Now that fall is officially here, it’s time to prepare your home for cold weather. These steps, most of which you can do yourself, will help lower your utility bills and protect your investment.

There are two types of water heaters:

Tank water heaters (called storage water heaters): these are the kind of water heaters in the US that we commonly see in our basement or garage. These heaters heat water relatively slowly and then store the hot water in a large tank from which hot water may be drawn as needed.
Tankless water heaters or On-demand water heaters, on the other hand, heat water directly as the water passes through the tankless gas or electric heater without using a storage tank.

For about $80 to $100, a technician will inspect your water heaters or heat pump to be sure the system is clean and in good repair, and that it can achieve its manufacturer-rated efficiency. The inspection also measures carbon-monoxide leakage.

Tankless water heaters heat water directly without the use of a storage tank. When a hot water tap is turned on, cold water travels through a pipe into the unit. Either a gas burner or an electric element heats the water. As a result, tankless water heaters deliver a constant supply of hot water. You don’t need to wait for a storage tank to fill up with enough hot water. However, a tankless water heater’s output limits the flow rate.

A tankless water heater heats water through electric heating elements, and controls the temperature, flow rate or power, etc through the circuit, so as to get the suitable temperature for showering or other uses. Are you looking for the best tankless water heater? Trying to decide if a tankless water heater is worth the cost? Here are our suggestion:

Bestseller No. 1
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, small,...
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, small,...
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to...
  • Simple installation - bottom 3/4 inch NPT water connections
Bestseller No. 2
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater
  • External adjustable digital thermostatic control with LED display (+/1 degree...
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating...
  • Simple installation - 3 foot electric cable and 1/2 NPT adapters included; side 1/2...
  • 99.8% energy efficient. External controls to adjust temperature in increments of...

Typically, tankless water heaters provide hot water at a rate of 2–5 gallons (7.6–15.2 liters) per minute. Gas-fired tankless water heaters produce higher flow rates than electric ones. Sometimes, however, even the largest, gas-fired model cannot supply enough hot water for simultaneous, multiple uses in large households. For example, taking a shower and running the dishwasher at the same time can stretch a tankless water heater to its limit. To overcome this problem, you can install two or more tankless water heaters, connected in parallel for simultaneous demands of hot water. You can also install separate tankless water heaters for appliances — such as a clothes washer or dishwater — that use a lot of hot water in your home.

SaleBestseller No. 1
InSinkErator H-HOT150SN-SS Invite Hot150 Single Handle Instant Hot Water...
InSinkErator H-HOT150SN-SS Invite Hot150 Single Handle Instant Hot Water...
  • Includes Satin Nickel finish instant hot water dispenser and 2/3-gallon stainless...
  • Delivers near-boiling water with easy-to-adjust temperature control. Adjustable...
  • Tool-free tank connections and dry-start protection to ease installation. Spout...
  • Ideal for instantly preparing hot coffee, tea, and other food, cleaning dishes,...
Bestseller No. 2
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented...
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented...
  • Lifetime warranty
  • Save up to 60-percent on your water heating cost with an ECOSMART electric tankless...
  • Never run out of hot water with an ECOSMART tankless water heater
  • Patented Self Modulating Technology and design

Why are tankless water heaters more efficient?

Comparing tankless versus storage water heaters, Storage water heaters may have a lower initial cost but a higher lifetime cost, although this is less true now that water heaters often have strict emissions limitations that raise the out-the-door cost. Tankless water heaters typically have a life expectancy of 20 years or more, whereas storage water heaters typically last 10 to 15 years.

SaleBestseller No. 1
EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps...
EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps...
  • Savings of up to 50% on water heating costs. Dimensions :17H x 17W x 3.625D inches...
  • Digital temperature control in 1-degree increments allows control of hot water;...
  • Copper and stainless components designed for efficiency, durability and easy...
  • Compact size saves valuable storage space, while the stylish and advanced design is...
SaleBestseller No. 2
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5)  -...
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) -...
  • CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink...
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium...
  • INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent...
  • FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand...