heat
A large selection of companies produce radiator valves. IVAR and MEPCO are two of the largest producers of radiator valves in the US. There parts can be found through their distributor listings.
There are plenty of ways a car can break down without the radiator being a part of the cause. As for the reason you'd see steam from a radiator, it would escape if there was a leak in the radiator or the hoses, or if the cap was opened. The contents in a radiator are very hot - hot enough to produce steam.
"The radiator was invented in 1855 by Franz SanGalli. He was the first to produce a system of central heating and patented his invention in Germany and the US."
There are several companies who produce or sell cast iron models of radiators. For example, try the company 'Cast Rads' of the 'Radiator Center' for these radiators.
Look along the bottom of the side radiator tanks. If there is a drain valve/petcock it will face inward towards the engine. If you can't find one then the radiator doesn't have one. Radiator drains have fallen out of favor over the years because they cost more to produce and it's one more place for coolant to leak out. If there is no drain then you will have to remove the lower radiator hose.
Radiators produce heat by transferring thermal energy to the surrounding air in a room. They are part of a heating system that uses hot water or steam circulating through the radiator to warm up indoor spaces.
An oil-filled heater such as the DeLonghi does not produce C02 - there is no combustion involved - an electric heating element inside a sealed metal housing transfers heat to encapsulated oil, which in turn heats up the entire radiator housing. The heated housing then transfers heat to the air in the room.\
Unless your radiator has a leak, the radiator fluid stays in the radiator.
The 2003 Nissan radiator petcock is located on the bottom of the radiator. The radiator petcock will be in the center of the radiator bottom.
Drain the water from your Corvette radiator. Remove the radiator hoses. Remove the radiator stabilizing arm bolt. Remove the radiator retaining bolts. The radiator will come off.
Drain the water from the radiator. Remove the radiator hoses. Remove the radiator stabilizer arm. Remove the radiator retaining bolts. Reverse the process to install the new radiator.
if there is no drain petcock on lower radiator tank, removing bottom radiator hose at radiator is the only way to drain radiator