Anti sweat insulation means to prevent condensation of atmospheric water vapour on the surface of pipe is called anti sweat insulation.
Pigging is process of removal of Deposited coke in the heater tubes
because of their functions
The liquid formed by the condensation of a vapor; in steam heating, water is condensed from steam; in air conditioning, water is extracted from air.For the source and more detailed information concerning this subject, click on the related links section (Answers.com) indicated below.
Kerosene, LPG, Wood, and many other fuels
Condensation, when you heat water the water boils and lets of steam, steam collects around the water heater as condensation.
It's leaking somewhere, possibly in your heater core.
Anti sweat insulation means to prevent condensation of atmospheric water vapour on the surface of pipe is called anti sweat insulation.
If you mean condensation (note spelling) then the opposite process is called evaporation.
it could be the heater is leaking!
Condensation Or the tank rusted out
You most likely have a leak or your car is overheating. If you are smelling it in the car then in all probability the heater core is leaking.
This is for the condensation from the AC system to drain. What is happening in your case is that the heater core is leaking and radiator fluid is draining out the AC condensation drain.
Not unless your heater core leaks.
Anti-freeze smell inside vehicle when you turn on the heat. Greasy windshield from the anti-freeze leaking from the heater core while the heat is running. Also check the passenger side of the vehicle carpet under the carpet and check the heater core hoses under the hood of your vehicle for anti-freeze leaking at the fire wall where the heater core hoses go. That about covers it. If all checks out do a pressure test on your anti-freeze circuit and this will definitely bust the culprit of the leak. Last of all, if you have no leak and your heat is not working and the heater core is in circuit with the anti-freeze with no leaks, replace the heater core. C.S
generally if anti freeze is leaking into car this indicates that the heater core is worn out and has a hole you need to replace heater core ,or lift the hood and disconect the heater hoses join the hoses together with small pipe and 2 hose clamps and the leak will stop But the heater will not work
If you can smell anti-freeze when you are driving down the road it could be the heater core, if not check you anti-freeze level, if that is ok I would say it could be your thermostat. hope this helps.