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.
flue gases with old CI rads on conventional gas boiler
kensheets2
Member Posts: 36
Hello
I understand that with low water temp installations such as radiant floor heating, return water temps will naturally be less than ideal. My question is if I am running an application using old cast iron rads with a conventional gas boiler and running water around 170-180 will I realistically still need to be concerned with low return water temps in relation to flue gas condensation?
Thanks
Ken
I understand that with low water temp installations such as radiant floor heating, return water temps will naturally be less than ideal. My question is if I am running an application using old cast iron rads with a conventional gas boiler and running water around 170-180 will I realistically still need to be concerned with low return water temps in relation to flue gas condensation?
Thanks
Ken
0
Comments
-
Probably not. The concern arises when the return water to the boiler drops below about 140 -- and stays there -- while the boiler is running. Mostly a control issue. Make sure the boiler is set to hold a source temperature high enough, and to make sure there is enough circulation.Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England1
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
- 99 Geothermal
- 156 Indoor-Air Quality
- 3.4K Oil Heating
- 63 Pipe Deterioration
- 916 Plumbing
- 6K Radiant Heating
- 381 Solar
- 14.9K Strictly Steam
- 3.3K Thermostats and Controls
- 53 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements