In conclusion, copper pipes are robust and resistant to high temperatures, but they are more vulnerable to freezing and bursting, especially in cold conditions. Plastic pipes, particularly PEX, offer better resistance to freezing and can expand without bursting, making them more suitable for narrow boats exposed to colder climates.
Advantages of Copper Pipes:
Durability: Copper pipes are long-lasting and resistant to corrosion, ensuring fewer replacements over time.
Heat Resistance: Copper can withstand high temperatures, making it suitable for both hot and cold water systems.
Bacteria Resistance: Copper has natural antimicrobial properties, reducing the likelihood of bacterial growth in water lines.
Strength: Copper pipes are strong and can endure physical impacts and pressure variations common in narrow boat conditions.
Disadvantages of Copper Pipes:
Cost: Copper is more expensive than plastic piping, both in terms of material and installation.
Weight: Copper pipes are heavier, which can be a disadvantage on a narrow boat where managing weight is crucial.
Corrosion in Saltwater: In marine environments or boats exposed to saltwater, copper can corrode if not properly maintained.
Installation Complexity: Copper requires soldering, making repairs and modifications more labour-intensive.
Freezing Issues: Copper pipes are more prone to bursting if water inside them freezes. While they can handle some freezing conditions, without proper insulation or precautions in cold climates, they are at higher risk of damage.
Advantages of Plastic Pipes (e.g., PEX):
Cost-Effective: Plastic pipes are generally cheaper to purchase and install.
Flexibility: Plastic is easier to bend and install, especially in confined spaces like a narrow boat.
Lightweight: Plastic pipes are lighter, which is beneficial for weight management on a boat.
Corrosion Resistance: Plastic is resistant to corrosion, making it ideal for various water conditions, including saltwater.
Freezing Resistance: Plastic pipes, especially PEX, are more resistant to damage from freezing. They can expand slightly when water freezes, reducing the risk of bursting, which makes them a better choice in colder climates or during freezing conditions.
Disadvantages of Plastic Pipes:
Heat Sensitivity: Plastic may not withstand extremely high temperatures as well as copper.
UV Degradation: If exposed to sunlight, plastic pipes may degrade over time unless properly shielded.
Lower Durability: Plastic pipes are more susceptible to damage from impacts or pressure changes, though they are flexible enough to handle some freezing.
Potential for Leaching: Some concerns exist over chemicals leaching from plastic into drinking water, although this is minimal with modern materials.