What’s the best hot water system for different sized households?

Different-sized homes have varying demands for hot water, so choosing a system that meets your household’s needs and budget is essential. Let’s explore the best options for different household sizes.

Small Households (1–2 People)

A compact, energy-efficient water heater is ideal for smaller households. Instantaneous (Tankless) Hot Water Systems are a popular choice. These systems heat water on demand, providing hot water instantly when needed without storing it. Since there's no tank to keep warm, they save on energy costs. Gas-powered units are more cost-effective for most small homes, electric versions are available but are either low flow or high amperage.

Another great option for small households is the 90-135 litre Hot Water Cylinder. These units are affordable, easy to install, and compact. A 90-litre tank should be enough to provide hot water for two people. However, they tend to be less energy-efficient over time compared to tankless systems, as they constantly heat and store water.

Medium Households (3–4 People)

A 180- to 250-litre water cylinder is typically the most suitable option for a family of three or four. Storage tanks allow multiple family members to use hot water without waiting for a re-heat cycle. These systems come in various sizes, with tanks ranging from 180 to 250 litres. 

Heat Pump Hot Water Systems also work well for medium-sized homes. These systems extract heat from the ambient air temperature to heat the water, which makes them energy-efficient, even in colder climates. Though more expensive to install initially, they have lower operating costs, making them a great long-term investment.

Large Households (5+ People)

Larger households with five or more members require a system that can handle high water demands without sacrificing efficiency. For these homes, a Twin Element Large Storage Hot Water Cylinder (250 litres or more) OR a Heat Pump System can provide ample hot water for large households. This setup ensures a constant hot water supply even during high-demand times like multiple showers or dishwashing.

Alternatively, Solar Hot Water Systems are an excellent choice. Solar systems use renewable energy to heat water, making them environmentally friendly and cost-effective. A well-sized solar system can meet a large family’s hot water needs. These systems require a more significant upfront investment but can save on energy bills in the long run.