Modern technology reaches many industries, and plumbing is among these. At All Hours Plumbing, Heating & Air, we strive to bring you the most up-to-date and modern appliances and services for your commercial plumbing needs.

Within the water heating realm, this often means a tankless water heater. Also called an on-demand water heater, a tankless heater offer several potential benefits to conventional heaters. Let’s find out how tankless heaters work, and what benefits they may offer you.

How They Work

When you turn on your hot water tap, the tankless water heater first draws some cold water through a pipe into the unit. Once it’s there, the unit heats the water using either a gas burner or an electric heating element.

This removes the need for a tank to hold constantly-hot water all the time. Most tankless heaters can deliver water at a rate of two to five gallons per minute, with gas-firing models claiming higher general rates than electric models.


There are two types of tankless water heaters:

  1. Small units installed near point of use: These are used for single sources of water, with smaller output capacities
  2. Larger units capable of serving an entire house: Can be used for multiple points of use


There are several big advantages to tankless water heaters:

  • Compact: They take up less space than conventional heaters
  • Standby losses: This energy wasted while hot water cools down in pipes, or while it sits in the storage tank. For this reason, there can be major cost benefits to on-demand heaters as well
  • Less water: Only the amount of hot water needed is used, and you don’t need to let the water run for a while before it turns from cold to hot
  • Unlimited hot water
  • Durability: The expected life of a tankless water heater is up to 20 years. With most conventional heaters, it’s closer to 10 or 15 years

Want to learn more about tankless water heaters, or any other element of our water heating or commercial plumbing services? Speak to the experts at All Hours Plumbing, Heating & Air today.