Natural gas is the most popular alternative to electric water heaters because it is generally less expensive than electricity. Where natural gas is not available, propane water heaters are the most common alternative.

The typical water heater constantly heats the water in the storage tank from the bottom of the unit. Traditionally, the life of gas water heaters is 8-12 years. Once they approach this useful life, most service providers will not perform maintenance since the cost of the repair may exceed the unit value.

Most residential water heaters are 40 gallons or 50 gallons, although the other capacities on the market are 66 gallons, 75 gallons, 80 gallons, and 120 gallons. Within the family of gas water heaters, there are three different types available: standard tank, Energy Star, and tankless water heaters.

Standard Tank Water Heaters

These heaters feature a water storage tank that has been standard for generations. These are the most straightforward and most affordable models, but they are also less efficient than modern water heating technologies.

Energy Star Water Heaters

Energy Star water heaters have increased energy efficiency compared to conventional models. With safer insulation and electric-ignition pilot lights, these gas water heaters can save you around $ 25-30 a year in heating costs.

Natural Gas Water Heaters Tankless

The natural gas water heater tankless is the latest and most efficient water heating technology. It does not have a tank, so it saves physical space and also heats the water as it needs it, so it is much more useful than previous models. One reason why people love water heaters without a tank is their ability to provide infinite hot water, literally.


In conclusion, each owner must assess their own needs against the “pros” and “cons” of each alternative. As a full line provider, Watson Mechanical can help you decide on the best solution for your needs. Whether that be a traditional tank unit or a newer tankless model, Watson Mechanical has installs and service all energy types (gas, propane, electric and oil) and can help guide in making the best decision for your needs and budget. Call us today at 613.732.1319 if you want to evaluate your options. We will give you an honest opinion.