One person typically consumes roughly 50 liters of hot water per day – more if you take long hot showers or frequently wash your clothing in warm or hot water. Request that a hot water system supplier like Same Day Hot Water Service examine your property and usage patterns before making recommendations. A supplier should ask a few crucial questions to figure out how much hot water your home consumes and when in order to calculate the proper system size.
- How many people do you have living in your house?
- When do you usually take showers or baths? Is it better to exercise in the morning, evening, or both? How many showers will there be, and how long will they last?
- Do you use hot or cold water to wash your clothes? Many front-loading washing machines only utilize cold water (which they heat themselves), avoiding the use of your hot water system. However, if your washing machine is linked to a hot water tap and you use hot wash cycles, your hot water system will be drained.
- Do you mostly wash your dishes by hand or do you use a dishwasher? Dishwashers typically utilize just cold water (which they heat themselves), so they do not use your hot water supply, whereas hand-washing does.
- Is the hot water system connected to the major outlets (such as the kitchen sink or the shower) via a long pipe? This is inefficient, as it results in long delays for hot water and wastes both energy and water. A shorter route is preferable, and the hot water line should be insulated at the very least. A good installer/plumber can assist you with this, but it will obviously increase the cost of the job.
Obtain quotations from at least two different hot water suppliers.
A solar hot water system might be the most efficient and cost-effective option for most families. If that isn’t a possibility, consider the following alternatives.
- A small family of 1–2 people:- Hot water system with a compact gas storage tank or a hot water system with a continuous flow (gas or electric).
- Medium-sized family (3–4 people):- A heat pump or a gas system (continuous flow or storage).
- A large family (5 or more people):- Although a multiple continuous flow hot water system is an option, gas storage tanks may be more cost-effective. Large heat pumps can also be used.
Star ratings for energy efficiency
Electric hot water storage systems, gas hot water storage systems, and gas instantaneous systems are all subject to the Minimum Energy Performance Standards (MEPS). They are not, however, required to have energy star labels.
On gas hot water systems, you’ll notice star ratings, but this is an industry-managed plan that isn’t governed by the government. It has nothing to do with the energy efficiency star ratings that are applied to devices like refrigerators and air conditioners.
MEPS are currently being considered for use in different types of water heaters. This will help to eliminate inefficient models from the market, and all hot water systems may be given a star rating.
The above list is not exhaustive, and new plans emerge from time to time, so it’s worth checking with your state and local governments or doing your own research. A skilled local hot water system installer will also be able to tell you about any available rebates in your area.