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.
hydronic baseboard BTU calculation based on water temperature
nuheat
Member Posts: 1
Hydronic baseboards are rated at a certain BTU e.g. 330BTU/ft. But at what water temperature is the BTU rating (180F?). If I change water temp to that of a regular water heater e.g. 110 then what does the BTU rating change to? Is there any formula to calculate?
0
Comments
-
I would call the manufacturer of the baseboard you want to use. You need to know the approximate flow rate of the water and what your temperature drop will be.
for instance most 3/4 fin tube with 180 average water temp will be around 550/foot with a 20 degree TD 190 supply 170 return 180 average water temp.
You need the above information to get an accurate answer on your application0 -
Manufacturer unresponsive. This should be independent of manufacturer and can be calculated just based on Physics.0
-
Most radiation manufacturers’ websites include a derating chart to show the output at various water temperatures. Here is one from one of the more popular manufacturers:—
Bburd1
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
- 63 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