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.
Adding radiant zone
williamgxxx
Member Posts: 4
I’m adding a radiant zone to my Weil Mclain ultra 155 boiler. I have two high temp radiator zones already. The manual says that if the radiant zone is less then 30% loss then I do not need a mixing valve. What will happen when a high temp radiator calls at the same time?
0
Comments
-
Your going to get the high temperature. What type of radiant are you adding? How large? A big picture of your current system will help tremendously.0
-
Thank you for your help.
I have primary/secordary piping with two circulators for radiators and a indirect fired water heater I’m thinking of adding a 300’ loop in 1/2” pex for a subfloor install under a kitchen.
Why would Mclain suggest this?0 -
You need some type of mixing valve. If not the radiant which must be supplied with less than 120 degree water will get high temperature water0
-
-
That means that particular zone should be less than 30% of your system design btu's. Not 30* lower water temperature. For radiant floor load in your case like Ed said will need some type of mixing device to lower the water temperature in that zone. Note: this device placement should be after all of your high temp. zones.0
-
Categories
- All Categories
- 86K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 52 Biomass
- 421 Carbon Monoxide Awareness
- 80 Chimneys & Flues
- 1.9K Domestic Hot Water
- 5.3K Gas Heating
- 96 Geothermal
- 154 Indoor-Air Quality
- 3.3K Oil Heating
- 60 Pipe Deterioration
- 892 Plumbing
- 5.9K Radiant Heating
- 378 Solar
- 14.7K Strictly Steam
- 3.2K Thermostats and Controls
- 52 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements