master plumber, this is a repeat post from 12/31/06. still having problems with radiators not getting hot, just the riser are hot now, it take over an hour for heat to start coming up the riser after ...

How hot does your engine run? Is it on the cool side? The hot side? Where should it be? How big of a radiator should you run? Antifreeze or water? Tap or distilled? Do you need a pressurized cooling ...

Over time, heating systems can build up sludge made from rust, debris, and limescale. This sludge settles inside radiators, ...

If your radiators aren't heating up properly during the cold snap, it's often due to trapped air - but there's a simple DIY ...