PEX tubing is a great option for your baseboard heating system and is much quieter than copper pipe. This is because the unrestrained liner expansion rate for PEX is much lower than the rate for copper pipe. For every 10 degree increase in temperature, standard PEX expands 1.1 inches per 100 feet.
PEX tubing and baseboard heaters can be found at www.supplyhouse.com.
