Hot water cylinders, also known as hot water tanks or water heaters, are essential components of residential and commercial plumbing systems. Here’s what they do:

Heat and Store Water: The primary function of a hot water cylinder is to heat and store hot water for domestic use. Cold water enters the cylinder from the mains supply or a cold water storage tank and is heated to the desired temperature by an internal heating element (in electric cylinders) or an external heat source (such as a boiler or heat pump).

Provide Hot Water On-Demand: Once the water inside the cylinder reaches the set temperature, it is stored until needed. When hot water taps are turned on, the pre-heated water is drawn from the cylinder and delivered to faucets, showers, baths, and appliances throughout the property.

Maintain Temperature: Hot water cylinders are equipped with insulation to help retain heat and prevent energy loss. This ensures that the stored water remains hot and readily available for use, even when not in immediate demand.

Offer Different Heating Methods: Hot water cylinders can be heated using various methods, including electricity, gas, solar energy, or heat pumps. The choice of heating method depends on factors such as energy efficiency, cost-effectiveness, and availability of resources.

Accommodate Different Sizes and Capacities: Hot water cylinders come in various sizes and capacities to suit the hot water requirements of different households or commercial properties. Larger cylinders can store more hot water, making them suitable for properties with high hot water demand or multiple occupants.

Provide Backup Hot Water: In properties with a combi boiler or instant hot water system, a hot water cylinder can serve as a backup source of hot water during peak demand periods or in the event of boiler failure.

Overall, hot water cylinders play a crucial role in providing a reliable and consistent supply of hot water for bathing, washing dishes, laundry, and other domestic or commercial purposes, contributing to comfort, hygiene, and convenience.

In New Zealand, installing a hot water cylinder typically requires a qualified plumber due to safety and regulatory considerations. Plumbers are trained and licensed professionals who understand the plumbing codes and standards that must be adhered to during installation.

Attempting to install a hot water cylinder yourself without the necessary skills and qualifications can pose significant risks, including:

Safety Hazards: Working with plumbing systems involves handling pressurized water and potentially hazardous materials like gas or electricity. Improper installation can lead to leaks, flooding, electrical shocks, or gas leaks, posing serious safety risks to you and your property.

Legal Compliance: New Zealand has strict regulations governing plumbing work, including hot water cylinder installations. DIY installations that do not comply with these regulations may result in fines, penalties, or difficulties obtaining insurance coverage in the event of a plumbing-related incident.

Warranty Considerations: Many hot water cylinders come with manufacturer warranties that require professional installation by a licensed plumber. Attempting to install the cylinder yourself could void the warranty, leaving you responsible for any repair or replacement costs.

Quality of Work: Plumbers have the knowledge, experience, and specialized tools required to install hot water cylinders correctly. DIY installations may result in subpar workmanship, leading to performance issues, inefficiencies, and premature failure of the system.

If you’re considering installing a hot water cylinder in New Zealand, it’s strongly recommended to hire a licensed plumber to ensure the job is done safely, legally, and to the highest standards. A qualified plumber can assess your needs, recommend the appropriate system, and handle the installation process professionally, giving you peace of mind and confidence in the reliability of your hot water supply.