Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
Need help choosing a new Mod Con gas fired boiler
Chevy57
Member Posts: 8
I need help making a decision on brand of boiler. I was hearing all great things about the Bosch boilers and thought I had made a decision on the ZBR 28-3 but then I read that they are aluminum heat exchangers which is what is failing on my old dunkirk after 18 years. So why is a bosch aluminum, heat exchanger ok and Dunkirk not ok? This sent me down a rabbit hole and I found Navien boilers. Available locally in stock. similar price point to Bosch. They advertise a very impressive turn down ratio and have stainless steel fire tube heat exchangers. Stainless sounds good, fire tube technology has been around since early 1800s so probably apples to oranges to compare Bosch and Navien. Navien seems to have a great reputation for on demand water heaters but I'm not looking for a combi unit as I have a side arm. Help I'm way overthinking this.
0
Comments
-
Ha! Plenty of people here would be happy with a modcon lasting 18 years, they'd claim that'd never happen. All depends on your perspective I suppose.0
-
hot water fan,
I agree. no complaints from me it owes me nothing. I would buy the exact same make and model but it was discontinued 2 years ago and I can't find any.
0 -
-
I think water quality has a lot to do with HX life. Treat the water to the manufacturers spec, or better.
Combustion adjusting also, every time it is serviced.
This assumes it is piped and pumped appropriately also. Lochinvar has been my best performing and long lasting brand. I like the control features on the Knights.Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
X3 on the Lochinvar products. The fit and finish isn't the best (door clips are kind of janky, etc) but the controls and accessibility easily make up for that in my opinion. IBC would be my next choice, then NTI or Burnham tied for 3rd. TT and Viessmann tied for 4th. Navien at or near the bottom.0
-
I really like IBC. I have one in my home.
Look at the VX .
Control is really slick
0 -
HTP, Lockinvar, Viessman. Some of them have multiple DH calls on the boiler and can produce lower temps depending on the call which can be a convenient feature in some installations.0
-
I got about 17.5 yrs from an HTP 80M.Hot_water_fan said:Ha! Plenty of people here would be happy with a modcon lasting 18 years, they'd claim that'd never happen. All depends on your perspective I suppose.
0 -
Viessman Vitodens..very affordable these days..unparalleled qaulity & Warranties. Mad Dog 🐕1
Categories
- All Categories
- 86.3K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 53 Biomass
- 422 Carbon Monoxide Awareness
- 90 Chimneys & Flues
- 2K Domestic Hot Water
- 5.4K Gas Heating
- 100 Geothermal
- 156 Indoor-Air Quality
- 3.4K Oil Heating
- 64 Pipe Deterioration
- 917 Plumbing
- 6.1K Radiant Heating
- 381 Solar
- 14.9K Strictly Steam
- 3.3K Thermostats and Controls
- 54 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements