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.
A bit about vacuum pumps

HeatingHelp
Administrator Posts: 694

He wanted to take advantage of the 1,700:1 expansion ratio between water and steam. The trick was to make all the pipe joints tight so that air couldn’t get back into the system once the steam had shoved the air out, and to use special air vents that had check valves at the outlets.
0
Comments
-
very good0
-
Before heating season begins,it's a good idea to pump down as low as you can.Air is never good for steam heating.0
Categories
- All Categories
- 86.7K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 56 Biomass
- 423 Carbon Monoxide Awareness
- 104 Chimneys & Flues
- 2K Domestic Hot Water
- 5.6K Gas Heating
- 103 Geothermal
- 159 Indoor-Air Quality
- 3.6K Oil Heating
- 69 Pipe Deterioration
- 942 Plumbing
- 6.2K Radiant Heating
- 385 Solar
- 15.3K Strictly Steam
- 3.4K Thermostats and Controls
- 54 Water Quality
- 43 Industry Classes
- 47 Job Opportunities
- 18 Recall Announcements