Tankless water heaters are a great way to improve your hot water efficiency and ensure that
you have an adequate supply of hot water for your family’s daily routine. Sometimes known as
“on-demand” water heaters, they also free up space by eliminating the need for a large hot
water heater. Tankless water heaters can be either electric or propane. Let’s explore the cost,
efficiency, and sustainability of both types.
There are three important cost elements to consider when searching for a tankless water
heater: cost of the unit, cost of installation and cost of operation.
Propane tankless water heaters may cost $3500 per unit. The installation can be very expensive
due to complex venting and combustion air supply requirements, which requires hiring a
professional to pipe the unit properly.
Electric tankless water heaters cost about $500 – $1200 per unit. They can be installed closer to
the source where hot water is needed because they have a smaller profile and do not require
ventilation, so no home retrofit should be required.
Newer propane tankless water heaters can get efficiencies of up to 98% while electric tankless
water heaters operate at the same efficiency. But, propane gas is cheaper than electricity which
means you save more money annually by choosing a propane tankless water heater.
Propane gas is considered the cleanest burning fossil fuel, so it is more environmentally friendly
than using electricity. Both types of tankless water heaters should be expected to last about 20
years, which is significantly more than the 10-year average of traditional tank hot water heaters.
For propane tankless water heaters, an annual service inspection is recommended to ensure
proper operation throughout the system. Electric tankless water heaters do not need annual
It is important to research the total cost of a tankless water system before choosing to install
one. It will pay for itself over time through energy savings. There are many other reasons to
choose a tankless water system. Hot water on demand is nice to have if you are the last one in
the shower in the morning. The space required for a tankless system is also significantly smaller
than that of a tank, which free up lots of storage space in your home.
tankless heater may be right for you.