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.
Non O2 bariier tubing and Lochinvar Knight
I am considering a new mod con boiler .Our regional Lochinvar rep said he believes there is no reason that the Lochinvar Knight would not fare well connected to this tubing. Still scares me. This boiler has only been around about 4 yrs. Thoughts?
knight and non o2 piping
The knight ships with black fittings that would have to be changed to brass, along with any other items in the system that could react with air. I would also be sure to put in some sort of anti bacterial to help keep the system from growing things. Additionally you could probably say goodbye to the warranty unless you have something in writing. Lochinvar makes a decent product, its not my favorite. Choose a boiler that has good local support and parts availability for your area just in case you need them.0
I installed knight on a old poly system 2 and half years ago. The old system would eat a hole in an expansion tank in less than a year. I put all bronze pumps and a enamel lined expansion tank in the new system with the knight. no steel or iron at all , Plus i put in a corrosion inhibiter and check it when i do the yearly service. no problems so far. The other option was to put in a flatplate heat exchanger set up / or a taco x-block ( if the btu fits the x-block 70k btu i think)
The lochinvar knight has been has been a great boiler. I have only installed 6 so far in the last four years but so far no problems.0
why I asked the rep
Plan A for this install was to isolate the boiler and indirect DWH with a heat exchanger. However, with a heat load of only 36K btu I was trying to do it with the 50K btu boiler. mainly for it's 10K btu low fire. I have been circulating 9 gpm of 105*F or lower into a poured therma floor underlayment. A 50 gal / 42K btu output water heater has worked fine in colder weather but not in milder.
Some have suggested that efficiency would be lost in this transition. Except for the extra pump and head loss, I don't fully understand why or how much, but it does make sense.0
This discussion has been closed.
- 121.3K All Categories
- 84K THE MAIN WALL
- 2.9K A-C, Heat Pumps & Refrigeration
- 53 Biomass
- 417 Carbon Monoxide Awareness
- 40 Chimneys & Flues
- 1.7K Domestic Hot Water
- 4.7K Gas Heating
- 119 Geothermal
- 155 Indoor-Air Quality
- 3K Oil Heating
- 56 Pipe Deterioration
- 771 Plumbing
- 5.4K Radiant Heating
- 362 Solar
- 14K Strictly Steam
- 3K Thermostats and Controls
- 51 Water Quality
- 625 Buy, Sell, Barter
- 38 Industry Classes
- 73 Job Opportunities
- 17 Recall Announcements