Insulation in hot water pipes cuts down on heat loss and can raise water temperature 2ºF–4ºF warmer than in uninsulated pipes. A quality pipe insulation, such as Nomaco K-Flex's Therma-cel Pipe Insulation, works to slow heat loss. This lessens the wait for hot water, which conserves water usage, and allows you to lower your water temperature setting, which saves energy. Therma-cel Pipe Insulation also prevents condensation and frost formation when used with cold water plumbing or air-conditioning lines.
Therma-cel Pipe Insulation can be found at www.supplyhouse.com