praise alike but in my opinion there is one thing that gets me a little more than excited, the fact that nearly half the boiler must be removed to replace a part that is known to fail more than most other parts on the unit. As you’ll see in the video the PCB, main control panel, some internal [and external] piping and circ pump all must be fully removed in order to gain access to a failed 3-way diverter valve.

If you’re not sure what the valve does, you may not be alone but its really quite simple; when idle the valve is in position to supply flow from the heat exchanger’s supply outlet to either the heating system load (hot supply to system) outlet or to the flat plate heat exchanger to satisfy a call for domestic hot water. The problem is that its a piston type valve that can and will fail in a partially open position when there’s a call for DHW. The results are low flow to a potable water faucet at higher than desired temps [hence the reason I always spec and install a thermostatic mixing valve on the domestic side outlet]. The fix, while very time consuming, is relatively simple.

Hopefully this step-by-step video will familiarize the process for you if you’re faced with replacing the valve for the first time.

 

If you’re interested in a tool that has helped tremendously in making the job just a little easier, check this out:

To see more specialized tools check out or friends at KC TOOL.

kctool

Sometimes its fun to step back and see the whole process from start to finish. Here’s a time lapse video of the prep and install for the radiant in-floor heating at the #duluthbuild project in Northern Minnesota. I’ve been trying to document each step along the way for this project we are building for my Read more

Sometimes its fun to step back and see the whole process from start to finish. Here’s a time lapse video of the prep and install for the radiant in-floor heating at the #duluthbuild project in Northern Minnesota.

I’ve been trying to document each step along the way for this project we are building for my little sister and brother-in-law and I’m starting with the over 7K sq ft of radiant. If you’d like to follow along you can search the hashtag #duluthbuild on either Facebook or Instagram, doing so will show you all the posts from the project.

If social media isn’t your thing or you’d just rather stay put here on The Hub check out these recent videos:

What is permanent? What will be there in 100 years? 

Uponor Ecoflex pre-insulated job site install

 

Uponor’s Ecoflex pre-insulated piping system was chosen for our latest project in Duluth, MN because of its flexibility and weight. I’ve worked with a few similar products but none have been as easy to order, handle and install. Here’s a video from the install day, more to come when we install the boiler system. If Read more

Uponor Ecoflex closeupUponor’s Ecoflex pre-insulated piping system was chosen for our latest project in Duluth, MN because of its flexibility and weight. I’ve worked with a few similar products but none have been as easy to order, handle and install. Here’s a video from the install day, more to come when we install the boiler system.

If you want technical details or more information please visit uponorpro.com.

For more videos and pictures from our #duluthbuild project please check us out on Instagram!