air in water lines usally accur when the water in turned off for some reason,just let the water run in a tub for 5 min. air in water lines that make your pipe rumble, you need air chamber installed. its called water hammer turn of all hot faucets and run till air stops coming out and steady stream of water comes out.
The hot water is brought through a series of small tubes like a radiator in a car by means of a circulator pump that pushes it. A small blower fan blows air over these coils filled with very hot water, extracting heat as the air moves over them, the now lukewarm water is returned to the water heater through a oneway valve where it is reheated and the cycle continues.
Install a bleeder valve at the upper end of the pipe and when you fill the system open up the bleeder and the air will bleed out. this involves soldering so if you don't know how to do that you'll need to phone a good plumber.
For domestic and heating I like using a Hoffman #75 air vent
By letting in run for a while
Install an Automatic air vent
air in water lines usally accur when the water in turned off for some reason,just let the water run in a tub for 5 min. air in water lines that make your pipe rumble, you need air chamber installed. its called water hammer turn of all hot faucets and run till air stops coming out and steady stream of water comes out.
Install a spirovent
To remove air from Water lines you simply need to run the water for an extended period of time. Traditional tank type water heaters will hold air and the air must be gotten out especially if it is an electric unit. Go to any faucet (preferably one where you have a separate knob or lever for the hot and the cold) and turn it on full blast until you have a solid and consistent flow of water from both the hot and cold water lines. If the Water Heater has emptied you will need to run the Hot Water for a very extended period of time. The faucet(s) will do a lot of spitting and sputtering and making noise but this is normal and necessary. Hope this helps!
Cold water lines may have more insulation than hot water lines, otherwise they should both freeze unless there is some agent in the water.
You need to open all hot taps and allow all the water to run out and push the air out with it. It may take some time but it will eventually clear itself.
This is probably a pressure imbalance problem or you have air in the lines. see the related video link provided.
== Answer== I don't think so, but get the air out of lines to make sure.
Hot air.
Odds are that the cold water lines to the faucet you are trying to use are shut off but the hot water lines coming from the water heater are not. That is why you have hot water but no cold water.
Steam heat normal Hot water perhaps air in lines and need to be purged
Usually blowing only hot air means the water is not covering the pads. This could be abad water pump, clogged pump inlet, low water level or clogged distribution lines where they drip water on the pads. It is possible the pads are also caked with mineral deposits and no air can get through. Take the cover off and see what the water is and is not doing.
No. If you have hot water heat, you also have a separate air handler for the AC to circulate the air.