If you've noticed cold spots on your radiator, it's likely due to sludge build-up, and if left untreated, it can reduce heating efficiency and spike your energy bills ...

This can "quickly" fix a radiator that isn't getting warm ...

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 ...

Poor insulation has a similar effect. If your home lacks adequate loft, wall or floor insulation, it can lose heat quickly, meaning a chunk of the energy you pay for never gets a chance to warm your ...

From thermostat misuse to unserviced boilers, these heating errors waste energy and cost you money. Learn how to avoid them.