How often you should have your hot water "on" depends entirely on your system's setup.
Whether you use your boiler or the immersion heater, you don't need to constantly heat the hot water cylinder. This is because a well-insulated hot water cylinder should keep the water warm for at least a day. Try heating the water for an hour in the morning and an hour in the evening.
For most customers, we recommend turning on your furnace when the weather is consistently below 18° Celsius, which usually happens to be around the end of September, or early October. Some homeowners try to put off turning on their furnace as long as they can to save money, which is okay if you're healthy adults.
A 10-minute shower typically uses 12 to 25 gallons of hot water, depending on your showerhead's flow rate and how hot you keep the water.
Typically, a furnace should cycle 3 to 8 times per hour, running for about 10 to 15 minutes each time. If it's cycling more frequently (short cycling) or running for 20+ minutes straight regularly, something's not right.
What is the Best Temperature to Keep Your House in the Winter? The average ideal room temp is around 68–72° F in the winter, depending on your personal preference.
It takes time for your home to warm up and cool down. If you're not sure how long it takes, try turning the heating on about 30 minutes before you need it. You should turn it off 30 minutes before you'll stop needing it.
Some common causes of high water bills include:
The 4-minute shower rule is a sustainability and cost-saving initiative advising people to limit their daily showers to four minutes or less. This practice helps conserve water, reduce energy used for heating, and lower household utility bills by limiting consumption to approximately 36–40 liters (roughly 9.6–10.5 gallons) per shower.
Your tank size is the most significant determinant of how long you can have a hot shower: 30-gallon tank: ~5–7 minutes of hot water. 40-gallon tank: ~8–10 minutes. 50-gallon tank: ~10–12 minutes.
Extreme heat is the leading weather-related killer, causing more fatalities each year globally and in the United States than all other extreme weather events—such as hurricanes, tornadoes, and floods—combined.
We asked our social media community when they usually start to turn on their heating. More than half (58%) people said they leave it as late as they can before they turn the heating on. And a third (33%) said they already had the heating on by mid-September.
The global temperature forecast from ECCC indicates that 2026 will likely be among the four hottest years on record, comparable to 2023 and 2025, and approaching 2024, the hottest year ever recorded.
This problem usually comes down to capacity, heat production, or mixing issues inside your plumbing system. Sometimes the fix is simple, like adjusting your water heater temperature or flushing out sediment. Other times you may need a new mixing valve, an element replacement, or a different size water heater.
It's generally much cheaper to heat water using your central heating system, rather than using electricity with an immersion. The exception might be during the summer, when you have your central heating turned off, or if you have an old inefficient boiler.
In winter, you should set your water heater between 120°F and 130°F (49°C to 54°C). This range strikes the perfect balance between keeping your hot water warm enough to offset the cold incoming groundwater and keeping your energy bills and scalding risks in check.
If a standard showerhead is fitted, it will use around an extra half a gallon each minute, accounting for a 25-gallon emittance every 10 minutes, or 50 gallons throughout a 20-minute shower. *1 gallon = 4.54 litres.
Sometimes, the reason why your water heater is running out of hot water faster than normal is simply due to the thermostat being set too low or a valve not working properly. Both of these can make your system underperform, which might explain why your hot water doesn't last.
Keep the top of the tank free of dust, debris and flammable products such as paint, gasoline, solvents or adhesives. Also, never use these products near a water heater or any other natural gas or electric appliance because vapors from flammable liquids can ignite.
Most seniors only need to shower or bathe two to three times per week to maintain proper hygiene. Because aging skin is thinner, drier, and more prone to cracking, excessive washing can strip away natural oils and lead to irritation.
Toilet and faucet leaks
The most common cause for a high water bill is running water from your toilet. A continuously running toilet can waste up to 200 gallons a day or more depending on the volume flow down the drain.
Skipping showers for four days is generally safe and causes no lasting medical harm. However, your body’s natural oils and dead skin will accumulate. You will likely experience a greasy scalp and strong body odor. Minor itching or irritation may also occur as bacteria feed on sweat and oils.
Top 5 Water Wasters in Your Home
Average monthly water bill
The average water bill in the U.S. is $49 per month, with most bills falling between $40 and $60 per month. However, monthly water bills range from $15 to $100+, depending on the household size, water usage, and location. A typical family of 4 uses over 300 gallons of water per day.
The #1 water waster in your home is the toilet.
A leaking toilet can waste 15,000 gallons of water a month.